Re: [LARTC] how can i filter for a range of ports?

Linux Advanced Routing and Traffic Control

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On Wednesday 16 April 2003 13:14, Mattias Ahnberg wrote:
> >> "AS" == Adam Schrader <schrader2k2@xxxxxxxxx> writes:
>
> AS> how can i filter for a range of ports? I have seen people use
> AS> 1024:32000 when saying from port 1024 to 32000 but tc doesnt
> AS> accept this? can somebody tell me how i can do this? -thanks
>
> iptables -A INPUT -p tcp --dport 1024:65535 -j ACCEPT
>
> Should do what you want. iptables is very limited in defining ranges,
> multiple hosts and similar ranges compares to ipfw2. I hope this will
> change sometime in the future since it would highly simplify the
> definitions of large rulesets.
There is an iptables patch to do this :
http://www.netfilter.org/documentation/pomlist/pom-base.html#mport

Example :
iptables -A FORWARD -p tcp -m mport --ports 23:42,65

Stef

-- 

stef.coene@xxxxxxxxx
 "Using Linux as bandwidth manager"
     http://www.docum.org/
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