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From: Florian Westphal <fw@strlen.de>
To: Naruto Nguyen <narutonguyen2018@gmail.com>
Cc: Florian Westphal <fw@strlen.de>,
	netfilter-devel@vger.kernel.org, netdev@vger.kernel.org,
	netfilter@vger.kernel.org
Subject: Re: Question about nf_conntrack_proto for IPsec
Date: Wed, 10 Jul 2019 10:07:30 +0200	[thread overview]
Message-ID: <20190710080730.c4bjujzkqcjxevmf@breakpoint.cc> (raw)
In-Reply-To: <CANpxKHGa6DpV-9n8La7wh6r7MbEZpzGTWOO1AhmhWv072b4LAg@mail.gmail.com>

Naruto Nguyen <narutonguyen2018@gmail.com> wrote:
> Could you please elaborate more on how generic tracker tracks ESP connection?

All protocols that do not have a more specific l4 tracker are tracked
based on l3 protocol + l4 proto number.

IOW, any ESP packet sent between the same endpoint addresses is seen
as matching a single esp flow.

We could easily add the ESP SPI as additional distinction marker if needed.

      reply	other threads:[~2019-07-10  8:07 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-26 11:06 Question about nf_conntrack_proto for IPsec Naruto Nguyen
2019-06-26 11:13 ` Florian Westphal
2019-07-10  6:55   ` Naruto Nguyen
2019-07-10  8:07     ` Florian Westphal [this message]

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