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Date:      Wed, 05 Aug 2020 15:39:52 +0000
From:      bugzilla-noreply@freebsd.org
To:        net@FreeBSD.org
Subject:   [Bug 248474] NAT broken on IPsec/VTI [if_ipsec]
Message-ID:  <bug-248474-7501-f7bA9jUXjF@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-248474-7501@https.bugs.freebsd.org/bugzilla/>
References:  <bug-248474-7501@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248474

--- Comment #16 from Eugene Grosbein <eugen@freebsd.org> ---
(In reply to Michael Muenz from comment #14)

Every transit packet coming from LAN to WAN first passes pfil hooks as inco=
ming
packet before routing lookup for destination, then routing lookup is perfor=
med
to determine outgoing interface, then packes passes pfil hooks second time =
as
outgoing traffic.

If one needs to perform NAT translation for outgoing traffic first and later
IPSEC processing, that must be done this way: configure translation at first
pass  before routing lookup as opposed to more traditional second pass.

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