match ip dst works, match ip dport doens't.

Linux Advanced Routing and Traffic Control

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Hi, 

I'm trying to limit the maximum outbound bandwidth for each destination
port using "match ip dport $port 0xffff" u32 classifier. But it seems
that it's not filtered by this classifier. I'm using kernel 2.4.24 with
almost all filter-related options configured, and tc patched to support
HTB.

Below is all commands I used to configure the outbound rate.
-------------------------------
$TC qdisc del dev eth0 root > /dev/null 2>&1
$TC qdisc add dev eth0 root handle 1: htb
$TC class add dev eth0 parent 1: classid 1:1 htb rate $RATEmbit ceil
$RATEmbit
$TC filter add dev eth0 parent 1: protocol ip prio 1 u32 match ip dport
$PORT 0xffff flowid 1:1
-------------------------------

Please let me know what i'm probably doing wrong or missing. 

Thanks in advance.

::::::::::::::::::::::::::::::::::::::::::::::::::::::
Q-ha Park

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