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Re: [LARTC] Routing problem (RTNETLINK answers: Invalid argument) on mu

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Subject: Re: [LARTC] Routing problem (RTNETLINK answers: Invalid argument) on multiple internet link.
From: Paul Viney <paul@diasoft.nl>
Date: Thu, 15 Feb 2007 00:30:45 +0100
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Wow! That made a difference. One 
echo "0" > /proc/sys/net/ipv4/conf/eth1/rp_filter
and everything started working. 
Thanks a lot Torsten and Alex - I wouldn't have solved it without your 
suggestions.

Paul Viney


On Wednesday 14 February 2007 21:17, Torsten Luettgert wrote:
> This is one of my favourites :-)
>
> Usually that problem is caused by the rp_filter feature, which silently
> drops packets that arrive on an interface answers wouldn't be routed to.
>
> Just try
>
> for i in /proc/sys/net/ipv4/conf/eth*/rp_filter; do
>       echo 0 > $i
> done
>
> and see if that helps.
> (indeed, you don't really need to switch it off for all of them, just
> the uplink interfaces would be enough)
>
> Hth,
> Torsten
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