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Date:      Fri, 22 Jun 2018 22:05:25 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 229241] pfctl -f /etc/pf.conf blocks loopback interface
Message-ID:  <bug-229241-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D229241

            Bug ID: 229241
           Summary: pfctl -f /etc/pf.conf blocks loopback interface
           Product: Base System
           Version: 11.2-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: delmo@hacknet.eu

Hi all,

there seems to be a problem with pfctl when using the -f switch.

Im using jails on the loopback interface(es) and the problem seems to only
affect lo0 and/or lo1 where are my jails living.

If i use pfctl -f /etc/pf.conf, the traffic on the loopback interface is
blocked. If i enter the command again the interface is working correctly. It
happens exactly every 2nd time.

I have set skip on lo in the ruleset and putting also pass on lo1 into pf.c=
onf,
seems to be a workaround.

In blocked state the jails on lo1 cannot be pinged from the host system and
inside the jails, its not possible to ping localhost. After entering pfctl =
-f
/etc/pf.conf again, everything works perfect. o.0

Im not sure if other rules are affected. At the Moment also the -k switch i=
s to
under suspicion to lock sometimes the lo interfaces. I have 2 servers and 1
workstation with the same problem. My IPFW hosts are working normal.

Best regards Dirk

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