On 13/09/13 17:48, Christoph Egger wrote: > None of the things on the internet I found says something about a > sysctl, do you have any hints? Seems I was wrong about that, I was thinking of gre tunnels. Does kldstat show that if_gif is loaded? Have you tried disabling PF? Does this show a correct route to the tunnel endpoint via gif0? $ route -n get -inet6 2001:470:1f0a:102b::1 Regards, -- Steven Chamberlain steven@pyro.eu.org