If you' re using interface based ipsec vpn, then, on the 60B goto Interface and edit the VPN interface and you will see a space for entries for IP and Remote IP which default to 0.0.0.0 & 0.0.0.0 respectively.
Put a local IP address in IP and your remote gateway in Remote IP and the firewall should then be able to figure out how to route the traffic.
You don' t need to do anything on the other end if it isn' t a 60B as this seems to be an oddness unique to this model.
Thought for the day:
Advertising (n): the science of arresting the human
intelligence for long enough to get money from it.
-- Stephen Leacock.