Hi! I recently installed h323 netfilter extension on my home firewall/gateway and it works fine! Thanks! But I have a problem with traffic control : I want to give highest priority to real time traffic, like h323. I use HTB queuing discipline with four different priority classes. I use packet marking in netfilter through the mangle table and fw mark option in "tc filter add ..." to send packets in one of the four classes depending on the mark I was expecting that h323 netfilter module should mark all h323 traffic, including RTP and RTCP UDP packets, but it seems that it only marks packets from known ports (those explicitely declared in iptables), and not UDP related packets. Is my analyse right? Thanks in advance for any answer. Yves Acc=E9dez au courrier =E9lectronique de La Poste : www.laposte.net ; 3615 LAPOSTENET (0,13 =80/mn) ; t=E9l : 08 92 68 13 50 (0,34=80/mn)"