marked packets end up in wrong class

Linux Advanced Routing and Traffic Control

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Hello,

I have recently started looking at tc and iptables. I have an htb-queue
with two classes 1:10 and 1:20 where 1:20 is the default. Then I use
iptables to mark all packets I send out on eth1. I then filter marked
packets into class 1:10. I expected all packets sent on eth1 to end up in
class 1:10, but some packets still go to 1:20. Did I do it wrong?

Thank you for any help.

regards,

David Blomberg

My script:
---------------------------------------------------------------------------
/sbin/tc qdisc add dev eth1 root handle 1: htb default 20 r2q 1
/sbin/tc class add dev eth1 parent 1: classid 1:1 htb rate 200kbit burst 15k

/sbin/tc class add dev eth1 parent 1:1 classid 1:10 htb rate 100kbit ceil
200kbit burst 15k
/sbin/tc class add dev eth1 parent 1:1 classid 1:20 htb rate 100kbit ceil
200kbit burst 15k

/sbin/tc qdisc add dev eth1 parent 1:10 handle 10: sfq perturb 10
/sbin/tc qdisc add dev eth1 parent 1:20 handle 20: sfq perturb 10

# iptables
/sbin/iptables -F
/sbin/iptables -A OUTPUT -t mangle -o eth1 -j MARK --set-mark 1


/sbin/tc filter add dev eth1 protocol ip parent 1:0 prio 1 handle 1 fw
flowid 1:10
---------------------------------------------------------------------------

#/sbin/tc -s qdisc ls dev eth1
qdisc htb 1: r2q 1 default 20 direct_packets_stat 0
 Sent 450040 bytes 3021 pkt (dropped 0, overlimits 152 requeues 0) rate
0bit 0pps backlog 0b 0p requeues 0
qdisc sfq 10: parent 1:10 limit 128p quantum 1514b perturb 10sec
 Sent 448654 bytes 2988 pkt (dropped 0, overlimits 0 requeues 0)
 rate 0bit 0pps backlog 0b 0p requeues 0
qdisc sfq 20: parent 1:20 limit 128p quantum 1514b perturb 10sec
 Sent 1386 bytes 33 pkt (dropped 0, overlimits 0 requeues 0)
 rate 0bit 0pps backlog 0b 0p requeues 0







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