Re: [LARTC] Filtering packets with U32

Linux Advanced Routing and Traffic Control

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On Sun, 13 Apr 2003, openings wrote:

> hi.
>
> I want to filter packets that's source address is 192.168.0.1 or 192.168.0.25 or 192.168.0.0/28.
>
> # tc filter add dev eth0 parent 1: protocol ip prio 1 u32 match ip src 192.168.0.1 flow id 1:30
> # tc filter add dev eth0 parent 1: protocol ip prio 1 u32 match ip src 192.168.0.25 flow id 1:30
> # tc filter add dev eth0 parent 1: protocol ip prio 1 u32 match ip src 192.168.0.0/28 flow id 1:30
>
> But the above command need to execute tc   three times.
>
> Can I filtering it with one line tc command?

You can try -batch switch. It takes a file to pasrse and run commands from
there. So, you can run once tc command...

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