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Date:      Sat, 7 Jan 2017 15:58:14 +0100
From:      "O. Hartmann" <ohartmann@walstatt.org>
To:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   VLAN issues with DHCP and routing on recent CURRENT
Message-ID:  <20170107155814.7f51e535@thor.intern.walstatt.dynvpn.de>

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Utilising a PCengine APU 2C4 as a router/gateway/firewall with IPFW running=
 recent
CURRENT (FreeBSD 12.0-CURRENT #24 r311637: Sat Jan  7 11:03:15 CET 2017 amd=
64) I ran out
of the sudden into serious trouble.

I'm running a VoIP wired telephone on a VLAN, tagged with "2". The router p=
rovides on the
same NIC (igb1) a usual LAN with some hosts on a network, say designated 10=
.0.0.0/24. On
the same interface, the VLAN 2 is designated with 10.0.200.0/24. On this ga=
teway, there
is IPFW as default firewalling instance and net/isc-dhcp DHCP Server 4.3.5 =
as DHCP server.

Since around the end of the week two weeks before after an update of the AP=
U to the
recent CURRENT, DHCP stopped serving IPs on all subnets and it wasn't possi=
ble to ping
the LAN 10.0.200.0/24 any more (routing is done via static routes) from 10.=
0.0.0/24. I
can ping all subnets from the gateway/router APU itself without problems.

The fun part is that I didn't change much in the meanwhile, but I did some
reconfigurations on IPFW, but even when completely openingen the IPFW by a =
allow all rule
doesn't solve the problem.=20

It is driving me crazy, since even with the configs it worked before, I don=
't stand a
chance with the recent CURRENT as shown above to restore functionality.

I guess I have a major problem in my configurations and need some advice.

Thanks in advance,

oh

--=20
O. Hartmann

Ich widerspreche der Nutzung oder =C3=9Cbermittlung meiner Daten f=C3=BCr
Werbezwecke oder f=C3=BCr die Markt- oder Meinungsforschung (=C2=A7 28 Abs.=
 4 BDSG).

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