Re: CONNTRACK and pppoe interfaces - marking does not work

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Le 01/08/2016 à 22:28, Yan Seiner a écrit :
This is driving me nuts.  I've spent most of the day trying to figure
out why marking packets does not work.  I've now isolated the problem to
where I believe that neither MARK nor CONNMARK targets work on a pppoe
interface.

This assumption is of course wrong. iptables and conntrack don't care about the interface type.

Here's what I have:

eth0.9 - cable interface with DHCP: xxx.158.166.12
eth0.8 - DSL interface with pppoe: xxx.251.62.82

and here's how I mark them (I've also tried marking on PREROUTING):

iptables -t mangle -A INPUT -i ${dsl_if} -j CONNMARK --set-mark 0x02/0x02
iptables -t mangle -A INPUT -i ${cable_if} -j CONNMARK --set-mark 0x01/0x01

What is the value of ${dsl_if} ? It should be pppN, created by pppd with N=0, 1, 2...
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