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• Assign individual NIC to KVM guest

  - by Bin S

  I have a server with 6 NICs installed and is running Ubuntu 12.04LTS. I want to setup 4 guest VMs using kvm. Now I want to assign 2 NICs for the host(1 Public IP and 1 private IP), and 1 NIC each to 4 guest VM(all private IP). How do I do this? /etc/network/interfaces I am having trouble with my configuration file shown below: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 192.168.1.109 netmask 255.255.255.0 gateway 192.168.1.5 auto eth1 iface eth1 inet static address 192.168.1.117 netmask 255.255.255.0 auto eth2 iface eth2 inet manual auto br0 iface br0 inet static address 192.168.1.118 netmask 255.255.255.0 bridge_ports eth2 bridge_fd 9 bridge_hello 2 bridge_maxage 12 bridge_stp off auto eth3 iface eth3 inet manual auto br1 iface br1 inet static address 192.168.1.119 netmask 255.255.255.0 bridge_ports eth3 bridge_fd 9 bridge_hello 2 bridge_maxage 12 bridge_stp off auto eth4 iface eth4 inet manual auto br2 iface br2 inet static address 192.168.1.123 netmask 255.255.255.0 bridge_ports eth4 bridge_fd 9 bridge_hello 2 bridge_maxage 12 bridge_stp off auto eth5 iface eth5 inet manual auto br3 iface br3 inet static address 192.168.1.124 netmask 255.255.255.0 bridge_ports eth5 bridge_fd 9 bridge_hello 2 bridge_maxage 12 bridge_stp off

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• IPTables forward from only one ip on my server

  - by user1307079

  I was able to get my server to forward connections on a certain port to a different IP, but when I add -d to specify an IP to froward from, It does not work. This is what I am trying, iptables -t nat -A PREROUTING -d 173.208.230.107 -p tcp --dport 80 iptables -t nat -nvL-j DNAT --to-destination 38.105.20.226:80. It works fine without the -d. Here is my ifconfig dump: em1 Link encap:Ethernet HWaddr 00:A0:D1:ED:D0:54 inet addr:173.208.230.106 Bcast:173.208.230.111 Mask:255.255.255.248 inet6 addr: fe80::2a0:d1ff:feed:d054/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:100058 errors:0 dropped:0 overruns:0 frame:0 TX packets:18941701 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12779711 (12.1 MiB) TX bytes:825498499 (787.2 MiB) Memory:fbde0000-fbe00000 em1:9 Link encap:Ethernet HWaddr 00:A0:D1:ED:D0:54 inet addr:173.208.230.107 Bcast:173.208.230.111 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Memory:fbde0000-fbe00000 em1:10 Link encap:Ethernet HWaddr 00:A0:D1:ED:D0:54 inet addr:173.208.230.108 Bcast:173.208.230.111 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Memory:fbde0000-fbe00000 em1:11 Link encap:Ethernet HWaddr 00:A0:D1:ED:D0:54 inet addr:173.208.230.109 Bcast:173.208.230.111 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Memory:fbde0000-fbe00000 em1:12 Link encap:Ethernet HWaddr 00:A0:D1:ED:D0:54 inet addr:173.208.230.110 Bcast:173.208.230.111 Mask:255.255.255.248 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Memory:fbde0000-fbe00000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

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• Libvirt/KVM in NAT: can't access from host (and can't forward)

  - by SharkWipf

  I'm trying to set up a port forward to a KVM guest, managed through Libvirt on Debian 6. The VM is running in NAT, through the "default" network. This all runs fine, the VM has full internet connection. However, the host cannot reach the vm internally. Neither ping, nc nor nmap on the NAT network give any signs of the VM. Due to this, the normal iptables forwarding rules don't work either. $ cat /etc/debian_version 6.0.5 $ libvirtd --version libvirtd (libvirt) 0.9.11.3 $ kvm --version QEMU emulator version 1.0 (qemu-kvm-1.0+dfsg-11, Debian), Copyright (c) 2003-2008 Fabrice Bellard ifconfig: eth0 Link encap:Ethernet HWaddr 54:04:a6:f1:6f:10 inet addr:x.x.x.x Bcast:x.x.x.x Mask:255.255.255.x inet6 addr: fe80::5604:a6ff:fef1:6f10/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:118902 errors:0 dropped:0 overruns:0 frame:0 TX packets:142357 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:13247173 (12.6 MiB) TX bytes:95163190 (90.7 MiB) Interrupt:28 Base address:0xe000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:230646 errors:0 dropped:0 overruns:0 frame:0 TX packets:230646 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:204577107 (195.0 MiB) TX bytes:204577107 (195.0 MiB) virbr0 Link encap:Ethernet HWaddr fe:54:00:e2:d2:60 inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5050 errors:0 dropped:0 overruns:0 frame:0 TX packets:961 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:666759 (651.1 KiB) TX bytes:400701 (391.3 KiB) vnet0 Link encap:Ethernet HWaddr fe:54:00:e2:d2:60 inet6 addr: fe80::fc54:ff:fee2:d260/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5050 errors:0 dropped:0 overruns:0 frame:0 TX packets:125687 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:739803 (722.4 KiB) TX bytes:6886609 (6.5 MiB)

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• Ubuntu - wireless connection works great but wired is totally dead

  - by Dan

  I am running Ubuntu 10.04 on my Acer Aspire One netbook. The wireless connection works great, but the wired is totally dead. When I plug the Ethernet wire, the little led next to the port doesn't blink. If I do ifconfig, this is the output: lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:1659 errors:0 dropped:0 overruns:0 frame:0 TX packets:1659 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:132304 (132.3 KB) TX bytes:132304 (132.3 KB) wlan0 Link encap:Ethernet HWaddr 18:f4:6a:65:48:1f inet addr:192.168.1.7 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::1af4:6aff:fe65:481f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:94823 errors:0 dropped:0 overruns:0 frame:0 TX packets:81390 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:93028474 (93.0 MB) TX bytes:18002558 (18.0 MB) There is no eth0. Is that normal? In the "Network Connections" GUI there is an entry "Wired connection 1", its "MAC address" field is blank. How can I make the wired connection work?

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• Router intermittently failing

  - by nomen

  My old Asus router died a few weeks ago, so I thought I'd set up my Debian box to deal with routing my home network. I have a few complications, but I adapted my configuration from a previously working configuration, and I don't see why I am having intermittent problems. But I am having them! Every so often, my SSH connections to the router (and to the Xen virtual machines hosted by the router) just drop. I am unable to use the router's dns server. I can't ping the router. Etc. All of these things work most of the time, but break down intermittently, for a few minutes at a time. (I can provide more details, but I'm not sure what will be helpful) /etc/network/interfaces: # The loopback network interface auto lo iface lo inet loopback # Gigabit ethernet, internal network auto eth0 allow-hotplug eth0 iface eth0 inet manual # USB ethernet, internet auto eth1 allow-hotplug eth1 iface eth1 inet dhcp # Xen Bridge auto xlan0 iface xlan0 inet static bridge_ports eth0 address 10.47.94.1 netmask 255.255.255.0 As I understand it, this is sufficient to create the network interfaces, and even do some switching between Xen hosts and my eth0 interface. I installed and configured Shorewall to manage routing between the bridge and my internet-facing interface: /etc/shorewall/zones fw firewall net ipv4 lan ipv4 /etc/shorewall/interfaces net eth1 detect dhcp,tcpflags,nosmurfs,routefilter,logmartians lan xlan0 detect dhcp,tcpflags,nosmurfs,routefilter,logmartians,routeback,bridge /etc/shorewall/policy net all DROP info fw net ACCEPT info all all REJECT info /etc/shorewall/rules DNS(ACCEPT) fw net DNS(ACCEPT) lan fw Ping(ACCEPT) lan fw ... and so on, these all work, when the router is accepting traffic at all. /etc/shorewall/masq eth1 10.47.94.0/24 Also, the router is currently "working", and I checked on a problematic client: arp infrastructure infrastructure.mydomain (10.47.94.1) at 0:23:54:bb:7d:ce on en0 ifscope [ethernet] I tried it when the router was down, and I (eventually) got the same response. It took about 30 seconds to return, though.

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• Ubuntu IP Configuration - multiple subnets & interfaces

  - by HaydnWVN

  Have a 'new' mailserver running postfix on Ubuntu. We are having some problems configuring the subnets & interfaces. Basically 2 subnets (.253. & .254.) need to be connected through the 3rd subnet (.252.) where the Router is residing. # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 10.62.254.199 netmask 255.255.0.0 network 10.62.254.0 broadcast 10.62.255.255 #gateway 10.62.252.138 # dns-* options are implemented by the resolvconf package, if installed dns-nameservers 10.62.252.138 dns-search ***.com auto eth1 iface eth1 inet static address 10.62.253.199 netmask 255.255.0.0 network 10.62.253.0 broadcast 10.62.255.255 #gateway 10.62.252.138 #dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199 dns-nameservers 10.62.252.138 dns-search ***.com auto eth2 iface eth2 inet static address 10.62.252.199 netmask 255.255.0.0 network 10.62.252.0 broadcast 10.62.255.255 gateway 10.62.252.138 #dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199 dns-search ***.com I have an external support company who are looking into this (they built and configured this server), but it's taking far too long... So I'm looking to highlight the mistake!

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• how to get ip address of a PPP(Point-to-Point Protocol) network interface?

  - by Xsmael

  I have a Linux machine with two network interfaces, and I'd like to get the IP address of the PPP interface w1g1 but it doesn't show up in ifconfig. There is a public IP on the PPP interface, but there is no internet connection, I'm trying to troubleshoot but I need to get the IP address of the interface and I can't. ifconfig : eth0 Link encap:Ethernet HWaddr 00:30:48:8D:F0:2C inet addr:192.168.2.254 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::230:48ff:fe8d:f02c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:9970 errors:0 dropped:567 overruns:0 frame:0 TX packets:4338 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:1441024 (1.3 MiB) TX bytes:915814 (894.3 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:675 errors:0 dropped:0 overruns:0 frame:0 TX packets:675 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:50659 (49.4 KiB) TX bytes:50659 (49.4 KiB) w1g1 Link encap:Point-to-Point Protocol UP POINTOPOINT RUNNING NOARP MTU:240 Metric:1 RX packets:748994 errors:0 dropped:0 overruns:0 frame:0 TX packets:748992 errors:0 dropped:0 overruns:0 carrier:3 collisions:0 txqueuelen:100 RX bytes:179758560 (171.4 MiB) TX bytes:179758080 (171.4 MiB) Interrupt:177 Memory:f881c400-f881e3ff w1g1 is connected to a modem by an RJ45<-Serial cable and the modem is connected to the phone line. The modem is a NOKIA DNT2Mi you can see it here Routing table : 192.168.2.0/24 dev eth0 proto kernel scope link src 192.168.2.254 169.254.0.0/16 dev eth0 scope link default via 192.168.2.180 dev eth0

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• Centos VM serving multiple public IP: how to configure network interface?

  - by Glasnhost

  I have a Centos 5.6 VM (Vsphere client) already responding to two different public IPs on eth0 and eth0:1 and I'm trying to add eth0:2. I copied the eth0 config file and restarted the network service. I don't understand which other steps are needed... ifconfig eth0 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.10 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:163371837 errors:77 dropped:0 overruns:0 frame:0 TX packets:168210961 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1891221045 (1.7 GiB) TX bytes:855899500 (816.2 MiB) Interrupt:59 Base address:0x2000 eth0:1 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.11 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000 eth0:2 Link encap:Ethernet HWaddr 00:40:46:B9:00:41 inet addr:10.1.12.12 Bcast:10.1.12.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:59 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:188976973 errors:0 dropped:0 overruns:0 frame:0 TX packets:188976973 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2015642664 (1.8 GiB) TX bytes:2015642664 (1.8 GiB) more /etc/resolv.conf nameserver 10.1.12.1 route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.1.12.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 10.1.12.1 0.0.0.0 UG 0 0 0 eth0

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• No outbound internet connection after restarting CentOS 6.3

  - by wnstnsmth

  After restarting a headless CentOS 6.3 machine, it lost outbound internet connectivity, i.e. I can still connect to the server via SSH (ssh root@**.126.18.56), but stuff such as ping google.com gives google.com: unknown host, and yum list some_package gives a lot of network errors. This is what ifconfig gives: eth0 Link encap:Ethernet HWaddr 00:25:90:78:2D:5D inet addr:**.126.18.56 Bcast:**.126.18.255 Mask:255.255.255.0 inet6 addr: fe80::225:90ff:fe78:2d5d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:75594 errors:0 dropped:0 overruns:0 frame:0 TX packets:787 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:7074741 (6.7 MiB) TX bytes:144391 (141.0 KiB) Interrupt:20 Memory:f7a00000-f7a20000 eth1 Link encap:Ethernet HWaddr 00:25:90:78:2D:5C UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:16 Memory:f7900000-f7920000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:6 errors:0 dropped:0 overruns:0 frame:0 TX packets:6 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:504 (504.0 b) TX bytes:504 (504.0 b) I have absolutely no clue how to debug this, and I find it very strange since I can still connect via ssh. EDIT: Weirdly, /etc/resolv.conf does not contain any entries, or none that I can make sense of: # Generated by NetworkManager search sui-inter.net # No nameservers found; try putting DNS servers into your # ifcfg files in /etc/sysconfig/network-scripts like so: # # DNS1=xxx.xxx.xxx.xxx # DNS2=xxx.xxx.xxx.xxx # DOMAIN=lab.foo.com bar.foo.com So is it possible that rebooting the server erased that file? It worked before at least! And how do I solve this? By the way, pinging an IP address works.

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• Folder with files shows as empty

  - by ProfKaos

  Last night I create a new project in Visual Studio 2010, in the folder c:\development\hobby\devices. When I navigate to that folder in a new instance of Windows Explorer, I get the 'This folder is empty.' message in the files pane. If I then, from within Visual Studio, issue the "Open containing folder command", explorer opens to the folder c:\development\hobby\devices\LoopBack, where loopback is a project under the main folder. If I paste that path into another new instance of explorer, explorer correctly opens c:\development\hobby\devices. How is this possible? SOLVED: This is what comes of typing paths instead of selecting them. Some elementary detective work yielded the following interesting results: C:\>dir dev*. Volume in drive C is OS Volume Serial Number is E4B4-0563 Directory of C:\ 2010/11/28 09:20 PM <DIR> Development 2010/12/01 08:57 PM <DIR> Develpment 2010/11/02 06:31 PM <DIR> DevTools 0 File(s) 0 bytes 3 Dir(s) 63 965 368 320 bytes free Where my disappearing project was in the badly spelt one.

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• Linux: Three default gateways?

  - by Daniel

  My server has three default gateways, how can that be? Shouldn't there be one default gw? I have three NICs, each attached to a separate subnet: server1:~# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.5.0.0 * 255.255.255.224 U 0 0 0 eth3 localnet * 255.255.255.224 U 0 0 0 eth0 192.168.8.0 * 255.255.255.192 U 0 0 0 eth1 default 10.5.0.1 0.0.0.0 UG 0 0 0 eth3 default 192.168.8.1 0.0.0.0 UG 0 0 0 eth1 default 10.1.0.1 0.0.0.0 UG 0 0 0 eth0 Sometimes, I can't ping a host on the Internet, sometimes I can. What I want is traffic to the Internet (0.0.0.0) routed through a specific NIC. Can I just add a route for 0.0.0.0 and default gw to one of the eth0-3 interfaces? Will it break my connection? I'm using Debian, here is my /etc/network/interfaces: # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface allow-hotplug eth0 iface eth0 inet static address 10.1.0.4 netmask 255.255.255.224 network 10.1.0.0 broadcast 10.1.0.31 gateway 10.1.0.1 allow-hotplug eth1 iface eth1 inet static address 192.168.8.4 netmask 255.255.255.192 network 192.168.8.0 broadcast 192.168.8.63 gateway 192.168.8.1 allow-hotplug eth3 iface eth3 inet static address 10.5.0.4 netmask 255.255.255.224 network 10.5.0.0 broadcast 10.5.0.31 gateway 10.5.0.1

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• User Group Policy in Server 2008 to set Default Profile settings

  - by Chris

  I have computers to deploy and want to apply changes to the default user policy on these PCs automatically. What's the best way to do this? Our current procedure is: Create the computer account in an OU called "Deployment" on our server Unbox the PC Login as the user who will be receiving the PC Change settings (pre-configure outlook, authorize Office, etc.) move computer account to correct OU Place the PC on the users desk. I would like to make as many of the changes in step #4 with Group Policies applied to the Deployment OU if possible since they're largely repeated for every computer. There are a dozen policies created and the computer ones apply correctly but the user policies do not. I understand this is because the end user is not in our "Deployment" OU. I don't want to apply these settings to the user at their current station just the new PC I'm working on. I believe I have the desired effect with Group Policy Loopback Replace enabled on policies that need user policies changed but this just feels wrong/inefficient/complicated to maintain. Am I doing this correctly? Is Group Policy Loopback the only way to change user accounts on one computer? What do you do to setup a user on a new PC?

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• Xen HVM Windows 2008 network bridge

  - by JavierMartinz

  I have a problem with the Windows Server 2008 guest (hvm). I can't get a network interface running for him. I also have a Debian guest and it's working ok, but I can't do it with the Win2k8 guest. When I started the VM, the machine freezes and I can't connect by ssh to the host. /etc/network/interfaces # The loopback network interface auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 188.165.B.C netmask 255.255.255.0 network 188.165.B.0 broadcast 188.165.255.255 gateway 188.165.B.254 brctl show bridge name bridge id STP enabled interfaces eth0 8000.e840f20acc28 no peth0 /etc/xen/xend-config.sxp ... (vif-script vif-bridge) (network-script 'network-bridge') ... /etc/xen/win2k8.cfg # Networking # vif = [ 'ip=5.39.F.G,mac=yy:yy:yy:yy:yy:yy,type=ioemu,bridge=eth0' ] /etc/xen/debian.cfg # Networking # vif = [ 'ip=178.33.D.E,mac=xx:xx:xx:xx:xx:xx' ] As you can see, in the Debian guest I only have to specify an IP address and a MAC. But if I put that in the Win2k8 guest, the machine does not start. I am using Xen 4.0

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• Linux IPTables / routing issue

  - by Jon

  Hi all, EDIT 1/3/10 22:00 GMT - rewrote some of it after further investigation It has been a while since I looked at IPtables and I seem to be worse than before as I can not seem to get my webserver online. Below is my firewall rules on the gateway server that is running the dhcp server accessing the net. The webserver is inside my network on a static IP (192.168.0.98, default port). When I use Nmap or GRC.com I see that port 80 is open on the gateway server but when I browse to it, (via public URL. http://www.houseofhawkins.com) it always fails with a connection error, (nmap cannot connect and figure out what the web server is either). I can nmap the webserver and browse to it just fine via same IP inside my network. I believe it is my IPTable rules that are not letting it through. Internally I can route all my requests. Each machine can browse to the website and traffic works just fine. I can MSTSC / ssh to all the webservers internally and they inturn can connect to the web. IPTABLE: *EDIT - Added new firewall rules 2/3/10 * #!/bin/sh iptables="/sbin/iptables" modprobe="/sbin/modprobe" depmod="/sbin/depmod" EXTIF="eth2" INTIF="eth1" load () { $depmod -a $modprobe ip_tables $modprobe ip_conntrack $modprobe ip_conntrack_ftp $modprobe ip_conntrack_irc $modprobe iptable_nat $modprobe ip_nat_ftp echo "enable forwarding.." echo "1" > /proc/sys/net/ipv4/ip_forward echo "enable dynamic addr" echo "1" > /proc/sys/net/ipv4/ip_dynaddr # start firewall # default policies $iptables -P INPUT DROP $iptables -F INPUT $iptables -P OUTPUT DROP $iptables -F OUTPUT $iptables -P FORWARD DROP $iptables -F FORWARD $iptables -t nat -F #echo " Opening loopback interface for socket based services." $iptables -A INPUT -i lo -j ACCEPT $iptables -A OUTPUT -o lo -j ACCEPT #echo " Allow all connections OUT and only existing and related ones IN" $iptables -A INPUT -i $INTIF -j ACCEPT $iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT $iptables -A OUTPUT -o $EXTIF -j ACCEPT $iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT $iptables -A FORWARD -i $EXTIF -o $INTIF -m state --state ESTABLISHED,RELATED -j ACCEPT $iptables -A FORWARD -i $INTIF -o $EXTIF -j ACCEPT $iptables -A FORWARD -j LOG --log-level 7 --log-prefix "Dropped by firewall: " $iptables -A INPUT -j LOG --log-level 7 --log-prefix "Dropped by firewall: " $iptables -A OUTPUT -j LOG --log-level 7 --log-prefix "Dropped by firewall: " #echo " Enabling SNAT (MASQUERADE) functionality on $EXTIF" $iptables -t nat -A POSTROUTING -o $EXTIF -j MASQUERADE $iptables -A INPUT -i $INTIF -j ACCEPT $iptables -A OUTPUT -o $INTIF -j ACCEPT #echo " Allowing packets with ICMP data (i.e. ping)." $iptables -A INPUT -p icmp -j ACCEPT $iptables -A OUTPUT -p icmp -j ACCEPT $iptables -A INPUT -p udp -i $INTIF --dport 67 -m state --state NEW -j ACCEPT #echo " Port 137 is for NetBIOS." $iptables -A INPUT -i $INTIF -p udp --dport 137 -j ACCEPT $iptables -A OUTPUT -o $INTIF -p udp --dport 137 -j ACCEPT #echo " Opening port 53 for DNS queries." $iptables -A INPUT -p udp -i $EXTIF --sport 53 -j ACCEPT #echo " opening Apache webserver" $iptables -A PREROUTING -t nat -i $EXTIF -p tcp --dport 80 -j DNAT --to 192.168.0.96:80 $iptables -A FORWARD -p tcp -m state --state NEW -d 192.168.0.96 --dport 80 -j ACCEPT } flush () { echo "flushing rules..." $iptables -P FORWARD ACCEPT $iptables -F INPUT $iptables -P INPUT ACCEPT echo "rules flushed" } case "$1" in start|restart) flush load ;; stop) flush ;; *) echo "usage: start|stop|restart." ;; esac exit 0 route info: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 5e0412a6.bb.sky * 255.255.255.255 UH 0 0 0 eth2 192.168.0.0 * 255.255.255.0 U 0 0 0 eth1 default 5e0412a6.bb.sky 0.0.0.0 UG 100 0 0 eth2 ifconfig: eth1 Link encap:Ethernet HWaddr 00:22:b0:cf:4a:1c inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::222:b0ff:fecf:4a1c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:79023 errors:0 dropped:0 overruns:0 frame:0 TX packets:57786 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:11580918 (11.5 MB) TX bytes:22872030 (22.8 MB) Interrupt:17 Base address:0x2b00 eth2 Link encap:Ethernet HWaddr 00:0c:f1:7c:45:5b inet addr:94.4.18.166 Bcast:94.4.18.166 Mask:255.255.255.255 inet6 addr: fe80::20c:f1ff:fe7c:455b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:57038 errors:0 dropped:0 overruns:0 frame:0 TX packets:34532 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:21631721 (21.6 MB) TX bytes:7685444 (7.6 MB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:16 errors:0 dropped:0 overruns:0 frame:0 TX packets:16 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1517 (1.5 KB) TX bytes:1517 (1.5 KB) EDIT OK so as requested I will try and expand on my infrastructure: I previously had it setup with a Sky broadband modem router that did the DHCP and I used its web interface to port forward the web across to the web server. The network looked something like this: I have now replaced the sky modem with a dlink modem which gives the IP to the gateway server that now does the DHCP. It looks like: The internet connection is a standard broadband connection with a dynamic IP, (use zoneedit.com to keep it updated). I have tried it on each of the webservers(one Ubuntu Apache server and one WS2008 IIS7). I think there must also be an issue with my IPTable rules as it can route to my win7 box which has the default IIS7 page and that would not display when I forwarded all port 80 to it. I would be really grateful for any and all help with this. Thanks Jon

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• Connection drops while transferring large files to one server on a network

  - by Charlotte

  My company has two sites, each with their own LAN, using site to site VPN tunnel to connect the two sites. When transferring files (especially larger files) from site1 to site2 server1, the file transfer fails. I don't think this can be a VPN issue because transferring the same files to site2 server2 which is on the same network as server1 works fine. Pings to server1 and server2 at site2 from site1 are about the same, mostly 19/20ms with the odd one up to 50ms. As server1 is DB server with a high load I thought the NIC maybe overloaded, but a transfer from site2 server1 to site2 server2 works fine, and that uses the same NIC on server1 as transfers from site1 to site2 server1. The servers are both Windows Server 2003 VMs with VMXNET 3 NICs. Site2 Server1 route print: IPv4 Route Table =========================================================================== Interface List 0x1 ........................... MS TCP Loopback interface 0x10003 ...00 50 56 99 28 9b ...... vmxnet3 Ethernet Adapter #2 0x10004 ...00 50 56 99 18 97 ...... vmxnet3 Ethernet Adapter =========================================================================== =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 172.20.10.1 172.20.10.18 10 10.10.10.0 255.255.255.0 10.10.10.70 10.10.10.70 10 10.10.10.70 255.255.255.255 127.0.0.1 127.0.0.1 10 10.255.255.255 255.255.255.255 10.10.10.70 10.10.10.70 10 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 172.20.10.0 255.255.255.0 172.20.10.18 172.20.10.18 10 172.20.10.18 255.255.255.255 127.0.0.1 127.0.0.1 10 172.20.255.255 255.255.255.255 172.20.10.18 172.20.10.18 10 224.0.0.0 240.0.0.0 10.10.10.70 10.10.10.70 10 224.0.0.0 240.0.0.0 172.20.10.18 172.20.10.18 10 255.255.255.255 255.255.255.255 10.10.10.70 10.10.10.70 1 255.255.255.255 255.255.255.255 172.20.10.18 172.20.10.18 1 Default Gateway: 172.20.10.1 =========================================================================== Persistent Routes: None Site2 Server2 route print IPv4 Route Table =========================================================================== Interface List 0x1 ........................... MS TCP Loopback interface 0x10003 ...00 50 56 99 15 00 ...... vmxnet3 Ethernet Adapter =========================================================================== =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 172.20.10.1 172.20.10.114 10 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 172.20.10.0 255.255.255.0 172.20.10.114 172.20.10.114 10 172.20.10.114 255.255.255.255 127.0.0.1 127.0.0.1 10 172.20.255.255 255.255.255.255 172.20.10.114 172.20.10.114 10 224.0.0.0 240.0.0.0 172.20.10.114 172.20.10.114 10 255.255.255.255 255.255.255.255 172.20.10.114 172.20.10.114 1 Default Gateway: 172.20.10.1 =========================================================================== Persistent Routes: None Site1 Server route print: =========================================================================== Interface List 14...00 50 56 93 00 0b ......vmxnet3 Ethernet Adapter #2 1...........................Software Loopback Interface 1 12...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter 13...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface =========================================================================== IPv4 Route Table =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 192.168.168.1 192.168.168.118 261 127.0.0.0 255.0.0.0 On-link 127.0.0.1 306 127.0.0.1 255.255.255.255 On-link 127.0.0.1 306 127.255.255.255 255.255.255.255 On-link 127.0.0.1 306 192.168.168.0 255.255.255.0 On-link 192.168.168.118 261 192.168.168.118 255.255.255.255 On-link 192.168.168.118 261 192.168.168.255 255.255.255.255 On-link 192.168.168.118 261 224.0.0.0 240.0.0.0 On-link 127.0.0.1 306 224.0.0.0 240.0.0.0 On-link 192.168.168.118 261 255.255.255.255 255.255.255.255 On-link 127.0.0.1 306 255.255.255.255 255.255.255.255 On-link 192.168.168.118 261 =========================================================================== Persistent Routes: Network Address Netmask Gateway Address Metric 0.0.0.0 0.0.0.0 192.168.168.1 Default =========================================================================== IPv6 Route Table =========================================================================== Active Routes: If Metric Network Destination Gateway 1 306 ::1/128 On-link 14 261 fe80::/64 On-link 14 261 fe80::3c6b:996f:ef36:ee76/128 On-link 1 306 ff00::/8 On-link 14 261 ff00::/8 On-link =========================================================================== Persistent Routes: None tracert from site1 to site2 server1: Tracing route to server1 [172.20.10.18] over a maximum of 30 hops: 1 19 ms 19 ms 19 ms server1 [172.20.10.18] Trace complete. tracert from site2 server1 to site1: When this was run it went to the external IP of site2, then to a couple of external ips of the isp, then times out. Can anyone suggest any troubleshooting steps? Thanks, Charlotte.

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• NMap route determination on Windows 7 x64

  - by user30772

  C:\Windows\system32>nmap --iflist Starting Nmap 6.01 ( http://nmap.org ) at 2012-08-31 06:51 Central Daylight Time ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MTU MAC eth0 (eth0) fe80::797f:b9b6:3ee0:27b8/64 ethernet down 1500 5C:AC:4C:E9:2D:46 eth0 (eth0) 169.254.39.184/4 ethernet down 1500 5C:AC:4C:E9:2D:46 eth1 (eth1) fe80::5c02:7e48:8fbe:c7c9/64 ethernet down 1500 00:FF:3F:7C:7C:2B eth1 (eth1) 169.254.199.201/4 ethernet down 1500 00:FF:3F:7C:7C:2B eth2 (eth2) fe80::74e4:1ab7:1b7d:a0d0/64 ethernet up 1500 14:FE:B5:BA:8A:C3 eth2 (eth2) 10.0.0.0.253/24 ethernet up 1500 14:FE:B5:BA:8A:C3 eth3 (eth3) fe80::b03e:ddf5:bb5c:5f76/64 ethernet up 1500 00:50:56:C0:00:01 eth3 (eth3) 169.254.95.118/16 ethernet up 1500 00:50:56:C0:00:01 eth4 (eth4) fe80::b175:831d:e60:27b/64 ethernet up 1500 00:50:56:C0:00:08 eth4 (eth4) 192.168.153.1/24 ethernet up 1500 00:50:56:C0:00:08 lo0 (lo0) ::1/128 loopback up -1 lo0 (lo0) 127.0.0.1/8 loopback up -1 tun0 (tun0) fe80::100:7f:fffe/64 point2point down 1280 tun1 (tun1) (null)/0 point2point down 1280 tun2 (tun2) fe80::5efe:a9fe:5f76/128 point2point down 1280 tun3 (tun3) (null)/0 point2point down 1280 tun4 (tun4) fe80::5efe:c0a8:9901/128 point2point down 1280 tun5 (tun5) fe80::5efe:ac14:fd/128 point2point down 1280 DEV WINDEVICE eth0 \Device\NPF_{0024872A-5A41-42DF-B484-FB3D3ED3FCE9} eth0 \Device\NPF_{0024872A-5A41-42DF-B484-FB3D3ED3FCE9} eth1 \Device\NPF_{3F7C7C2B-9AF3-45BB-B96E-2F00143CC2F7} eth1 \Device\NPF_{3F7C7C2B-9AF3-45BB-B96E-2F00143CC2F7} eth2 \Device\NPF_{08116FE5-F0FF-498A-9BF1-515528C57C13} eth2 \Device\NPF_{08116FE5-F0FF-498A-9BF1-515528C57C13} eth3 \Device\NPF_{AA83C6CE-AB2E-4764-92D1-CDEAFBA7AD21} eth3 \Device\NPF_{AA83C6CE-AB2E-4764-92D1-CDEAFBA7AD21} eth4 \Device\NPF_{D0679889-E9D4-411D-BDC5-F4DDB758E151} eth4 \Device\NPF_{D0679889-E9D4-411D-BDC5-F4DDB758E151} lo0 <none> lo0 <none> tun0 <none> tun1 <none> tun2 <none> tun3 <none> tun4 <none> tun5 <none> **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.153.255/32 eth0 255.255.255.255/32 eth0 255.255.255.255/32 eth0 127.0.0.1/32 eth0 127.255.255.255/32 eth0 255.255.255.255/32 eth0 169.254.95.118/32 eth0 169.254.255.255/32 eth0 10.0.0.0.253/32 eth0 255.255.255.255/32 eth0 10.0.0.0.255/32 eth0 255.255.255.255/32 eth0 192.168.153.1/32 eth0 255.255.255.255/32 eth0 10.0.0.0.0/24 eth0 192.168.153.0/24 eth0 10.10.10.0/24 eth0 10.0.0.0.4 169.254.0.0/16 eth0 127.0.0.0/8 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 0.0.0.0/0 eth0 10.0.0.0.1 JMeterX - I worded that way in hopes of raising answer efficnecy, but that probably wasnt the smartest choice. IMHO the problem (could be a symptom) is that nmap retardedly chooses eth0 as the gateway interface for any and all networks. Here's the result: C:\Windows\system32>nmap 10.0.0.55 Starting Nmap 6.01 ( http://nmap.org ) at 2012-08-31 07:43 Central Daylight Time Note: Host seems down. If it is really up, but blocking our ping probes, try -Pn Nmap done: 1 IP address (0 hosts up) scanned in 0.95 seconds C:\Windows\system32>nmap -e eth2 10.0.0.55 Starting Nmap 6.01 ( http://nmap.org ) at 2012-08-31 07:44 Central Daylight Time Nmap scan report for esxy5.dionne.net (10.0.0.55) Host is up (0.00070s latency). Not shown: 991 filtered ports PORT STATE SERVICE 22/tcp open ssh 80/tcp open http 427/tcp open svrloc 443/tcp open https 902/tcp open iss-realsecure 5988/tcp closed wbem-http 5989/tcp open wbem-https 8000/tcp open http-alt 8100/tcp open xprint-server MAC Address: 00:1F:29:59:C7:03 (Hewlett-Packard Company) Nmap done: 1 IP address (1 host up) scanned in 5.29 seconds Just to be clear, this is what makes absolutly no sense to me whatsoever. For reference, I've included similar info from an Ubuntu (that works normally) vm on the affected host below. Jacked Windows 7 **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.153.255/32 eth0 255.255.255.255/32 eth0 255.255.255.255/32 eth0 127.0.0.1/32 eth0 127.255.255.255/32 eth0 255.255.255.255/32 eth0 169.254.95.118/32 eth0 169.254.255.255/32 eth0 10.0.0.0.253/32 eth0 255.255.255.255/32 eth0 10.0.0.0.255/32 eth0 255.255.255.255/32 eth0 192.168.153.1/32 eth0 255.255.255.255/32 eth0 10.0.0.0.0/24 eth0 192.168.153.0/24 eth0 10.10.10.0/24 eth0 10.0.0.0.4 169.254.0.0/16 eth0 127.0.0.0/8 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 224.0.0.0/4 eth0 0.0.0.0/0 eth0 10.0.0.0.1 Working Ubuntu VM root@ubuntu:~# nmap --iflist Starting Nmap 5.21 ( http://nmap.org ) at 2012-08-31 07:44 PDT ************************INTERFACES************************ DEV (SHORT) IP/MASK TYPE UP MAC lo (lo) 127.0.0.1/8 loopback up eth0 (eth0) 172.20.0.89/24 ethernet up 00:0C:29:0A:C9:35 eth1 (eth1) 192.168.225.128/24 ethernet up 00:0C:29:0A:C9:3F eth2 (eth2) 192.168.150.128/24 ethernet up 00:0C:29:0A:C9:49 **************************ROUTES************************** DST/MASK DEV GATEWAY 192.168.225.0/0 eth1 192.168.150.0/0 eth2 172.20.0.0/0 eth0 169.254.0.0/0 eth0 0.0.0.0/0 eth0 172.20.0.1 root@ubuntu:~# nmap esxy2 Starting Nmap 5.21 ( http://nmap.org ) at 2012-08-31 07:44 PDT Nmap scan report for esxy2 (172.20.0.52) Host is up (0.00036s latency). rDNS record for 172.20.0.52: esxy2.dionne.net Not shown: 994 filtered ports PORT STATE SERVICE 80/tcp open http 427/tcp closed svrloc 443/tcp open https 902/tcp closed iss-realsecure 8000/tcp open http-alt 8100/tcp open unknown MAC Address: 00:04:23:B1:FA:6A (Intel) Nmap done: 1 IP address (1 host up) scanned in 4.76 seconds

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• Is Multicast broken for Android 2.0.1 (currently on the DROID) or am I missing something?

  - by Gubatron

  This code works perfectly in Ubuntu, in Windows and MacOSX, it also works fine with a Nexus-One currently running firmware 2.1.1. I start sending and listening multicast datagrams, and all the computers and the Nexus-One will see each other perfectly. Then I run the same code on a Droid (Firmware 2.0.1), and everybody will get the packets sent by the Droid, but the droid will listen only to it's own packets. This is the run() method of a thread that's constantly listening on a Multicast group for incoming packets sent to that group. I'm running my tests on a local network where I have multicast support enabled in the router. My goal is to have devices meet each other as they come on line by broadcasting packages to a multicast group. public void run() { byte[] buffer = new byte[65535]; DatagramPacket dp = new DatagramPacket(buffer, buffer.length); try{ MulticastSocket ms = new MulticastSocket(_port); ms.setNetworkInterface(_ni); //non loopback network interface passed ms.joinGroup(_ia); //the multicast address, currently 224.0.1.16 Log.v(TAG,"Joined Group " + _ia); while (true) { ms.receive(dp); String s = new String(dp.getData(),0,dp.getLength()); Log.v(TAG,"Received Package on "+ _ni.getName() +": " + s); Message m = new Message(); Bundle b = new Bundle(); b.putString("event", "Listener ("+_ni.getName()+"): \"" + s + "\""); m.setData(b); dispatchMessage(m); //send to ui thread } } catch (SocketException se) { System.err.println(se); } catch (IOException ie) { System.err.println(ie); } } Over here, is the code that sends the Multicast Datagram out of every valid network interface available (that's not the loopback interface). public void sendPing() { MulticastSocket ms = null; try { ms = new MulticastSocket(_port); ms.setTimeToLive(TTL_GLOBAL); List<NetworkInterface> interfaces = getMulticastNonLoopbackNetworkInterfaces(); for (NetworkInterface iface : interfaces) { //skip loopback if (iface.getName().equals("lo")) continue; ms.setNetworkInterface(iface); _buffer = ("FW-"+ _name +" PING ("+iface.getName()+":"+iface.getInetAddresses().nextElement()+")").getBytes(); DatagramPacket dp = new DatagramPacket(_buffer, _buffer.length,_ia,_port); ms.send(dp); Log.v(TAG,"Announcer: Sent packet - " + new String(_buffer) + " from " + iface.getDisplayName()); } } catch (IOException e) { e.printStackTrace(); } catch (Exception e2) { e2.printStackTrace(); } } Update (April 2nd 2010) I found a way to have the Droid's network interface to communicate using Multicast! _wifiMulticastLock = ((WifiManager) context.getSystemService(Context.WIFI_SERVICE)).createMulticastLock("multicastLockNameHere"); _wifiMulticastLock.acquire(); Then when you're done... if (_wifiMulticastLock != null && _wifiMulticastLock.isHeld()) _wifiMulticastLock.release(); After I did this, the Droid started sending and receiving UDP Datagrams on a Multicast group. gubatron

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• Linux router: ping doesn't route back

  - by El Barto

  I have a Debian box which I'm trying to set up as a router and an Ubuntu box which I'm using as a client. My problem is that when the Ubuntu client tries to ping a server on the Internet, all the packets are lost (though, as you can see below, they seem to go to the server and back without problem). I'm doing this in the Ubuntu Box: # ping -I eth1 my.remote-server.com PING my.remote-server.com (X.X.X.X) from 10.1.1.12 eth1: 56(84) bytes of data. ^C --- my.remote-server.com ping statistics --- 13 packets transmitted, 0 received, 100% packet loss, time 12094ms (I changed the name and IP of the remote server for privacy). From the Debian Router I see this: # tcpdump -i eth1 -qtln icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 305, seq 7, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 305, seq 8, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 305, seq 8, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 305, seq 9, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 305, seq 9, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 305, seq 10, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 305, seq 10, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 305, seq 11, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 305, seq 11, length 64 ^C 9 packets captured 9 packets received by filter 0 packets dropped by kernel # tcpdump -i eth2 -qtln icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth2, link-type EN10MB (Ethernet), capture size 65535 bytes IP 192.168.1.10 > X.X.X.X: ICMP echo request, id 360, seq 213, length 64 IP X.X.X.X > 192.168.1.10: ICMP echo reply, id 360, seq 213, length 64 IP 192.168.1.10 > X.X.X.X: ICMP echo request, id 360, seq 214, length 64 IP X.X.X.X > 192.168.1.10: ICMP echo reply, id 360, seq 214, length 64 IP 192.168.1.10 > X.X.X.X: ICMP echo request, id 360, seq 215, length 64 IP X.X.X.X > 192.168.1.10: ICMP echo reply, id 360, seq 215, length 64 IP 192.168.1.10 > X.X.X.X: ICMP echo request, id 360, seq 216, length 64 IP X.X.X.X > 192.168.1.10: ICMP echo reply, id 360, seq 216, length 64 IP 192.168.1.10 > X.X.X.X: ICMP echo request, id 360, seq 217, length 64 IP X.X.X.X > 192.168.1.10: ICMP echo reply, id 360, seq 217, length 64 ^C 10 packets captured 10 packets received by filter 0 packets dropped by kernel And at the remote server I see this: # tcpdump -i eth0 -qtln icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 1, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 1, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 2, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 2, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 3, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 3, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 4, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 4, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 5, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 5, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 6, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 6, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 7, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 7, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 8, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 8, length 64 IP Y.Y.Y.Y > X.X.X.X: ICMP echo request, id 360, seq 9, length 64 IP X.X.X.X > Y.Y.Y.Y: ICMP echo reply, id 360, seq 9, length 64 18 packets captured 228 packets received by filter 92 packets dropped by kernel Here "X.X.X.X" is my remote server's IP and "Y.Y.Y.Y" is my local network's public IP. So, what I understand is that the ping packets are coming out of the Ubuntu box (10.1.1.12), to the router (10.1.1.1), from there to the next router (192.168.1.1) and reaching the remote server (X.X.X.X). Then they come back all the way to the Debian router, but they never reach the Ubuntu box back. What am I missing? Here's the Debian router setup: # ifconfig eth1 Link encap:Ethernet HWaddr 94:0c:6d:82:0d:98 inet addr:10.1.1.1 Bcast:10.1.1.255 Mask:255.255.255.0 inet6 addr: fe80::960c:6dff:fe82:d98/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:105761 errors:0 dropped:0 overruns:0 frame:0 TX packets:48944 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:40298768 (38.4 MiB) TX bytes:44831595 (42.7 MiB) Interrupt:19 Base address:0x6000 eth2 Link encap:Ethernet HWaddr 6c:f0:49:a4:47:38 inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::6ef0:49ff:fea4:4738/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:38335992 errors:0 dropped:0 overruns:0 frame:0 TX packets:37097705 errors:0 dropped:0 overruns:0 carrier:1 collisions:0 txqueuelen:1000 RX bytes:4260680226 (3.9 GiB) TX bytes:3759806551 (3.5 GiB) Interrupt:27 eth3 Link encap:Ethernet HWaddr 94:0c:6d:82:c8:72 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:20 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:3408 errors:0 dropped:0 overruns:0 frame:0 TX packets:3408 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:358445 (350.0 KiB) TX bytes:358445 (350.0 KiB) tun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:10.8.0.1 P-t-P:10.8.0.2 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1 RX packets:2767779 errors:0 dropped:0 overruns:0 frame:0 TX packets:1569477 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:3609469393 (3.3 GiB) TX bytes:96113978 (91.6 MiB) # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.8.0.2 0.0.0.0 255.255.255.255 UH 0 0 0 tun0 127.0.0.1 0.0.0.0 255.255.255.255 UH 0 0 0 lo 10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0 192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth2 10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth2 # arp -n # Note: Here I have changed all the different MACs except the ones corresponding to the Ubuntu box (on 10.1.1.12 and 192.168.1.12) Address HWtype HWaddress Flags Mask Iface 192.168.1.118 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.72 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.94 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.102 ether NN:NN:NN:NN:NN:NN C eth2 10.1.1.12 ether 00:1e:67:15:2b:f0 C eth1 192.168.1.86 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.2 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.61 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.64 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.116 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.91 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.52 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.93 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.87 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.92 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.100 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.40 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.53 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.1 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.83 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.89 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.12 ether 00:1e:67:15:2b:f1 C eth2 192.168.1.77 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.66 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.90 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.65 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.41 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.78 ether NN:NN:NN:NN:NN:NN C eth2 192.168.1.123 ether NN:NN:NN:NN:NN:NN C eth2 # iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # iptables -L -n -t nat Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination MASQUERADE all -- 10.1.1.0/24 !10.1.1.0/24 MASQUERADE all -- !10.1.1.0/24 10.1.1.0/24 Chain OUTPUT (policy ACCEPT) target prot opt source destination And here's the Ubuntu box: # ifconfig eth0 Link encap:Ethernet HWaddr 00:1e:67:15:2b:f1 inet addr:192.168.1.12 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::21e:67ff:fe15:2bf1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:28785139 errors:0 dropped:0 overruns:0 frame:0 TX packets:19050735 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:32068182803 (32.0 GB) TX bytes:6061333280 (6.0 GB) Interrupt:16 Memory:b1a00000-b1a20000 eth1 Link encap:Ethernet HWaddr 00:1e:67:15:2b:f0 inet addr:10.1.1.12 Bcast:10.1.1.255 Mask:255.255.255.0 inet6 addr: fe80::21e:67ff:fe15:2bf0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:285086 errors:0 dropped:0 overruns:0 frame:0 TX packets:12719 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:30817249 (30.8 MB) TX bytes:2153228 (2.1 MB) Interrupt:16 Memory:b1900000-b1920000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:86048 errors:0 dropped:0 overruns:0 frame:0 TX packets:86048 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:11426538 (11.4 MB) TX bytes:11426538 (11.4 MB) # route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 0.0.0.0 10.1.1.1 0.0.0.0 UG 100 0 0 eth1 10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 10.8.0.0 192.168.1.10 255.255.255.0 UG 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0 # arp -n # Note: Here I have changed all the different MACs except the ones corresponding to the Debian box (on 10.1.1.1 and 192.168.1.10) Address HWtype HWaddress Flags Mask Iface 192.168.1.70 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.90 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.97 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.103 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.13 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.120 (incomplete) eth0 192.168.1.111 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.118 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.51 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.102 (incomplete) eth0 192.168.1.64 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.52 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.74 (incomplete) eth0 192.168.1.94 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.121 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.72 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.87 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.91 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.71 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.78 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.83 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.88 (incomplete) eth0 192.168.1.82 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.98 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.100 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.93 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.73 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.11 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.85 (incomplete) eth0 192.168.1.112 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.89 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.65 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.81 ether NN:NN:NN:NN:NN:NN C eth0 10.1.1.1 ether 94:0c:6d:82:0d:98 C eth1 192.168.1.53 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.116 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.61 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.10 ether 6c:f0:49:a4:47:38 C eth0 192.168.1.86 (incomplete) eth0 192.168.1.119 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.66 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.1 ether NN:NN:NN:NN:NN:NN C eth0 192.168.1.1 ether NN:NN:NN:NN:NN:NN C eth1 192.168.1.92 ether NN:NN:NN:NN:NN:NN C eth0 # iptables -L -n Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination # iptables -L -n -t nat Chain PREROUTING (policy ACCEPT) target prot opt source destination Chain INPUT (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain POSTROUTING (policy ACCEPT) target prot opt source destination Edit: Following Patrick's suggestion, I did a tcpdump con the Ubuntu box and I see this: # tcpdump -i eth1 -qtln icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 21967, seq 1, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 21967, seq 1, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 21967, seq 2, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 21967, seq 2, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 21967, seq 3, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 21967, seq 3, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 21967, seq 4, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 21967, seq 4, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 21967, seq 5, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 21967, seq 5, length 64 IP 10.1.1.12 > X.X.X.X: ICMP echo request, id 21967, seq 6, length 64 IP X.X.X.X > 10.1.1.12: ICMP echo reply, id 21967, seq 6, length 64 ^C 12 packets captured 12 packets received by filter 0 packets dropped by kernel So the question is: if all packets seem to be coming and going, why does ping report 100% packet loss?

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• Networking- Wireless and Wired not working

  - by JJ White

  So everything in Ubuntu has been working great until networking stopped working. I've spent the better part of two days scouring for a fix with no luck. Here is my info...your help would so be appreciated. grep -i eth /var/log/syslog | tail Sep 25 16:31:59 jj-laptop NetworkManager[970]: <info> (eth0): cleaning up... Sep 25 16:31:59 jj-laptop NetworkManager[970]: <info> (eth0): taking down device. Sep 25 16:31:59 jj-laptop kernel: [23403.998837] sky2 0000:02:00.0: eth0: disabling interface Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): now managed Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2] Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): bringing up device. Sep 25 16:35:54 jj-laptop kernel: [23413.629424] sky2 0000:02:00.0: eth0: enabling interface Sep 25 16:35:54 jj-laptop kernel: [23413.635703] ADDRCONF(NETDEV_UP): eth0: link is not ready Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): preparing device. Sep 25 16:35:54 jj-laptop NetworkManager[970]: <info> (eth0): deactivating device (reason 'managed') [2] and then ifconfig -a eth0 Link encap:Ethernet HWaddr 00:17:42:14:e9:e1 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:4605 errors:0 dropped:0 overruns:0 frame:0 TX packets:287 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:315161 (315.1 KB) TX bytes:63680 (63.6 KB) Interrupt:16 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:13018 errors:0 dropped:0 overruns:0 frame:0 TX packets:13018 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:880484 (880.4 KB) TX bytes:880484 (880.4 KB) wlan0 Link encap:Ethernet HWaddr 00:13:02:d0:ee:13 BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) also iwconfig lo no wireless extensions. wlan0 IEEE 802.11abg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Power Management:on eth0 no wireless extensions. and of course sudo lshw -C network *-network description: Ethernet interface product: 88E8055 PCI-E Gigabit Ethernet Controller vendor: Marvell Technology Group Ltd. physical id: 0 bus info: pci@0000:02:00.0 logical name: eth0 version: 12 serial: 00:17:42:14:e9:e1 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full firmware=N/A latency=0 link=no multicast=yes port=twisted pair speed=1Gbit/s resources: irq:44 memory:f0000000-f0003fff ioport:2000(size=256) memory:c0a00000-c0a1ffff *-network DISABLED description: Wireless interface product: PRO/Wireless 3945ABG [Golan] Network Connection vendor: Intel Corporation physical id: 0 bus info: pci@0000:05:00.0 logical name: wlan0 version: 02 serial: 00:13:02:d0:ee:13 width: 32 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=iwl3945 driverversion=3.2.0-31-generic firmware=15.32.2.9 latency=0 link=no multicast=yes wireless=IEEE 802.11abg resources: irq:45 memory:c0100000-c0100fff last but not least lsmod Module Size Used by nls_iso8859_1 12617 0 nls_cp437 12751 0 vfat 17308 0 fat 55605 1 vfat usb_storage 39646 0 uas 17828 0 dm_crypt 22528 0 rfcomm 38139 0 parport_pc 32114 0 bnep 17830 2 ppdev 12849 0 bluetooth 158438 10 rfcomm,bnep binfmt_misc 17292 1 snd_hda_codec_idt 60251 1 pcmcia 39791 0 joydev 17393 0 snd_hda_intel 32765 3 snd_hda_codec 109562 2 snd_hda_codec_idt,snd_hda_intel snd_hwdep 13276 1 snd_hda_codec snd_pcm 80845 2 snd_hda_intel,snd_hda_codec snd_seq_midi 13132 0 yenta_socket 27428 0 snd_rawmidi 25424 1 snd_seq_midi snd_seq_midi_event 14475 1 snd_seq_midi snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event pcmcia_rsrc 18367 1 yenta_socket wacom_w8001 12906 0 irda 185517 0 arc4 12473 2 iwl3945 73111 0 iwl_legacy 71134 1 iwl3945 mac80211 436455 2 iwl3945,iwl_legacy cfg80211 178679 3 iwl3945,iwl_legacy,mac80211 snd_timer 28931 2 snd_pcm,snd_seq snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq dm_multipath 22710 0 pcmcia_core 21511 3 pcmcia,yenta_socket,pcmcia_rsrc psmouse 96619 0 apanel 12718 0 serport 12808 1 serio_raw 13027 0 crc_ccitt 12595 1 irda mac_hid 13077 0 snd 62064 15 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_t imer,snd_seq_device input_polldev 13648 1 apanel soundcore 14635 1 snd snd_page_alloc 14115 2 snd_hda_intel,snd_pcm lp 17455 0 fujitsu_laptop 18504 0 parport 40930 3 parport_pc,ppdev,lp dm_raid45 76451 0 xor 25987 1 dm_raid45 dm_mirror 21822 0 dm_region_hash 16065 1 dm_mirror dm_log 18193 3 dm_raid45,dm_mirror,dm_region_hash sdhci_pci 18324 0 sdhci 28241 1 sdhci_pci sky2 49545 0 i915 414939 3 drm_kms_helper 45466 1 i915 drm 197692 4 i915,drm_kms_helper i2c_algo_bit 13199 1 i915 video 19068 1 i915

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• how do i fix this: the networking and wireless are enabled. but list of networks under wireless networks not available

  - by Ayesha Ahmad

  i started working with ubuntu 11.10 last year. i upgraded to 12.04 a week back. since then i have had all sorts of problems with network connection. first had to install the new driver. the hardware switch somehow got disabled then the above problem arrived. even tho the options are all enabled, the OS is not able to detect scan available network connections. also i have to bring to notice that once in a while it does get connected, can not explain how it happens. I want to fix this problem once and for all. please help. ifconfig: eth0 Link encap:Ethernet HWaddr f0:4d:a2:51:b3:c8 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:44 eth1 Link encap:Ethernet HWaddr 1c:65:9d:67:d5:e1 inet6 addr: fe80::1e65:9dff:fe67:d5e1/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:170 TX packets:0 errors:27 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:344 errors:0 dropped:0 overruns:0 frame:0 TX packets:344 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:20336 (20.3 KB) TX bytes:20336 (20.3 KB) lshw -c network *-network description: Wireless interface product: BCM4313 802.11b/g/n Wireless LAN Controller vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: eth1 version: 01 serial: 1c:65:9d:67:d5:e1 width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=wl0 driverversion=5.100.82.38 latency=0 multicast=yes wireless=IEEE 802.11 resources: irq:17 memory:f0500000-f0503fff *-network description: Ethernet interface product: AR8152 v1.1 Fast Ethernet vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:04:00.0 logical name: eth0 version: c1 serial: f0:4d:a2:51:b3:c8 capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.0-NAPI firmware=N/A latency=0 multicast=yes port=twisted pair resources: irq:44 memory:f0400000-f043ffff ioport:2000(size=128) iwconfig lo no wireless extensions. eth1 IEEE 802.11 Access Point: Not-Associated Link Quality:5 Signal level:0 Noise level:196 Rx invalid nwid:0 invalid crypt:0 invalid misc:0 eth0 no wireless extensions. lspci 00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 18) 00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 18) 00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06) 00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06) 00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06) 00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06) 00:1c.5 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 6 (rev 06) 00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 06) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6) 00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06) 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06) 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06) 00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 06) 03:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) 04:00.0 Ethernet controller: Atheros Communications Inc. AR8152 v1.1 Fast Ethernet (rev c1) ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 05) ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 05) ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 05) ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 05) ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 05) ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 05) I hope this information is of some help.

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• Wireless is detected, but not connecting. Ethernet works. How to correct the wireless address?

  - by Lucas

  I am running Ubuntu 14.04 with cable internet, and my wireless is detected and connected, but I cannot connect to the internet. I know the problem is with my machine because other machines are connecting to the same router just fine. I can connect via ethernet just fine as well. Here are some notable tests: ping 192.168.0.105 works with 0% packet loss, but ping 192.168.0.1 has 100% packet loss. When I plug in my ethernet, ping 192.168.0.1 works with 0% packet loss. My wireless name is tg, and the router ip is 192.168.0.1 (where I can enter username and password). I suspect that I need to change my wireless address from 192.168.0.105 to 192.168.0.1. Any suggestions on how to proceed? extra info: [lucas@lucas-ThinkPad-W520]/home/lucas$ iwconfig eth0 no wireless extensions. lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"tg" Mode:Managed Frequency:2.462 GHz Access Point: 00:02:6F:83:F8:F4 Bit Rate=1 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=62/70 Signal level=-48 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:52 Invalid misc:166 Missed beacon:0 [lucas@lucas-ThinkPad-W520]/home/lucas$ ifconfig eth0 Link encap:Ethernet HWaddr f0:de:f1:b2:53:53 inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::f2de:f1ff:feb2:5353/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:980003 errors:0 dropped:0 overruns:0 frame:0 TX packets:498384 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1320506168 (1.3 GB) TX bytes:59780591 (59.7 MB) Interrupt:20 Memory:f3a00000-f3a20000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:21927 errors:0 dropped:0 overruns:0 frame:0 TX packets:21927 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1781719 (1.7 MB) TX bytes:1781719 (1.7 MB) wlan0 Link encap:Ethernet HWaddr 24:77:03:29:8f:dc inet addr:192.168.0.105 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::2677:3ff:fe29:8fdc/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:11828 errors:0 dropped:0 overruns:0 frame:0 TX packets:15444 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:4855662 (4.8 MB) TX bytes:2250585 (2.2 MB) [lucas@lucas-ThinkPad-W520]/home/lucas$ lspci -nn | grep 0280 03:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:4238] (rev 3e) [lucas@lucas-ThinkPad-W520]/home/lucas$ rfkill list 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: tpacpi_bluetooth_sw: Bluetooth Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no with ethernet unplugged: [lucas@lucas-ThinkPad-W520]/home/lucas$ route -n | grep UG 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 wlan0 with ethernet plugged in: [lucas@lucas-ThinkPad-W520]/home/lucas$ route -n | grep UG 0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0 [lucas@lucas-ThinkPad-W520]/home/lucas$ nm-tool NetworkManager Tool State: connected (global) - Device: wlan0 [tg] ---------------------------------------------------------- Type: 802.11 WiFi Driver: iwlwifi State: connected Default: no HW Address: 24:77:03:29:8F:DC Capabilities: Speed: 52 Mb/s Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points (* = current AP) tatum: Infra, 40:8B:07:D8:A5:04, Freq 2437 MHz, Rate 54 Mb/s, Strength 42 W PA WPA2 ums: Infra, 00:20:A6:72:52:BF, Freq 2437 MHz, Rate 54 Mb/s, Strength 59 Alpha 40: Infra, 28:CF:E9:86:59:5D, Freq 5260 MHz, Rate 54 Mb/s, Strength 30 W PA WPA2 thepromiselan: Infra, 58:6D:8F:51:E5:54, Freq 2452 MHz, Rate 54 Mb/s, Strength 34 $ PA WPA2 xfinitywifi: Infra, 06:1D:D5:84:27:A0, Freq 2437 MHz, Rate 54 Mb/s, Strength 52 *tg: Infra, 00:02:6F:83:F8:F4, Freq 2462 MHz, Rate 54 Mb/s, Strength 73 W PA2 ums: Infra, 00:20:A6:A1:9F:25, Freq 2452 MHz, Rate 54 Mb/s, Strength 44 BRIAN-PC_Network:Infra, 20:AA:4B:DD:93:D6, Freq 2462 MHz, Rate 54 Mb/s, Strength 35 W PA2 HOME-C0F8: Infra, 44:32:C8:D2:C0:F8, Freq 2412 MHz, Rate 54 Mb/s, Strength 40 W PA WPA2 abcsexy: Infra, 28:28:5D:27:5D:85, Freq 2412 MHz, Rate 54 Mb/s, Strength 27 W PA WPA2 IPv4 Settings: Address: 192.168.0.105 Prefix: 24 (255.255.255.0) Gateway: 192.168.0.1 DNS: 192.168.0.1 - Device: eth0 [Wired connection 1] ------------------------------------------- Type: Wired Driver: e1000e State: connected Default: yes HW Address: F0:DE:F1:B2:53:53 Capabilities: Carrier Detect: yes Speed: 100 Mb/s Wired Properties Carrier: on IPv4 Settings: Address: 192.168.0.100 Prefix: 24 (255.255.255.0) Gateway: 192.168.0.1 DNS: 192.168.0.1

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• Why does Ubuntu only detect one USB LAN adapters at a time?

  - by EGO

  I try to connect real switch with my computer for an exam preparation, for this purpose I need more than one LAN cards, and there is only one built in LAN card in my computer. So, to get more LAN cards, I bought 4 USB Ethernet adapters (as I have 4 usb ports in may laptop 2 usb 2.0 ports, 2 usb 3.0 ports). When I plug these adapters in my computer Ubuntu only detects one LAN card from 2.0 usb ports, and one LAN card from 3.0 ports. And sometimes detects only one USB LAN from all the usb ports. Actually the real problem is Ubuntu shows these USB LAN adapters in the "lsusb", but does not list them in "ifconfig". Kontron (Industrial Computer Source / ICS Advent) is my LAN USB ethernet. abc@ubuntu:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hu Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hu Bus 002 Device 012: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 001 Device 003: ID 138a:0018 Validity Sensors, Inc. Bus 001 Device 004: ID 064e:e258 Suyin Corp. Bus 003 Device 011: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 002 Device 013: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 003 Device 012: ID 0fe6:9700 Kontron (Industrial Computer Source / ICS Advent) Bus 002 Device 005: ID 0a5c:21b4 Broadcom Corp. BCM2070 Bluetooth 2.1 + EDR -- etho is my built in LAN card, while eth1 is the only USB LAN card that ubuntu has detected. abc@ubuntu:~$ ifconfig eth0 Link encap:Ethernet HWaddr 2c:27:d7:a5:d2:39 inet6 addr: fe80::2e27:d7ff:fea5:d239/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:21056 errors:0 dropped:1 overruns:0 frame:0 TX packets:5669 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1407289 (1.4 MB) TX bytes:372566 (372.5 KB) Interrupt:49 Base address:0xa000 eth1 Link encap:Ethernet HWaddr 00:e0:4c:53:44:58 inet6 addr: fe80::2e0:4cff:fe53:4458/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:9230 errors:0 dropped:0 overruns:0 frame:0 TX packets:9230 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:557648 (557.6 KB) TX bytes:557648 (557.6 KB) wlan0 Link encap:Ethernet HWaddr cc:52:af:5e:78:05 inet addr:192.168.1.65 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::ce52:afff:fe5e:7805/64 Scope:LinkU UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:17389 errors:0 dropped:0 overruns:0 frame:0 TX packets:12231 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:22452248 (22.4 MB) TX bytes:1502750 (1.5 MB) If I unplug the USB LAN card which Ubuntu has detected, then Ubuntu will detect a USB LAN card from the remaining plugged adapters, and process go on untill I plug all the USB LAN adapters. Looking for some urgent help. Thanks

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• Slow wired internet connection on Realtek RTL8168-8111 (Rev 6)

  - by Mark

  I keep on seeing issues people are having with their wireless. I am having an issue with being wired into my router. I installed Ubuntu 11.10 the other day, on my custom PC. The motherboard I have installed on this PC is an ASUS P8H61-M. The issue I am having is with my speed. I have a dual boot, windows 7 and the new Ubuntu. On my Windows install I am getting test speeds from Speakeasy at 17Mbps and actual downloads around 2-3MB/s. With Ubuntu, I am getting test speeds from Speakeasy at 1.14Mbps and actual downloads around 60KB/s. I have disabled IPv6 and am no using GoogleDNS for my DNS, but it hasn't resolved the issue. I have scanned my router (WRT54GS Linksys) to disable IPv6 connections, and I am not seeing any option for that. I cannot figure out why I am getting such sluggish internet connection. Any help to resolve would be great! I performed an iconfig -a with these results: mark@Mark-ASUS:~$ ifconfig -a eth0 Link encap:Ethernet HWaddr f4:6d:04:d1:2c:4e inet addr:192.168.1.103 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::f66d:4ff:fed1:2c4e/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:21888 errors:0 dropped:21888 overruns:0 frame:21888 TX packets:21068 errors:0 dropped:90 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:26348337 (26.3 MB) TX bytes:2217140 (2.2 MB) Interrupt:46 Base address:0xc000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:7 errors:0 dropped:0 overruns:0 frame:0 TX packets:7 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:952 (952.0 B) TX bytes:952 (952.0 B) My specs are: mark@Mark-ASUS:~$ sudo lspci -nn 04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 06) 06:00.0 PCI bridge [0604]: ASMedia Technology Inc. Device [1b21:1080] (rev 01) udev information: KERNEL[11.351405] add /devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 (net) UDEV_LOG=3 ACTION=add DEVPATH=/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 SUBSYSTEM=net INTERFACE=eth0 IFINDEX=2 SEQNUM=1542 UDEV [11.363905] add /devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 (net) UDEV_LOG=3 ACTION=add DEVPATH=/devices/pci0000:00/0000:00:1c.2/0000:04:00.0/net/eth0 SUBSYSTEM=net INTERFACE=eth0 IFINDEX=2 SEQNUM=1542 ID_VENDOR_FROM_DATABASE=Realtek Semiconductor Co., Ltd. ID_MODEL_FROM_DATABASE=RTL8111/8168B PCI Express Gigabit Ethernet controller ID_BUS=pci ID_VENDOR_ID=0x10ec ID_MODEL_ID=0x8168 ID_MM_CANDIDATE=1 dmesg information: [ 2.855982] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded [ 2.856366] r8169 0000:04:00.0: eth0: RTL8168b/8111b at 0xffffc9000064c000, f4:6d:04:d1:2c:4e, XID 0c900800 IRQ 46 [ 12.540956] r8169 0000:04:00.0: eth0: link down [ 12.540961] r8169 0000:04:00.0: eth0: link down [ 12.541173] ADDRCONF(NETDEV_UP): eth0: link is not ready I took out a lot of information that did not pertain to eth0, because the previous edits wouldn't save. If I need any more information, let me know. I would love to get this resolved. The other issue I am noticing is sometimes my connection disconnects all together, for about a minute, then it reconnects.

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• Can't connect to certain HTTPS sites

  - by mind.blank

  I've just moved to a new apartment and with internet connection via a router and I'm finding that I can't connect to quite a few sites that use SSL. For example trying to connect to PayPal: curl -v https://paypal.com * About to connect() to paypal.com port 443 (#0) * Trying 66.211.169.3... connected * successfully set certificate verify locations: * CAfile: none CApath: /etc/ssl/certs * SSLv3, TLS handshake, Client hello (1): * Unknown SSL protocol error in connection to paypal.com:443 * Closing connection #0 curl: (35) Unknown SSL protocol error in connection to paypal.com:443 curl -v -ssl https://paypal.com gives the same output. For some sites it works: curl -v https://www.google.com * About to connect() to www.google.com port 443 (#0) * Trying 74.125.235.112... connected * successfully set certificate verify locations: * CAfile: none CApath: /etc/ssl/certs * SSLv3, TLS handshake, Client hello (1): * SSLv3, TLS handshake, Server hello (2): * SSLv3, TLS handshake, CERT (11): * SSLv3, TLS handshake, Server key exchange (12): * SSLv3, TLS handshake, Server finished (14): * SSLv3, TLS handshake, Client key exchange (16): * SSLv3, TLS change cipher, Client hello (1): * SSLv3, TLS handshake, Finished (20): * SSLv3, TLS change cipher, Client hello (1): * SSLv3, TLS handshake, Finished (20): * SSL connection using ECDHE-RSA-RC4-SHA * Server certificate: * subject: C=US; ST=California; L=Mountain View; O=Google Inc; CN=www.google.com * start date: 2011-10-26 00:00:00 GMT * expire date: 2013-09-30 23:59:59 GMT * common name: www.google.com (matched) * issuer: C=ZA; O=Thawte Consulting (Pty) Ltd.; CN=Thawte SGC CA * SSL certificate verify ok. > GET / HTTP/1.1 > User-Agent: curl/7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3 > Host: www.google.com > Accept: */* > < HTTP/1.1 302 Found < Location: https://www.google.co.jp/ . . . I'm using Ubuntu 12.04, with Windows 7 installed as well. These sites work on Windows :( Not sure if this information helps but I ran ifconfig and got the following: eth0 Link encap:Ethernet HWaddr 1c:c1:de:bc:e2:4f inet6 addr: 2408:c3:7fff:991:686b:8d18:81b3:8dd1/64 Scope:Global inet6 addr: 2408:c3:7fff:991:1ec1:deff:febc:e24f/64 Scope:Global inet6 addr: fe80::1ec1:deff:febc:e24f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:87075 errors:0 dropped:0 overruns:0 frame:0 TX packets:54522 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:78167937 (78.1 MB) TX bytes:10016891 (10.0 MB) Interrupt:46 Base address:0x4000 eth1 Link encap:Ethernet HWaddr ac:81:12:0d:93:80 inet6 addr: fe80::ae81:12ff:fe0d:9380/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:498 TX packets:0 errors:26 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:630 errors:0 dropped:0 overruns:0 frame:0 TX packets:630 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:39592 (39.5 KB) TX bytes:39592 (39.5 KB) ppp0 Link encap:Point-to-Point Protocol inet addr:180.57.228.200 P-t-P:118.23.8.175 Mask:255.255.255.255 UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1492 Metric:1 RX packets:39631 errors:0 dropped:0 overruns:0 frame:0 TX packets:22391 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:3 RX bytes:43462054 (43.4 MB) TX bytes:2834628 (2.8 MB)

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• Schizophrenic Ubuntu 12.10-12.04: Atheros 922 PCI WIFI is disabled in Unity but enabled in terminal - How to getit to work?

  - by zewone

  I am trying to get my PCI Wireless Atheros 922 card to work. It is disabled in Unity: both the network utility and the desktop (see screenshot http://www.amisdurailhalanzy.be/Screenshot%20from%202012-10-25%2013:19:54.png) I tried many different advises on many different forums. Installed 12.10 instead of 12.04, enabled all interfaces... etc. I have read about the aht9 driver... The terminal shows no hw or sw lock for the Atheros card, nevertheless, it is still disabled. Nothing worked so far, the card is still disabled. Any help is much appreciated. Here are more tech details: myuser@adri1:~$ sudo lshw -C network *-network:0 DISABLED description: Wireless interface product: AR922X Wireless Network Adapter vendor: Atheros Communications Inc. physical id: 2 bus info: pci@0000:03:02.0 logical name: wlan1 version: 01 serial: 00:18:e7:cd:68:b1 width: 32 bits clock: 66MHz capabilities: pm bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=3.5.0-17-generic firmware=N/A latency=168 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:18 memory:d8000000-d800ffff *-network:1 description: Ethernet interface product: VT6105/VT6106S [Rhine-III] vendor: VIA Technologies, Inc. physical id: 6 bus info: pci@0000:03:06.0 logical name: eth0 version: 8b serial: 00:11:09:a3:76:4a size: 10Mbit/s capacity: 100Mbit/s width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=via-rhine driverversion=1.5.0 duplex=half latency=32 link=no maxlatency=8 mingnt=3 multicast=yes port=MII speed=10Mbit/s resources: irq:18 ioport:d300(size=256) memory:d8013000-d80130ff *-network DISABLED description: Wireless interface physical id: 1 bus info: usb@1:8.1 logical name: wlan0 serial: 00:11:09:51:75:36 capabilities: ethernet physical wireless configuration: broadcast=yes driver=rt2500usb driverversion=3.5.0-17-generic firmware=N/A link=no multicast=yes wireless=IEEE 802.11bg myuser@adri1:~$ sudo rfkill list all 0: hci0: Bluetooth Soft blocked: no Hard blocked: no 1: phy1: Wireless LAN Soft blocked: no Hard blocked: yes 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no myuser@adri1:~$ dmesg | grep wlan0 [ 15.114235] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready myuser@adri1:~$ dmesg | egrep 'ath|firm' [ 14.617562] ath: EEPROM regdomain: 0x30 [ 14.617568] ath: EEPROM indicates we should expect a direct regpair map [ 14.617572] ath: Country alpha2 being used: AM [ 14.617575] ath: Regpair used: 0x30 [ 14.637778] ieee80211 phy0: >Selected rate control algorithm 'ath9k_rate_control' [ 14.639410] Registered led device: ath9k-phy0 myuser@adri1:~$ dmesg | grep wlan1 [ 15.119922] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready myuser@adri1:~$ lspci -nn | grep 'Atheros' 03:02.0 Network controller [0280]: Atheros Communications Inc. AR922X Wireless Network Adapter [168c:0029] (rev 01) myuser@adri1:~$ sudo ifconfig eth0 Link encap:Ethernet HWaddr 00:11:09:a3:76:4a inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0 inet6 addr: fe80::211:9ff:fea3:764a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5457 errors:0 dropped:0 overruns:0 frame:0 TX packets:2548 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3425684 (3.4 MB) TX bytes:282192 (282.1 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:590 errors:0 dropped:0 overruns:0 frame:0 TX packets:590 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:53729 (53.7 KB) TX bytes:53729 (53.7 KB) myuser@adri1:~$ sudo iwconfig wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on lo no wireless extensions. eth0 no wireless extensions. wlan1 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off myuser@adri1:~$ lsmod | grep "ath9k" ath9k 116549 0 mac80211 461161 3 rt2x00usb,rt2x00lib,ath9k ath9k_common 13783 1 ath9k ath9k_hw 376155 2 ath9k,ath9k_common ath 19187 3 ath9k,ath9k_common,ath9k_hw cfg80211 175375 4 rt2x00lib,ath9k,mac80211,ath myuser@adri1:~$ iwlist scan wlan0 Failed to read scan data : Network is down lo Interface doesn't support scanning. eth0 Interface doesn't support scanning. wlan1 Failed to read scan data : Network is down myuser@adri1:~$ lsb_release -d Description: Ubuntu 12.10 myuser@adri1:~$ uname -mr 3.5.0-17-generic i686  Any help much appreciated... Thanks, Philippe

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