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Thread: tc filters and libpcap
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- Join Date
- Jun 2011
tc filters and libpcap
Im attempting to use tc to shape traffic sent using libpcap (well, actually tcpreplay, which is based on libpcap). I'm doing this for a research project.
i have a prio scheduler with a default band 2:
tc qdisc add dev eth0 root handle 1: prio priomap 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
with two filters attached to it:
tc filter add dev eth0 protocol ip parent 1: prio 1 u32 match ip dport 80 0xffff flowid 1:1
tc filter add dev eth0 protocol ip parent 1: prio 2 u32 match ip dport 443 0xffff flowid 1:2
(disregard the port numbers, they're here just as an example)
When sending actual traffic, the filters work and I see the appropriate traffic entering the right class. BUT when replaying captured traffic (with the appropriate port numbers) over eth0 using
tcpreplay, all packets end up in the default band 2 as if the filters simply refuse to work.
Can anyone suggest a solution?