Hi! I'm new on the list and I'm Hungarian so please forgive my terribly bad English. First greetings to all. I want to create a Linux box which will be act as a rate limiter ( with tc ) and an IP<->MAC checker ( now iptables on br0 ). I have three interfaces. Two Gigabits ( eth1 and eth2 ) and 100Mbps ( eth0 ) for management. On the eth1 and eth2 there are approx 60 802.1Q tagged VLANs so I don't want to create one bridge for every single VLAN. I want to use one bridge. This is br0. I set up iptables it's mainly stands lines like -A <chain> -m mac --mac-source <...> -s <...> -j ACCEPT then DROP without -m mac stuff. Then I set up tc on eth1 and eth2 using HTB, PRIO and SFQ. The classifier was U32. The bridge and the iptables worked ( the counters increased ) . I can arping from a machine from the eth1 interface to another machine on the eth2 interface. The tc didn't worked, the classifer didn't matched any packet ( I used ip dst addr/32 ). I thought this is because the 4 byte 802.1Q header. I tried to correct this but suddenly the bridge was stopped. ( There wasn't outgoing traffic on one interface. Only one, the second was okay. ) I'm using Gentoo with 2.6.16-gentoo-r9 kernel. Did I something wrong? Is this configuration/idea good? Or is there any fundamental errors? Expected somebody this symptoms? Any helps or ideas are welcome. Thanks, Arpad