Hi all, I am wondering if anyone can help me to resolve a problem. I am trying to use tc command in linux to drop udp packets of specific diffserv value. I am able set diffserv value successfully in the udp packet using command:- [root@scotch src]#iptables --table mangle --append OUTPUT \ --out-interface eth0 --protocol udp --source-port 5060 \ --jump DSCP --set-dscp 8 but i am not able to drop a packet with a specific diffserv value. i have worked out a command, but its not working:- [root@scotch src]#tc filter add dev eth0 protocol ip u32 match ip dsfield 8 police drop its showing error "Illegal "match". Can any one of you guide me , what is the correct way of doing it. Its imporatnt, Please post reply ASAP. Raghuvendra Raghuvendra Kumar | BTSL 414 | Ext 011-41619770 | Desk +91-9818143739 | Mobile raghuvendra.kumar@xxxxxxxxxxxxxxxxxx | EMail _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc