>With 2.4 Kernel Centos 3.5 it works fine, but I didn't bring up eth0 ip >interface. Need to retest this without an ip interface on eth0 and 2.6 >kernel, the previous case I had an ip on eth0 as well. The "up" and "down" states of interfaces seems to be the hardware switch. Dunno how it is implemented with NICs, but I have seen that in snd-cs46xx.c, the card is totally shutdown on module unload. So I guess, it's the same on "ip l s dev eth0 down" To have a bridge `a la ebtables work, the ports need to be up. And preferably, have no IP. This is really cool - I've got a br0 with eth2 linked to a WLAN router. With just one command, "ip l s dev eth2 down", all wlan traffic (through the server) can be disabled. Jan Engelhardt -- | Alphagate Systems, http://alphagate.hopto.org/
