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Date:      Tue, 13 Mar 2018 20:00:53 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-pf@FreeBSD.org
Subject:   [Bug 226411] PF does not properly keep state with GRE in IPSec
Message-ID:  <bug-226411-17777-yJIXYPIxnU@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-226411-17777@https.bugs.freebsd.org/bugzilla/>
References:  <bug-226411-17777@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D226411

--- Comment #4 from Eric Dombroski <eric@edombroski.com> ---
Correction/clarification:

Setting "set skip on gre0" indeed allows the traffic to go through, but doe=
sn't
allow any control of traffic over the tunnel.=20=20

The following /etc/pf.conf configuration does NOT work as expected:


set block-policy drop
set loginterface egress
set skip on lo0

#default block rules
block log all

# allow in from other host
pass in quick on vmx0 from 10.10.10.0/24

# pass in from gre0
pass in quick on gre0 to 10.6.0.0/23

# allow all in from lan subnet
pass in quick from 10.6.0.0/23

# pass all output packets
pass out quick

--=20
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