Hello Barry, : I'm using TCNG to restrict certain types of traffic to certain ip : addresses using a Linux router, and some masq'd computers behind it. You didn't tell us anything about the networks behind eth1. So, is this host running as an Internet access device? : #define INTERFACE eth1 : : dev INTERFACE { : egress { : : /* In class selection path, the filters come first! DSmark */ : class ( <$video> ) if tcp_sport == 554 && ip_dst == 10.1.1.10; : class ( <$other> ) if 1 ; : : /* section in which we configure the qdiscs and classes */ : : htb () { : class ( rate 3500kbps, ceil 3500kbps ) { : : $video = class ( rate 50kbps, ceil 50kbps ) { sfq; } ; : $other = class ( rate 1000kbps, ceil 3450kbps ) { sfq; } ; : : } : } : } : } : Doesn't seem to be working... Are you able to tell if traffic is classified at all into any classes ("tc -s class show dev eth1")? What happens if you [off-hours] drop your maximum rate (3500kbps) to something much slower (2000kbps)? Are you actually shaping traffic? Presumably, given the above configuration, the host 10.1.1.10 is a client and is located on the network reachable via eth1. The Internet (the source of the tcp/554 packets) must be reachable on another interface. -Martin -- Martin A. Brown --- SecurePipe, Inc. --- mabrown@xxxxxxxxxxxxxx _______________________________________________ LARTC mailing list / LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/mailman/listinfo/lartc HOWTO: http://lartc.org/