Re: double packet

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On Tue, Dec 20, 2005 at 12:34:25PM +0100, Marco Berizzi wrote:
> Good morning Bill.
> I think I have found the "feature": /proc/sys/net/ipv4/conf/*/log_martians
> Enabling it and then dmesging I see:
> 
> Dec 20 10:18:42 Pleiadi kernel: martian source 'HDSL_public_network_host' 
> from 'ADSL_IP', on dev eth0
> Dec 20 10:18:42 Pleiadi kernel: ll header: 
> 00:60:97:d8:e5:01:00:07:50:7e:65:e0:08:00
> 
> So I think linux will drop these packets anyway (they will even not reach 
> netfilter I think):
> may anyone confirm this?

They get dropped by the rp_filter. If you disable the rp_filter, they
don't get dropped (or logged) anymore...

Have a nice day,
-- 
Martijn van Oosterhout   <kleptog@xxxxxxxxx>   http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.

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