cant get windows vista vpn to work- router problems..

[lockmac]

Hi there. I have set up a VPN using Windows Vista. I am trying to connect to it but am having troubles.

From within the same LAN, if I connect to the VPN via the computers IP address (192.168.1.5), i can connect fine, but if i try my routers address, it doesnt work.

It goes to the part where it is verifying username and password and then throws an error suggesting that vpn passthrough and stuff isnt properly setup in the router.

but.. i believe my router settings to be right.

Under VPN Passthrough in my Cisco WAG200G, PPTP PassThrough is ENABLEd.

In port forwarding, I have port 1723 (TCP) redirecting to 192.168.1.5.

Any ideas why?

Im at a different location trying this as we speak and its not working.

MAny thanks

 

[lockmac]

bump..anyone please?

 

[Fardringle]

Since you have confirmed that the VPN connection is set up properly on the host computer, it sounds like the router (or possibly your ISP) is not allowing the connection. It may be that the PPTP passthrough on the router is not behaving properly although I'm not familiar enough with Cisco devices to know how to find out for sure. Try forwarding UDP port 500 from the router to your home computer and see if that will let you connect.

 

[lockmac]

hi mate. thanks for the reply. i can confirm that i have UDP port 500 and TCP port 1723 in my router forwarded to the VPN server and i have PPTP passthrough enabled. Any other ideas what the problem could be?

Doing my head in!

Thanks mate

 

[lockmac]

anyone else with ideas?

 

[spidey07]

You need to enable and forward IP Protocol 47 (GRE). This is not a tcp or udp port, but an IP protocol. Also setup NAT Traversal on the VPN server and client.

Most of the time "VPN passthrough" is from the LAN side to the WAN side, not the other way around.