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From: Damion de Soto <damion@snapgear.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] IPsec and u32 filters
Date: Thu, 22 Jan 2004 23:46:32 +0000	[thread overview]
Message-ID: <401060D8.6080301@snapgear.com> (raw)
In-Reply-To: <20040122113316.GA2014@keppler.vrg.de>

Cord Buhlert wrote:
> how can I filter IPsec traffic with u32 filters?
> I know IPsec needs Port 500/UDP and IP protocols 50 and 51. I know how
> to get the port stuff, but how can I make u32 to match the protocol
> number?
Same as matching tcp packets:

match ip protocol 0x32 0xff
(ESP proto 50)
or
match ip protocol 0x33 0xff
(AH proto 51)

regards

-- 
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      reply	other threads:[~2004-01-22 23:46 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-22 11:33 [LARTC] IPsec and u32 filters Cord Buhlert
2004-01-22 23:46 ` Damion de Soto [this message]

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