Re: Source/Destination matching question..

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On Tue, February 15, 2005 11:41 am, Carl Holtje ;021;vcsg6; said:
> All-
>
> Is there a way to define a rule to combine the following lines:
> -A INPUT -s xxx.xxx.xxx.xxx -d yyy.yyy.yyy.yyy -j DROP
> -A INPUT -s zzz.zzz.zzz.zzz -d yyy.yyy.yyy.yyy -j DROP
>
> ... something like
> -A INPUT -s xxx.xxx.xxx.xxx -s zzz.zzz.zzz.zzz -d yyy.yyy.yyy.yyy -j DROP
>   or even
> -A INPUT -s xxx.xxx.xxx.xxx -s zzz.zzz.zzz.zzz -j DROP

Yes. But that requires an extension match. Quickly, I can think of 3:

o 'recent' match part of mainline kernel since a while.
  You can add your `pool' of ips via /proc.
  See http://www.snowman.net/projects/ipt_recent/

o 'pool' match. You need ippool(8) to feed your pool.

And finally, the best of all:

o 'set' match. Which is part of the ultimate ipset 2.0 (the successor
  to pool match).

  See http://people.netfilter.org/kadlec/ipset/

>
>    which would match a packet from xxx.xxx.xxx.xxx OR zzz.zzz.zzz.zzz to
> yyy.yyy.yyy.yyy...
>
> Thanks!
>
> Carl
>

HTH,
Samuel

> - --
>
> "There are 10 types of people in the world: Those who understand binary
> and those that don't."
>
>





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