"Steven M. Bellovin" <smb%bellovin.org@localhost> writes: > I'm trying to set up a tunnel from a NetBSD machine to a Cisco router. > The goal is to carry v6 traffic. Ultimately, the NetBSD machine will > be a router; for the moment, though, I'm just trying to get the > point-to-point stuff working. > > Following gif(4), I've done > > ifconfig gif0 create > ifconfig gif0 myV4addr theirV4addr up > ifconfig gif0 tunnel inet6 myV6addr theirV6addr > > Ifconfig shows that correctly, though it doesn't show anything in the > v6 routing table for the v6 addresses. That's a tunnel with v6 outer addresses carrying v4, which will be useful for the legacy 4bone after ISPs stop carrying v4 traffic in 2015. Seriously, I think you want to put the v4 addresses with 'tunnel', and the v6 without, so that your outer addresses are v4 and v6 packets carried within.
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