08-22-2008 06:03 AM - edited 02-21-2020 03:54 PM
Hello,
I am working on setting up a lan-to-lan vpn between an 1811 router and 851 router. I have the configuration set so that I can ping servers and computers on both sides of the vpn. The tunnel seems to be up, but I think I am missing a step here. I have a server and exchange server behind one side of the vpn tunnel. I thought that with the tunnel set up I could log-in just like I was in the local office, but my exchange and network drives won't connect. Am i missing something in DNS or routing somewhere?
Thanks,
Jason
08-22-2008 06:36 AM
Hello Jason,
If you can ping the servers, then it can be Fragmentation/MTU issue , where you will have to adjust TCP MSS value on the VPN end devices.
Example:
ip tcp adjust-mss 1360
HTH
Saju
08-23-2008 06:54 AM
Thank you for your help that was exactly what was wrong. Could you tell me how to check that you solved the problem. I don't see a box or area to designate this. I want to make sure you get credit for your help.
Thanks again,
Jason
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