From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Westphal <fw@strlen.de>
Subject: Re: [PATCH v5] netfilter: introduce l2tp match extension
Date: Fri, 3 Jan 2014 15:26:15 +0100
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Cc: netfilter-devel@vger.kernel.org
To: James Chapman <jchapman@katalix.com>
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James Chapman <jchapman@katalix.com> wrote:
> Is there a way in checkentry() to check that a UDP match has also been
> specified, for the case when L2TP UDP encap is being used? This would
> ensure that specific UDP ports are matched.

xt_TCPMSS uses xt_ematch_foreach() in checkentry to verify that -p tcp
--syn was specified.