m0n0wall bug(?) when using IPv6

Antonios Atlasis <[email protected]> Sat, 31 May 2014 12:15:59 +0300
Newsgroups gmane.comp.security.firewalls.m0n0wall
Message-ID <CADoTVZKLC+a3UbwAjxBLppoXGeTc+Wav4jWO-GAoZT6K2PhcDg@mail.gmail.com>
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Dear list,

a couple of days ago I installed the latest m0n0wall release (version
1.8.1) to my ALiX box and I configured it to use IPv6 too (IPv6 mode at WAN
interface: PPP, at LAN: DHCP-PD and sending RA messages at the LAN
interface too).

Although my laptop got an IPv6 address, I realised that in order to access
a web site using IPv6, access was blocked and there was a log message that
the outgoing traffic at this specific site had been blocked at the LAN
interface. So, I added an IPv6 rule at the LAN interface from "LAN net " ->
any to allow IPv6 traffic and it worked!

Weird, I thought because I had assumed that this was the case by default
(to allow outgoing traffic) but no big deal.

Next day, after shutting down and starting up again m0n0wall, I faced the
same problem. Outgoing IPv6 traffic was blocked although my laptop had got
a unicast IPv6 address, but the rule that I had added was still there too.
I confirmed that there were similar logs that showed that the outgoing
traffic was blocked. I "Edit" the rule, then I DID NOT change anything, I
pressed "Save", "Apply", and it worked again.

Has anyone else experienced similar problem? Am I missing sthg?

Best

Antonios

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