Samit wrote:
Hi,
I want a way to traffic shape pppoe encapsulated pkts based on its
src/dst Ip address. Is there any way I can mark pppoe encapsulated pkts?
I don't know what you can do with iptables now it's X tables.
If you have the ppp interface on the shaping/netfilter box then you will
see ip from/to it anyway.
If the pppoe is just passing through then you should be able to make a
u32 filter to match parts of the packet. Use tcpdump -e to see the
ethertype protocol number for pppoe data frames and make a filter to
match that number, then I guess the IP part will be at an offset of 8
more than the normal offsets. You will need to use u32 to match the
src/dst addresses in hex. I have never done it, but it should be possible.
tc filter add dev $DEV protocol $PPPOE prio 1 u32 match u32 0xc0a80001
0xffffffff at 20 flowid ....
should match src 192.168.0.1 use "at 24" for dst.
Andy
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