I have been fighting with this VPN configuration for about 2 weeks now and could really use some help or insight.
I currently have the Actiontec router with the DMZ configured to the wan of the cisco vpn (192.168.1.25). I have configured the cisco vpn and have tested the configuration from inside the Actiontec LAN but i cannot connect from outside the network. The VPN connects and i see the status on the router says "Online", however I get a "gateway is not responding" error on my QuickVPN client.
I have also tried port forwarding on the Actiontec. Also i can access the remote management of the Cisco. Below is a brief descrioption of the network.
Actiontec LAN IP: 192.168.1.1
Cisco WAN IP: 192.168.1.25
Cisco WAN Gateway: 192.168.1.1
Cisco LAN IP: 10.0.10.1