I need to set up an ipsec tunnel between a couple of ip6 networks, but I only have an ip4 path between the two gateways. I don't want any ip4 traffic inside the ipsec tunnel, so I'm a bit puzzled about how to set this up. Once I have the end-points up, can I just point the ip6 traffic and routes at enc0? All the example I can find assume you're tunneling ip4 traffic through an ip4 tunnel. (Sorry, but after three decades of trying, I still can't make heads nor tails of ipsec :-P)
--lyndon
