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Date:	Tue, 18 Dec 2007 00:51:36 +0100
From:	Patrick McHardy <>
To:	Chris Friesen <>
Subject: Re: "ip neigh show" not showing arp cache entries?

Chris Friesen wrote:
> Patrick McHardy wrote:
>>  From a kernel perspective there are only complete dumps, the
>> filtering is done by iproute. So the fact that it shows them
>> when querying specifically implies there is a bug in the
>> iproute neighbour filter. Does it work if you omit "all"
>> from the ip neigh show command?
> Omitting "all" gives identical results.  It is still missing entries 
> when compared with the output of "arp".

In that case the easiest way to debug this is probably if you
add some debugging to ip/ipneigh.c:print_neigh() since I'm
unable to reproduce this problem. A printf for all the filter
conditions (=> return 0) at the top should do.

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