Re: libpcap filter syntax

[alex medvedev <alexm () pycckue org>]

hallo,

see inline :)

-alexm
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On Tue, 22 Jul 2003, M. Onur ERGiN wrote:
> I am trying to forward some broadcasted packets in the
> air. I set the filter as "port 2048", capture the
> packet and broadcast it again. I want to do this once
> per packet. but since I again send a packet to port
> 2048, it captures and sends it again and again in an
> endless loop.
>
> anyone having any idea about a better filter? like
> "port 2048 and not originated by me(!)"... :)

maybe "port 2048 and not src your_source_ip_addr" ?

> and is there a way to detect which ethX device is the
> wireless one (in a C program)?

if it's linux with /proc, then check for /proc/net/wireless in the first
column :)
don't know otherwise.

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