[LARTC] Multiple network cards on same subnet problem (arp_filter=1)

From: Simon Haynes <simon@baydel.com>
To: lartc@vger.kernel.org
Subject: [LARTC] Multiple network cards on same subnet problem (arp_filter=1)
Date: Thu, 19 May 2005 15:17:43 +0000	[thread overview]
Message-ID: <2184C5E025BB@baydel.com> (raw)
In-Reply-To: <427696B4.6030201@vulnscan.org>

I am having the same problems as detailed in the mailing list on the 2 May 
2005 with the subject   

[LARTC] Multiple network cards on same subnet problem (arp_filter=1)

http://mailman.ds9a.nl/pipermail/lartc/2005q2/015788.html

I want to set up three physical interfaces on the same subnet but only
one interface responds to all. I have tried setting arp_filter, arp_ignore and
arp _announce. I am running kernel 2.6.12-rc1 

This is my setup
th0      Link encap:Ethernet  HWaddr 00:05:70:00:00:02
          inet addr:10.0.0.1  Bcast:10.255.255.255  Mask:255.0.0.0

eth1      Link encap:Ethernet  HWaddr 00:05:70:80:00:01
          inet addr:10.0.0.2  Bcast:10.255.255.255  Mask:255.0.0.0

eth2      Link encap:Ethernet  HWaddr 00:05:70:C0:00:01
          inet addr:10.0.0.3  Bcast:10.255.255.255  Mask:255.0.0.0

I have tried to use the fix detailed in the list  

# ip rule add from 10.0.0.1 lookup 10
# ip route add table 10 default src 10.0.0.1 dev eth0

etc.

but the command fails as shown

-bash-2.05b# ip rule add from 10.0.0.1 lookup 10
RTNETLINK answers: Invalid argument
-bash-2.05b#

Is there something else I need to do ?

Cheers Simon

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