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Re: [2.4 PATCH] bugfix: ARP respond on all devices

To: Willy Tarreau <willy@xxxxxxxxx>
Subject: Re: [2.4 PATCH] bugfix: ARP respond on all devices
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Sun, 17 Aug 2003 22:31:18 -0700
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On Mon, 18 Aug 2003 00:48:49 +0200
Willy Tarreau <willy@xxxxxxxxx> wrote:

> On Sun, Aug 17, 2003 at 06:24:06PM +0100, Alan Cox wrote:
> > So stick the address on eth0 not on lo since its not a loopback but an eth0
> > address, then use arpfilter so you don't arp for the invalid magic shared IP
> > address, or NAT it, or it may work to do
> > 
> >          ip route add nexthop-addr src my-virtual-addr dev eth0 scope local 
> > onlink
> >          ip route add default src my-virtual-addr via nexthop-addr dev eth0 
> > scope global
> I have a case where this doesn't work

Replying again... Alan does mention in the paragraph you've quoted
to use arpfilter, which works for every case imaginable.

The facilities to solve these problems are there, people simply
don't want to use them.

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