From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next-2.6] ipv4: add LINUX_MIB_IPRPFILTER snmp
 counter
Date: Thu, 03 Jun 2010 03:19:43 -0700 (PDT)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 03 Jun 2010 00:05:27 +0200

> [PATCH net-next-2.6] ipv4: add LINUX_MIB_IPRPFILTER snmp counter
> 
> Christoph Lameter mentioned that packets could be dropped in input path
> because of rp_filter settings, without any SNMP counter being
> incremented. System administrator can have a hard time to track the
> problem.
> 
> This patch introduces a new counter, LINUX_MIB_IPRPFILTER, incremented
> each time we drop a packet because Reverse Path Filter triggers.
> 
> (We receive an IPv4 datagram on a given interface, and find the route to
> send an answer would use another interface)
> 
> netstat -s | grep IPReversePathFilter
>     IPReversePathFilter: 21714
> 
> Reported-by: Christoph Lameter <cl@linux-foundation.org>
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied.