Multiple VPN clients try to connect from behind same firewall

[JeffD]

I have a client who is running RRAS on Win2K to allow
their users in a remote office to VPN to their main
office. The remote office moved to a new office building
and is getting Internet Connectivity with NAT as part of
their lease. Suddenly, only one internal IP address is
able to VPN to the main office. It doesn't matter which
computer is using this one IP address.

My question is: Does RRAS VPN allow only one VPN
connection from the same public IP address? I suspect that
the problem is in the remote firewall's ability to perform
dynamic NAT, but I need to eliminate this possibility so I
can move on to other things.

Thanks

 

[John Lewis]

http://support.microsoft.com/default.aspx?scid=kb;en-us;818043

Also, some NAT routers simply will not support multiple clients for L2TP or
PPTP. Might check the docs for the router on the client/remote side.