You must use fwmark setting and not connmark. Mohan -----Original Message----- From: lartc-admin@xxxxxxxxxxxxxxx [mailto:lartc-admin@xxxxxxxxxxxxxxx]On Behalf Of Wayne Sent: Wednesday, August 20, 2003 2:18 PM To: lartc@xxxxxxxxxxxxxxx Subject: [LARTC] FTP Connection Tracking in a Bridge Hello, I have a box running as a bridge and am trying to track the passive FTP sessions by marking them with iptables (CONNMARK option installed) and then trying to pick up the mark using tc filter fwmark. This is not working. I have checked the marking of the packets and this is working fine because I can see the marks when I cat /proc/net/ip_conntrack. Having setup my queues and using the following command: tc filter add dev eth1 parent 1:2 protocol ip prio 1 handle 2 fw classid 1:2a I do not get any traffic going in to this queue. I am running kernel 2.4.21. My question is whether the packet that I have marked is actually every getting to the tc filter. As I am running a bridge, does the packet get marked in iptables PREROUTING, and then go straight to the FORWARD rule and then out. What is the sequence in which iptables processes the packet and then the tc filter processes the packet. Many thanks Wayne
