VPN With PAT

[chris.allen]

Can I create a VPN tunnel where the remote router is behind a gateway router that uses Port Address Translation? In other words, one public IP for the entire private network? We're using a Concentrator 3005 at our corporate location and an 831 at the remote end.

Thanks

[jboyer]

Not likely.

Buy a vpn3002 hardware client, it can use udp or tcp encapsulation to make the connection to the vpn3005. Once the ipsec is encapsulated inside udp or tcp you can nat and pat all you want!