[163325] in North American Network Operators' Group

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Re: IP4 address conservation method

daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Wed Jun 5 12:58:12 2013

Date: Wed, 5 Jun 2013 18:57:51 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: William Herrin <bill@herrin.us>
In-Reply-To: <CAP-guGX=7n+=7kB5FeteTfkn5rVC3eCNPpsicCaWOuY_w-uGvA@mail.gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Wed, 5 Jun 2013, William Herrin wrote:

> Nothing. The problem is that the arp source IP doesn't fall within the
> interface netmask at the receiver. Some receivers ignore that... after
> all, why do they care what the source IP is? They only care about the
> source MAC. Other receivers see a spoofed packet and drop it.

Why wouldn't it be within the source IP mask? I would imagine 
local-proxy-arp would work exactly the same way as if a directly connected 
host with the IP the ARP request was for would have answered.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se


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