netdev - Re: [PATCH v2 nf-next 1/6] net: untangle ip

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Message-Id: <20150317.131250.1794140944101735383.davem@davemloft.net>
Date:	Tue, 17 Mar 2015 13:12:50 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	fw@...len.de
Cc:	pablo@...filter.org, netfilter-devel@...r.kernel.org,
	netdev@...r.kernel.org, azhou@...ira.com
Subject: Re: [PATCH v2 nf-next 1/6] net: untangle ip_fragment and bridge
 netfilter

From: Florian Westphal <fw@...len.de>
Date: Tue, 17 Mar 2015 11:11:52 +0100

> And doing route lookups will break things for some people, we have zero
> guarantee that a bridge has the needed routing information,
> its valid to not even configure a default gateway on a bridge.

Then without a proper route you absolutely cannot choose an
appropriate MTU from which to perform fragmentation.

Just accept that basic fact.
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