I got tired of trying to fix my IPv6 tunnel broker, so I did a clever hack instead. On ip-up for my ppp0 (I’m running DSL with PPPoA, probably one of the very few people in Norway doing that, but nevermind), I ssh into the other tunnel point and set up the tunnel through that. After spending a few hours trying to get my gateway to forward packets from my laptop through the gateway, I managed to lock myself out of it. After a little more fiddling it just worked. Weird. If I’m able to find a fcdsl module which works under 2.6, I’ll try using that instead.