Disgusting routing tricks

Posted by nuxi on 2007-Dec-02 at 23:33:35 in Computers (Login to reply)

Never add a Wireless card in client mode to an ethernet bridge. Its just asking for trouble really. Something about the IPv6 packets that come out the wifi interface disagree with my AP's wireless card firmware. The packets don't even show up for tcpdump. To work around this I'm now running a 6-in-4 tunnel from the AP to the wireless bridge.

The catch is that IPv6 from the AP -> wireless bridge works. So I can't run radvd anymore to provide IPv6 autoconf. The network basically shits its pants with a routing loop. Its rather amusing actually, I get funny errors like this:

# ping6 2001:4830:1546:1::10
PING 2001:4830:1546:1::10(2001:4830:1546:1::10) 56 data bytes
From 2001:4830:1546:1::10 icmp_seq=3 Destination unreachable: Address unreachable

Don't think about that too hard or your head will explode.