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• What is error 324? Is it related to Google Chrome? Or Verizon Webmail?

  - by Jason Rhodes

  My in-laws are having trouble with signing into their Verizon Webmail account at webmail.verizon.net, only when they are on their wireless network. When they try to log in from wireless they get "Error 324" in the browser, in both Google Chrome and Internet Explorer 8. But they can access any other site, and they can get on their Verizon email when they plug in directly to the browser. Why is this?

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• TTL and traceroute showing different values for same domain

  - by Cray XT3

  y am i getting two different output for tracert and ping. Ping Result showing total hops of 20 and tracert showing 8. default ttl value on my linux machine 64,icmp echo reply ttl value 44. 64-44=20 but tracert is showing only 8 hops. What can be the reason? If tracert is implemented using ttl then why am i getting different values for same domain.no matter how many times i tried. Fo google and google services,ttl value and tracrt are same,but for other domains its different.

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• Linksys WiFi usb dongle and linux woes

  - by MrStatic

  I have a Linksys WUSB54GC usb dongle and I have exhausted every thing I know about making this thing work in linux. I am using Fedora 13. Since it is not ready I can not view any networks. Any ideas would be great. tail of the system log Jun 2 20:14:35 localhost kernel: usb 1-7: new high speed USB device using ehci_hcd and address 8 Jun 2 20:14:35 localhost kernel: usb 1-7: New USB device found, idVendor=1737, idProduct=0077 Jun 2 20:14:35 localhost kernel: usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 2 20:14:35 localhost kernel: usb 1-7: Product: 802.11 g WLAN Jun 2 20:14:35 localhost kernel: usb 1-7: Manufacturer: Ralink Jun 2 20:14:35 localhost kernel: usb 1-7: SerialNumber: 1.0 Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::radio Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::assoc Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::quality Jun 2 20:14:35 localhost NetworkManager[1367]: <info> found WiFi radio killswitch rfkill3 (at /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-7/1-7:1.0/ieee80211/phy3/rfkill3) (driver <unknown>) Jun 2 20:14:35 localhost kernel: rt2800usb 1-7:1.0: firmware: requesting rt2870.bin Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): driver supports SSID scans (scan_capa 0x01). Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): new 802.11 WiFi device (driver: 'rt2800usb' ifindex: 6) Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devices/4 Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): now managed Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): device state change: 1 -> 2 (reason 2) Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): bringing up device. Jun 2 20:14:35 localhost kernel: ADDRCONF(NETDEV_UP): wlan0: link is not ready Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): preparing device. Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): deactivating device (reason: 2). Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): supplicant interface state: starting -> ready Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): device state change: 2 -> 3 (reason 42) [root@localhost log]# iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg Mode:Managed Access Point: Not-Associated Tx-Power=8 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on

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• Monitor Bonded Interface for Disconnection

  - by bradlis7

  I am trying to monitor for network failures on a machine, and one portion of that is to monitor interfaces that are intended to be active also be "RUNNING". An Ethernet port, such as eth0, will say "RUNNING" if it is physically connected to another device. The problem lies in the bonded interfaces, such as bond0. If all of the ethernet devices are disconnected, it still says that it is running, and it is still pingable. Is this by design, or is my system setup incorrectly? Does the miimon option have something to do with this?

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• IP queue buffer

  - by summerbulb

  I seem to have an issue with IP queue. I have a linux machine that I am using to run some experiments. The linux machine is configured to be a router, having two NICs, connecting two other computers, and managing their network traffic. All incoming packages are captured, using iptables, and analyzed by a C application. The application analyzing the packets has a built-in delay, as part of the experiment. So I have one very fast computer sending packets through my linux-router and a (relatively) slow linux-router that analyses and deals with the packets, one by one. This situation leads to the fact that when I fire up a sender application on one of the computers connected to the linux-router, my IP queue on the linux-router gets filled up (almost) instantaneously. The IP queue's max length is currently set to 1024, and if it overflows, the packets are dropped. This is expected and i'm OK with it. But, (and this is where it gets interesting), every now and then I get the following error: "Failed to receive netlink message: No buffer space available" At start, I thought this was due to the IP queue overflow, but after some analysis i found that sometimes I get the error even if the IP queue buffer did not overflow, and sometime I DON'T get the message even though the buffer DID overflow. When I run > cat /proc/net/ip_queue, I get the following table (also used to monitor the IP queue overflow): Peer PID : 27389 Copy mode : 2 Copy range : 65535 Queue length : 0 Queue max. length : 1024 Queue dropped : 1166875 Netlink dropped : 2916 Looking at the last two values, Queue dropped seems to refer to packets that did not manage to get into the IP queue because the buffer was full. I can see this value rise as I bombard the linux-router. Netlink dropped ( as it's name implies :) ) seems to have to do with the error i'm getting. I did my best to search for material on this error, but wasn't able to find anything that seemed to point me in the required direction. Bottom line: Why am I getting this error and what can I do to avoid it?

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• SCP command Clarification

  - by david.colais

  I'm using the scp commands to pull some files from the remote server and one variation of the command is not working. I have 2 files names one.xml and two.xml in a remote server and I'm pulling these two files into the current dir using the following command: scp [email protected]:/student/class/Intermediate/one.xml . scp [email protected]:/student/class/Intermediate/two.xml . The above command works fine but if I use wildcards to pull all the xml files in a single shot as shown below it returns scp: No match. scp [email protected]:/student/class/Intermediate/*.xml . Why is it working if I pull the files individually and not working if I try to pull using wildcards.

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• Multiple SSIDs better or worse

  - by swiss196

  I'm just setting up a network in a student house with 10 rooms, 3 floors. Configuration at the moment is as follows: Virgin Media 100mb Cable Virgin SuperHub on ground floor broadcasting on SSID1 Second AP(Edimax) wired on middle floor broadcasting on SSID2 These two networks server all 3 floors fairly well but I was wondering whether it would be better to setup an individual SSID for each floor (both the routers allow me to configure up to 3 ssids on each!). Would this help with speed issues, i.e if someone on the top floor is downloading/streaming etc, this wouldn't affect someone on the middle floor on a different SSID Or, will it have no effect? Thanks, Dave

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• Tunneling a public IP to a remote machine

  - by Jim Paris

  I have a Linux server A with a block of 5 public IP addresses, 8.8.8.122/29. Currently, 8.8.8.122 is assigned to eth0, and 8.8.8.123 is assigned to eth0:1. I have another Linux machine B in a remote location, behind NAT. I would like to set up an tunnel between the two so that B can use the IP address 8.8.8.123 as its primary IP address. OpenVPN is probably the answer, but I can't quite figure out how to set things up (topology subnet or topology p2p might be appropriate. Or should I be using Ethernet bridging?). Security and encryption is not a big concern at this point, so GRE would be fine too -- machine B will be coming from a known IP address and can be authenticated based on that. How can I do this? Can anyone suggest an OpenVPN config, or some other approach, that could work in this situation? Ideally, it would also be able to handle multiple clients (e.g. share all four of spare IPs with other machines), without letting those clients use IPs to which they are not entitled.

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• stunnel: SSL-to-SSL? (for smtp/imap)

  - by nonot1

  Hello, How can I configure stunnel to accpet SSL connections, and connect then to an SSL port on a different server? Here is my setup: Our ISP's server, "Mail Server", supports smtp/imap over SSL. (Not starttls. Just over ssl.) But, I have a bunch of client machines that will only trust a specific, internal, root certificate. Thus, they can not connect to "Mail Server". For these client machines, I'd like to make a dedicated "Mail Tunnel" host that uses stunnel to listen with an in-house signed SSL certificate, and just forward data to "Mail Server" using a 2nd SSL connection. Can this be done? What would be the specific steps for Ubuntu Server 10.10? (I'm not too familiar with persistent service configuration.) Thank you

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• Win 2003 STD network adapter always showing DHCP when in static IP configuration, + it loses the DNS

  - by Darragh

  Hi, I have a server that after the first configuration it was DHCP, now I have added it to our domain and in a static IP, however after a few moments it returns to DHCP but with only some of the IPv4 setting staying the same, It loses DNS for example. I'm not sure what is causing the problem but all I know is this started to happen after I added it to the domain, Would it be a domain policy? or the NIC drivers Spec; Dell M605 Blade server Windows 2003 STD SP1 Intel Xeon Quad core NIC: Dual embedded Broadcom NetXtreme IITM 5708 Gigabit Ethernet NIC w/ TOE

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• Linux/hostapd: AP can ping clients, clients can access internet, can't access www@wlan1 with more than 5-6 packets at once

  - by mhambra

  Please edit the title, can't make it sound better. -- OP. Hi all, I have a Wifi USB dongle in a PC, that serves as an AP for laptop. wlan1: 192.168.2.1, netmask 255.255.255.0, routed: route add -net 192.168.2.0 netmask 255.255.255.0 gw 192.168.2.1 ping 192.168.2.2 (laptop): ping was ok for lot of packets. Now, I try to access 192.168.2.1:80/myindex.html (apache) from laptop, and can see that own 1kb test page. But, trying to access 192.168.2.1:80/my.jpg, I see the following: GET /my.jpg HTTP/1.1 200 OK <jpg header, about a kilobyte> <TCP packet retransmisson> <TCP packet retransmisson> <end of stream> It seems to be a hostapd's problem (networked stuff worked fine with Ad-Hoc), but it may be also forwarding/routing problem too. What to google for? Even more strange, SSH to that host works fine.

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• Is it possible to change an "Unidentified Network" into a "Home" or "Work" network on Windows 7

  - by Rhys

  I have a problem with Windows 7 RC (7100). I frequently use a crossover network cable on WinXP with static IP addresses to connect to various industrial devices (e.g. robots, pumps, valves or even other Windows PCs) that have Ethernet network ports. When I do this on Windows 7, the network connection is classed as an "Unidentified Network" in Networks and Sharing Center and the public firewall profile is enforced by Windows. I do not want to change the public profile and would prefer to use the Home or Work profile instead. For other networks like Home and Work I'm able to click on them and change the classification. This is not available for unidentified networks. My questions are these:- Is there a way to manual override the "Unidentified Network" classification? What tests are performed on the network that fail, therefore classifying it as an "Unidentified Network" By googling (hitting mainly vista issues) it seems that you need to ensure that the default gateway is not 0.0.0.0. I've done this. I've also tried to remove IPv6 but this does not seem possible on Windows 7. UPDATE For those still having problems here is the answer to my issue and the possible reasons why:- Win7 keeps a list of the networks you visit by (I am assuming, but don’t know for sure) the MACID of the device pointed to by the Default Gateway. The default gateway is usually the constant device in a network (i.e. the NAT or router) so can be used to uniquely identify one network from another. The default gateway in the IPv4 properties panel must therefore point to an actual endpoint so windows can then keep track of it. If there is a device at the end of the Default Gateway windows will identify it and track it remembering its settings. The ways you can therefore fool Win7 is to either point the default gateway to your own IP address, or the IP address of the target device you’re communicating with. This will have the side effect of expecting that target device to start routing packets for IP destinations that are outside your subnet. So some applications on Win7 will try to communicate with the internet, these will be passed on to the default gateway (either back you the same IP address or a target device that is not a router) and thus will eventually timeout because neither can route packets. Which you can usually live with. This gets slightly complicated when you mix a this type of connection with a real connection to the internet via WIFI. The wired network card usually has priority when routing because of the “interface metric” so some applications might not connect correctly.

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• use network drives as mount points during installation?

  - by ajsie

  is it possible to use network storage locations as mount points during installation? cause i want to separate system (ubuntu) with data (personal files). eg. if i have 5 computers i don't want to recreate /home/david 5 times. so i want to mount networkdrive/home to /home in local ubuntu server. so ALL users home folders could be used and maybe also networkdrive/projects to /projects. in that way its ok if i by accident repartitioned the local ubuntu server cause all data is not there on that server, but in the data server. is separating "data" from "logic" good in this case? and is it possible? what protocol should i use for the mapping over internet? (maybe the server is in Sweden, and the data is in Norway). thanks.

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• Transient network dropout for Xen DomU's

  - by Stephen C

  We've got a CentOS server running a cluster of virtuals. Occasionally the cluster's internal network drops out for a minute or so ... and then comes back. The problem is somehow related to the actual network traffic, but it is not a simple load issue. (The system is generally lightly loaded, and the problem occurs irrespective of actual load.) The setup: CentOS 5.6 on Dom0, various CentOS on the DomU's Hardware - a Dell R710 with a BroadCom NextXpress 2 NIC (sigh) using the latest drivers for the NIC from BroadCom Xen configured to use network-bridge and vif-bridge Some iptable tweaks to route an unrelated port to one of the virtuals. The system has one externally visible IP address, and Dom0 runs an Apache httpd configured with a number of virtual hosts each of which reverse proxies to web servers running on the virtuals. (The virtuals have to be NAT'ed, primarily because we don't have enough allocated public IP addresses.) The symptoms: Works fine most of the time. When someone tries to UPLOAD a large file to one virtuals, the internal network drops out ... for all virtuals: The Dom0 httpd sees a network timeout talking to the backend server on the virtual and reports a 502. A previously established ssh connection from Dom0 to any of the DomU's freezes. Our monitoring shows ping failures for traffic between virtuals. The Xen consoles to the DomU's do not freeze. No log messages in any log files that I can see, on either Dom0 or the DomU's ... apart from the Dom0 httpd logs. After a minute or so, the problem clears by itself. This is 100% reproducible. What we've tried: Downloading, building and installing the latest BNX2 driver on Dom0 Turning off MSI on the NIC - adding "options bnx2 disable_msi=1" to /etc/modprobe.conf Turning off tcp segmentation offload - "ethtool -K eth0 tso off". Sacrificing a black rooster at midnight. I've exhausted all my options apart from switching to KVM ... or slaughtering more roosters. Any suggestions?

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• Assign fixed IP address via DHCP by DNS lookup

  - by Janoszen

  Preface I'm building a virtualization environment with Ubuntu 14.04 and LXC. I don't want to write my own template since the upgrade from 12.04 to 14.04 has shown that backwards compatibility is not guaranteed. Therefore I'm deploying my virtual machines via lxc-create, using the default Ubuntu template. The DNS for the servers is provided by Amazon Route 53, so no local DNS server is needed. I also use Puppet to configure my servers, so I want to keep the manual effort on the deployment minimal. Now, the default Ubuntu template assigns IP addresses via DHCP. Therefore, I need a local DHCP server to assign IP addresses to the nodes, so I can SSH into them and get Puppet running. Since Puppet requires a proper DNS setup, assigning temporary IP addresses is not an option, the client needs to get the right hostname and IP address from the start. Question What DHCP server do I use and how do I get it to assign the IP address based only on the host-name DHCP option by performing a DNS lookup on that very host name? What I've tried I tried to make it work using the ISC DHCP server, however, the manual clearly states: Please be aware that only the dhcp-client-identifier option and the hardware address can be used to match a host declaration, or the host-identifier option parameter for DHCPv6 servers. For example, it is not possible to match a host declaration to a host-name option. This is because the host-name option cannot be guaranteed to be unique for any given client, whereas both the hardware address and dhcp-client-identifier option are at least theoretically guaranteed to be unique to a given client. I also tried to create a class that matches the hostname like this: class "my-client-name" { match if option host-name = "my-client-name"; fixed-address my-client-name.my-domain.com; } Unfortunately the fixed-address option is not allowed in class statements. I can replace it with a 1-size pool, which works as expected: subnet 10.103.0.0 netmask 255.255.0.0 { option routers 10.103.1.1; class "my-client-name" { match if option host-name = "my-client-name"; } pool { allow members of "my-client-name"; range 10.103.1.2 10.103.1.2; } } However, this would require me to administer the IP addresses in two places (Amazon Route53 and the DHCP server), which I would prefer not to do. About security Since this is only used in the bootstrapping phase on an internal network and is then replaced by a static network configuration by Puppet, this shouldn't be an issue from a security standpoint. I am, however, aware that the virtual machine bootstraps with "ubuntu:ubuntu" credentials, which I intend to fix once this is running.

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• Turning on Bluetooth disables wifi on Yoga 2

  - by Yostage

  I have a Lenovo Yoga 2. The moment that I turn on bluetooth, the wifi drops out - I lose connection, and connecting again shows "connection failed". If I turn the bluetooth off, wifi can reestablish fine. I've tried lots of different combinations of drivers for both the wifi and the bluetooth, but no combination has has changed this behavior yet. I've read some speculation that the cards have insufficient shielding, but that seems like kind of a large flaw to ship with. I've tried with a Carbon X1, a Yoga 2 Pro, and a Yoga 2 all next to each other on the desk while running InSSIDer. The X1 and the Y2P don't lose wifi connection when the bluetooth turns on, but the Y2 does immediately. The Y2P and the Y2 are running the same drivers for bluetooth and wifi, and appear to have the same wireless card internally. During the failure state, InSSIDer still sees signal strength for my network, but I cannot connect to it. stats: the card that comes in the laptop is an Intel Wireless-N 7260 Intel Bluetooth driver is at 17.0.1401.422 Intel Wireless driver is at 17.0.2.5 Windows 8.1 x64 Home wifi is a Medialink MWN-WAPR150N

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• NTOP gives warnings on startup

  - by FR6

  I just installed ntop 1.4.4 and when I start it, it give me infinite warnings "packet truncated": ... RRD_DEBUG: umask 0066 RRD_DEBUG: DirPerms 0700 THREADMGMT: RRD: Started thread (t2992630672) for data collection THREADMGMT[t2992630672]: RRD: Data collection thread starting [p30923] INIT: Created pid file (/var/run/ntop.pid) THREADMGMT[t3086329552]: ntop RUNSTATE: INITNONROOT(3) Now running as requested user 'nobody' (99:99) Note: Reporting device initally set to 0 [eth0] (merged) THREADMGMT[t3086329552]: ntop RUNSTATE: RUN(4) THREADMGMT[t2982140816]: NPS(1): Started thread for network packet sniffing [eth0] THREADMGMT[t2982140816]: NPS(eth0): pcapDispatch thread starting [p30923] THREADMGMT[t2982140816]: NPS(eth0): pcapDispatch thread running [p30923] THREADMGMT[t3047009168]: SIH: Idle host scan thread running [p30923] THREADMGMT[t3057499024]: SFP: Fingerprint scan thread running [p30923] **WARNING** packet truncated (8814->8232) **WARNING** packet truncated (10274->8232) **WARNING** packet truncated (8814->8232) **WARNING** packet truncated (8814->8232) ... Do I need to configure something? I tried to access the web interface (http://localhost:3000) but it does not work. Note: I'm on CentOS. EDIT: Not sure if it helps but there is my "ifconfig": eth0 Link encap:Ethernet HWaddr 00:16:76:BC:7E:77 inet addr:192.168.0.221 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::216:76ff:febc:7e77/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:15496640 errors:0 dropped:0 overruns:0 frame:0 TX packets:19256813 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:836230629 (797.4 MiB) TX bytes:608496148 (580.3 MiB) Memory:dffe0000-e0000000

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• Are there any tests I can run on a network to simulate 100 heavy network users?

  - by marc.gayle

  I will be hosting a Ruby on Rails workshop at a small hotel in the near future, and while they have 'Wifi' everywhere on the property, and the property normally hosts 150 - 300 people, I am not 100% confident that they have hosted 150 tech people that tend to have heavy web surfing habits/needs. Their tech department is also 1 or 2 guys. Are there any automated tests I can download and run from my laptop, on the network, that would simulate 100 'heavy users' on the network at the same time? Their broadband pipe is a 15mbps cable connection. Would that suffice for the general surfing needs of 100 - 150 techies? I know all it takes is 1 or 2 bit torrenters to kill the entire network, but assuming we can at the very least block those ports or encourage the attendees not to file share on the network, would that speed suffice for general surfing needs? What are good resources online that would allow me to quickly get up to speed on the IT related issues, so that I can ask their sysadmins the right questions? Edit: Note that I am fairly technical, so assume I can get up to speed quickly even with technical manuals, etc.

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• How can I switch from a custom linux network namespace back to the default one?

  - by Martin

  With ip netns exec you can execute a command in a custom network namespace - but is there also a way to execute a command in the default namespace? For example, after executing these two commands: sudo ip netns add test_ns sudo ip netns exec test_ns bash How can the newly created bash execute programs in the default network namespace? There is no ip netns exec default or anything similar as far as I've found. My scenario is: I want to run a SSH server in a separate network namespace (to keep the rest of the system unaware of the network connection, as the system is used for network testing), but want to be able to execute programs in the default network namespace via the SSH connection. What I've found out so far: Created network namespaces are listed as files under /var/run/netns (but there is no file for the default namespace) The ip netns exec code can be found here: http://git.kernel.org/cgit/linux/kernel/git/shemminger/iproute2.git/tree/ip/ipnetns.c#n132 - I haven't grasped everything that it is doing yet, but it doesn't look very promising. ip netns identify $$ as suggested by Howto query and change network namespace on linux? returns nothing when in the default network namespace

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• Network trials and tribulations

  - by MauiWowie

  Hi, I am in the process of setting up a small (two PC's, both running Windows 7) network using a D-link DI-604 router (which acts only as hub, it's not set up in any way). In the Network and 'Sharing Center' in 'Control Panel' I clicked 'Set up a New (Connection or) Network'. All went well up until the moment I attempted to connect one PC with the other (in the 'Connect' dialog I entered the other PC's IP, no pwd). I can use both PC's to connect to and browse the net though, so the router/hub does not seem to be the problem. And I must have done something right, because the other computer shows up in the 'Network Map'. Any and all help is much appreciated!

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• Lost contact with my NAS after changing its IP

  - by Beles

  I did some brain-dead reconfiguring of my D-Link DNS-323 NAS some days ago. I have a home network where each computer gets a dynamically allocated IP address starting at 192.168.1.100. The irritating point (for me at least) was that the NAS changed IP if the power went down or I turned off the router. I then had to remap a drive-letter to point to the new IP address of the NAS. To remedy that I configured the NAS to have a static IP, 192.168.0.10. I had no good reason to choose that IP, other than I found it in a user manual for the NAS. After I changed the IP and rebooted the NAS it disappeared from the network and was never to be found again. Now I have a black brick standing in my home, looking good, but "dead". Could anyone point me in a direction which helps me solve this problem? I have about 100gb worth of pic of my children on this brick so I really want it back :-) Sincerely,

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• SSH not working after Restoring Running-Config to a Replacement Cisco Router

  - by Kyle Brandt

  One of my Cisco routers died over the weekend, Cisco sent the replacement and I restored the the config using copy tftp: running-config. Everything seems to work fine but I can no longer ssh into the router (I can telnet). The connection is refused, so it isn't listening on port 22 it seems like. I had previously backed up the config by just doing ssh router 'show run' > backup_config from my workstation. So: Is there anything wrong with my method of backup vs copy running-config tftp:? I know I haven't given any debug information, but is there something typical I need to do to get ssh working?

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• Internet access using Edimax BR-6204WG as NIC

  - by Mat Richardson

  My internet access at home is provided by Virgin Media via their superhub. I have a laptop with no NIC - however I do have a spare wireless router, the Edimax BR-6204WG, which I have been led to believe can be used to bridge wireless connections. Only problem is, I'm not sure how to go about doing this. The manual for the device is here:- http://www.edimax.co.uk/images/Image/manual/Wireless/BR-6204Wg/BR-6204Wg_Manual.pdf Basically, I want to be able to connect the Edimax wireless router to my laptop using ethernet cable and to use it to pick up the wireless connection from my Virgin superhub. I've managed to get so far in some ways, but then I'm stuck.

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• unable to access a NAT'ed IP via a VPN on Windows 7

  - by crmpicco

  I connect to a range of servers hosted by one provider via a VPN. I can connect to the VPN fine, however when I then go and try and connect to the server(s) it fails. A NAT'ed IP address that has worked up until today, has stopped working either via SSH/SFTP. As you can see below, if I try and ping the IP then it responds with Destination host unreachable, but, for some reason it says the reply is from 192.168.0.8? If it enter this IP address in my browser, I get nothing. Where is this IP coming from and is there any good reason why I cannot access the IP I am trying to ping? C:\Users\crmpicco>ping 172.26.100.x Pinging 172.26.100.x with 32 bytes of data: Reply from 192.168.0.8: Destination host unreachable. Reply from 192.168.0.8: Destination host unreachable. Reply from 192.168.0.8: Destination host unreachable. Reply from 192.168.0.8: Destination host unreachable. Ping statistics for 172.26.100.x: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), I have the VPN remote host address of 80.75.67.x, which shows me as being connected. But i'm unsure if there is a config issue at the server side or my end that has caused this issue? I have had some recent Win7 (automatic) updates, but it's hard to tell if that's caused this problem. This is my output from arp: C:\Users\cmorton>arp -a Interface: 192.168.0.8 --- 0xe Internet Address Physical Address Type 192.168.0.1 00-18-4d-b9-68-5e dynami 192.168.0.6 00-f4-b9-68-0c-9a dynami 192.168.0.7 08-00-27-f2-9f-d6 dynami 192.168.0.255 ff-ff-ff-ff-ff-ff static 224.0.0.22 01-00-5e-00-00-16 static 224.0.0.251 01-00-5e-00-00-fb static 224.0.0.252 01-00-5e-00-00-fc static 239.255.255.250 01-00-5e-7f-ff-fa static 255.255.255.255 ff-ff-ff-ff-ff-ff static Interface: 192.168.56.1 --- 0x15 Internet Address Physical Address Type 192.168.56.255 ff-ff-ff-ff-ff-ff static 224.0.0.22 01-00-5e-00-00-16 static 224.0.0.251 01-00-5e-00-00-fb static 224.0.0.252 01-00-5e-00-00-fc static 255.255.255.255 ff-ff-ff-ff-ff-ff static

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• Will a 2.4Ghz WAP intefere with a 5.0Ghz WAP if placed directly next to each other

  - by Dan

  This is mostly a curiosity question to people who know more about radio and wi-fi than I. The 2.4Ghz band is massively overpopulated near my house to the point of sometimes getting 1000ms pings to the router from only a few feet away. inSSIDer finds at least 10 broadcasting SSID's within around 15 seconds of starting, so this isn't a real surprise to me! Sometimes I can get good results by changing the channel to something like 3 or 8, but it's usually temporary as the others use Auto Channel and hop around. Now, the router I have is capable of 5.0Ghz, as is the laptop I type this on. Switching to 5.0Ghz gives superb results: I can download at ~90Mbps and get consistent 1ms pings. The problem is that only this laptop supports 5.0Ghz! My question: Would I still get decent 5.0Ghz performance if I place a 2.4Ghz access point directly next to my router? And, indeed, will 2.4Ghz continue working as 'normal'? Testing would be an obvious step, but I threw all my superfluous equipment out in a recent house move. My understanding is that I should get good performance, certainly in comparison to having two devices using the same frequency range, but I do believe there will be some impact by the virtue of them being directly next to each other. (Cabling is not an option due to it being a rented house)

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