No Internet access while being connected to VPN using Cisco VPN Client 5.

Posted by szeldon on Server Fault See other posts from Server Fault or by szeldon
Published on 2010-05-06T14:07:27Z Indexed on 2010/05/06 14:18 UTC
Read the original article Hit count: 241

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Hi,

I have an access to corporate VPN using Cisco VPN Client 5.0.00:0340, but when I'm connected to it, I don't have an Internet access. I'm using Windows XP SP3. As it was suggested here

http://forums.speedguide.net/showthread.php?t=209167

, I tried to enable "Allow local LAN Access" but it doesn't work. I also tried a second solution - deleting entry using "route" command, but it didn't help. I used "route delete 192.168.100.222". It's a third day of my attempts to solve this issue and I don't have an idea what else to do. I'm not very experienced in VPN stuff, but I know something about networking. Basing on my knowledge, I think that it's theoretically possible to achieve Internet access using my local network and only corporate stuff to be routed using VPN connection.

I think that theoretically this should look like this:

  • every IP being inside by corporation -> VPN interface IP
  • every other IP -> my ethernet interface

I've tried many possibilities of how to change those routes, but neither of them work. I'd really appreciate any help.

My route configuration before connecting to VPN:

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 c0 a8 de 79 01 ...... Atheros AR5006EG Wireless Network Adapter - Teefer2 Miniport
0x10005 ...02 00 4c 4f 4f 50 ...... Microsoft Loopback Card
0x160003 ...00 17 42 31 0e 16 ...... Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller - Teefer2 Miniport
===========================================================================
===========================================================================
Active routes:
Network Destination        Netmask          Gateway        Interface Metrics
          0.0.0.0          0.0.0.0  192.168.101.254  192.168.100.222      10
         10.0.0.0    255.255.255.0        10.0.0.10       10.0.0.10       30
        10.0.0.10  255.255.255.255        127.0.0.1       127.0.0.1       30
   10.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       30
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
    192.168.100.0    255.255.254.0  192.168.100.222  192.168.100.222      1
  192.168.100.222  255.255.255.255        127.0.0.1       127.0.0.1       1
  192.168.100.255  255.255.255.255  192.168.100.222  192.168.100.222      1
        224.0.0.0        240.0.0.0        10.0.0.10       10.0.0.10       3
        224.0.0.0        240.0.0.0  192.168.100.222  192.168.100.222      1
  255.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       1
  255.255.255.255  255.255.255.255  192.168.100.222  192.168.100.222      1
  255.255.255.255  255.255.255.255  192.168.100.222               2       1
Default gateway:  192.168.101.254.
===========================================================================

My route configuration after connection to VPN:

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 c0 a8 de 79 01 ...... Atheros AR5006EG Wireless Network Adapter - Teefer2 Miniport
0x10005 ...02 00 4c 4f 4f 50 ...... Microsoft Loopback Card
0x160003 ...00 17 42 31 0e 16 ...... Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller - Teefer2 Miniport
0x170006 ...00 05 9a 3c 78 00 ...... Cisco Systems VPN Adapter - Teefer2 Miniport
===========================================================================
===========================================================================
Active routes:
Network Destination        Netmask          Gateway        Interface Metrics
          0.0.0.0          0.0.0.0       10.251.6.1     10.251.6.51       1
         10.0.0.0    255.255.255.0        10.0.0.10       10.0.0.10       30
         10.0.0.0    255.255.255.0       10.251.6.1     10.251.6.51       10
        10.0.0.10  255.255.255.255        127.0.0.1       127.0.0.1       30
      10.1.150.10  255.255.255.255  192.168.101.254  192.168.100.222      1
       10.251.6.0    255.255.255.0      10.251.6.51     10.251.6.51       20
      10.251.6.51  255.255.255.255        127.0.0.1       127.0.0.1       20
   10.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       30
   10.255.255.255  255.255.255.255      10.251.6.51     10.251.6.51       20
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
    192.168.100.0    255.255.254.0  192.168.100.222  192.168.100.222      10
    192.168.100.0    255.255.254.0       10.251.6.1     10.251.6.51       10
  192.168.100.222  255.255.255.255        127.0.0.1       127.0.0.1       10
  192.168.100.255  255.255.255.255  192.168.100.222  192.168.100.222      10
  213.158.197.124  255.255.255.255  192.168.101.254  192.168.100.222      1
        224.0.0.0        240.0.0.0        10.0.0.10       10.0.0.10       30
        224.0.0.0        240.0.0.0      10.251.6.51     10.251.6.51       20
        224.0.0.0        240.0.0.0  192.168.100.222  192.168.100.222      10
  255.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       1
  255.255.255.255  255.255.255.255      10.251.6.51     10.251.6.51       1
  255.255.255.255  255.255.255.255  192.168.100.222  192.168.100.222      1
  255.255.255.255  255.255.255.255  192.168.100.222               2       1
Default gateway:   10.251.6.1.
===========================================================================

© Server Fault or respective owner

No Internet access while being connected to VPN using Cisco VPN Client 5.

Posted by szeldon on Stack Overflow See other posts from Stack Overflow or by szeldon
Published on 2010-05-06T14:07:27Z Indexed on 2010/05/06 14:08 UTC
Read the original article Hit count: 241

Filed under:
|
|
|
|

Hi,

I have an access to corporate VPN using Cisco VPN Client 5.0.00:0340, but when I'm connected to it, I don't have an Internet access. I'm using Windows XP SP3. As it was suggested here

http://forums.speedguide.net/showthread.php?t=209167

, I tried to enable "Allow local LAN Access" but it doesn't work. I also tried a second solution - deleting entry using "route" command, but it didn't help. I used "route delete 192.168.100.222". It's a third day of my attempts to solve this issue and I don't have an idea what else to do. I'm not very experienced in VPN stuff, but I know something about networking. Basing on my knowledge, I think that it's theoretically possible to achieve Internet access using my local network and only corporate stuff to be routed using VPN connection.

I think that theoretically this should look like this:

  • every IP being inside by corporation -> VPN interface IP
  • every other IP -> my ethernet interface

I've tried many possibilities of how to change those routes, but neither of them work. I'd really appreciate any help.

My route configuration before connecting to VPN:

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 c0 a8 de 79 01 ...... Atheros AR5006EG Wireless Network Adapter - Teefer2 Miniport
0x10005 ...02 00 4c 4f 4f 50 ...... Microsoft Loopback Card
0x160003 ...00 17 42 31 0e 16 ...... Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller - Teefer2 Miniport
===========================================================================
===========================================================================
Active routes:
Network Destination        Netmask          Gateway        Interface Metrics
          0.0.0.0          0.0.0.0  192.168.101.254  192.168.100.222      10
         10.0.0.0    255.255.255.0        10.0.0.10       10.0.0.10       30
        10.0.0.10  255.255.255.255        127.0.0.1       127.0.0.1       30
   10.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       30
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
    192.168.100.0    255.255.254.0  192.168.100.222  192.168.100.222      1
  192.168.100.222  255.255.255.255        127.0.0.1       127.0.0.1       1
  192.168.100.255  255.255.255.255  192.168.100.222  192.168.100.222      1
        224.0.0.0        240.0.0.0        10.0.0.10       10.0.0.10       3
        224.0.0.0        240.0.0.0  192.168.100.222  192.168.100.222      1
  255.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       1
  255.255.255.255  255.255.255.255  192.168.100.222  192.168.100.222      1
  255.255.255.255  255.255.255.255  192.168.100.222               2       1
Default gateway:  192.168.101.254.
===========================================================================

My route configuration after connection to VPN:

===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 c0 a8 de 79 01 ...... Atheros AR5006EG Wireless Network Adapter - Teefer2 Miniport
0x10005 ...02 00 4c 4f 4f 50 ...... Microsoft Loopback Card
0x160003 ...00 17 42 31 0e 16 ...... Marvell Yukon 88E8055 PCI-E Gigabit Ethernet Controller - Teefer2 Miniport
0x170006 ...00 05 9a 3c 78 00 ...... Cisco Systems VPN Adapter - Teefer2 Miniport
===========================================================================
===========================================================================
Active routes:
Network Destination        Netmask          Gateway        Interface Metrics
          0.0.0.0          0.0.0.0       10.251.6.1     10.251.6.51       1
         10.0.0.0    255.255.255.0        10.0.0.10       10.0.0.10       30
         10.0.0.0    255.255.255.0       10.251.6.1     10.251.6.51       10
        10.0.0.10  255.255.255.255        127.0.0.1       127.0.0.1       30
      10.1.150.10  255.255.255.255  192.168.101.254  192.168.100.222      1
       10.251.6.0    255.255.255.0      10.251.6.51     10.251.6.51       20
      10.251.6.51  255.255.255.255        127.0.0.1       127.0.0.1       20
   10.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       30
   10.255.255.255  255.255.255.255      10.251.6.51     10.251.6.51       20
        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1
    192.168.100.0    255.255.254.0  192.168.100.222  192.168.100.222      10
    192.168.100.0    255.255.254.0       10.251.6.1     10.251.6.51       10
  192.168.100.222  255.255.255.255        127.0.0.1       127.0.0.1       10
  192.168.100.255  255.255.255.255  192.168.100.222  192.168.100.222      10
  213.158.197.124  255.255.255.255  192.168.101.254  192.168.100.222      1
        224.0.0.0        240.0.0.0        10.0.0.10       10.0.0.10       30
        224.0.0.0        240.0.0.0      10.251.6.51     10.251.6.51       20
        224.0.0.0        240.0.0.0  192.168.100.222  192.168.100.222      10
  255.255.255.255  255.255.255.255        10.0.0.10       10.0.0.10       1
  255.255.255.255  255.255.255.255      10.251.6.51     10.251.6.51       1
  255.255.255.255  255.255.255.255  192.168.100.222  192.168.100.222      1
  255.255.255.255  255.255.255.255  192.168.100.222               2       1
Default gateway:   10.251.6.1.
===========================================================================

© Stack Overflow or respective owner

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