You won't believe it, but it still fails in this last case: br0 bridge id 8000.00010224a704 designated root 7fff.000021002dc0 root port 1 path cost 100 max age 20.00 bridge max age 200.00 hello time 2.00 bridge hello time 20.00 forward delay 50.00 bridge forward delay 5.00 ageing time 300.00 hello timer 0.00 tcn timer 0.00 topology change timer 0.00 gc timer 161.44 flags eth0 (2) can't get port info For what I see on a strace, you are going through this before printing this last error: lstat64("/sys/class/net/br0/brif", 0xbffff9fc) = -1 ENOENT (No such file or directory) ... lstat64("/sys/class/net/eth0/brport", 0xbfffe77c) = -1 ENOENT (No such file or directory) ioctl(3, 0x89f0, 0xbfffe980) = -1 EOPNOTSUPP (Operation not supported) Hope that helps fixing this last bit. Regards... -- Manty/BestiaTester -> http://manty.net