How to enable VPN to my domaincontroller on my router

Dear forumusers,

Since a few days I've been trying to set up a VPN passthrough on my Cisco 876 ADSLoverISDN router.

VPN works fine, but the router refuses connections from outside. WHICH IS GREAT. However, I would like to enable VPN and REMOTE desktop acces from outside connections.

CISCO help is not very helpfull and I hope someone in here can help me get a long. Since even pinging my IP adres gives me timeout errors I've been looking in to the firewall options. Does not seem to help to open it up completely even.

regards,
Tommie

I am not aware of your router series, But my suggestion is first confirm
" Did u enabled NATing in your router" if so, you have to check the NAT configuration.
If you are not enabled NAT , Check that IP route entry you are using for VPN is available in or not.
All are Ok still problem,

Check the local server there might be not enabled VPN and remote access.
Still problem ask me , i will solve u r problem, But make sure above mentioned solutions.