I just spend two hours trouble shutting VPN connection with one of external customer servers (Cisco 3000). It boils down to the fact that VPNC client in our ports tree is compiled without OpenSSL support. I noticed that customer's server was planting self-signed SSL certificate while playing on Windows 7. Is there any workaround to this problem? Red Hat had the same problem. VPN tunnel would establish but no route to destination would be available. I would hate to have Ubuntu or Windows proxy for this VPN tunnel.
Most Kind Regards, Predrag