I am having problems getting the VPN 3005 up and running. We have an ISDN connection to the internet through our Ascend Pipeline 50 ISDN router. The Pipeline 50 router uses NAT and all machines on our LAN use private IP addresses. The only real address we have is assigned to the WAN interface on the pipeline 50. The LAN interface on the pipeline 50 has the address of 192.168.100.1, which we use as the default gateway. I have given the VPN 3005 private and public interfaces IP addresses 192.168.100.250 and 192.168.100.251 respectively. I have enabled IPSec through NAT in Configuration | User Management | Base Group and assigned it UDP port 10101. I have then configured static mappings of UDP ports 500 and 10101 to 192.168.100.251 (public interface on the 3005) in the NAT configuration on the Pipeline 50. I have the client installed on a notebook PC that dials into a Internet account. I setup the VPN dialer to connect to the WAN IP address of the Pipeline 50 ISDN router. It gets to Negotiating security profiles, pauses, and then it comes back with “Unable to negotiate IPSec or host did not respond”. This is my first experience with VPN and I feel I’m in a little over my head. Any help is appreciated