linux-kernel - Re: Handling of multiple DHCP OFFERs

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Message-Id: <20111003.192129.745977451712127515.davem@davemloft.net>
Date:	Mon, 03 Oct 2011 19:21:29 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	johnmusbach1@...il.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Handling of multiple DHCP OFFERs

From: John Musbach <johnmusbach1@...il.com>
Date: Mon, 3 Oct 2011 23:18:06 +0000 (UTC)

> Hello, I am configuring a network that'll have multiple DHCP servers
> and I was wondering how Linux handles receiving multiple DHCP OFFERs?
> More specifically, how does it choose which one to prefer and how long
> will it wait for a answer from a preferred server if the other server
> answers first? Thanks.

There are multiple userspace implementations of DHCP, and the kernel
does not usually get involved at all.  You'll therefore have to ask
the folks who write and maintain the various DHCP implementations.
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