what could be causing this VPN issue?

[nageov3t]

because I work weekends (saturday through tuesday), my office lets me work from home on saturday and sunday (since the office is empty anyways). I have to authenticate with a vpn on my desktop before I can TS into my company's server.

I'm having this super annoying issue, though... every time I connect with the VPN software (shrewsoft), as soon as the VPN connects, I lose all network connectivity. the VPN connection stays established, but I can't, for example, connect to my company's servers (nor can I even just browse the web).

it appears to be caused by my router, but I'm not sure where to even begin to try and troubleshoot this. I have verified, though, that the same problem happens on any computer I try behind my router and if I connect a computer directly to my cable modem, the problem goes away.

 

[nickbits]

I'm pretty sure that is a security policy set by your company's IT dept. There isn't anything you can do but ask them to change the policy.


EDIT:
Wait you can't connect to your company's servers?? Are you using internal network addresses for them?

 

[nageov3t]

Originally posted by: nickbits
I'm pretty sure that is a security policy set by your company's IT dept. There isn't anything you can do but ask them to change the policy.


EDIT:
Wait you can't connect to your company's servers?? Are you using internal network addresses for them?

after authenticating with my vpn, all internet connection drops (everything from my ability to connect to my company's servers to my ability to hit google.com on a local browser).

it's only when authenticating from behind my router, though... if I plug my computer directly into my modem, no problem. if I use my computer behind a different network, no problem (I've got it running right now, in fact; my neighbor's letting me leach off his wireless)

 

[Emulex]

you could change the default route if you are separate private lan's.

ie if work is on 10.1.1.1
and your home router is on 10.1.1.1 well there ain't jack to do there.

however if you are work 10.1.1.1
and home 10.1.2.1 network you could add a static route for all traffic destined for 10.1.1.1 to go to that vpn interface and have a default route for all else to go to the 10.1.2.1 interface.

dns is tricky since you probably need to rely on your vpn dns (unless you have a static ip to terminal service into).

they should take a look at terminal service gateway service (part of server 2008). alot less overhead than a vpn

 

[NesuD]

I have something similar to that happen from time to time with some sonicwall units that I have deployed around the country. They always bring up the VPN link to our main unit in my server room but won'tbe able to connect to anything. This only happens and then only rarely when the unit is being double natted behind another small router. I have always been able to overcome the issue by enabling NAT traversal in the effected Sonicwall unit. Seems some small home routers have some kind of odd configuration that causes it. Never been able to isolate what because I can't get access to the offending hardware. Not Sure if that fix will work in your software VPN but maybe your IT giuys can build you a connection profile that will enable NAT traversal and see if that helps you. What Router do you have?