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Date:      Fri, 25 Feb 2011 14:31:19 -0800
From:      Jeremy Chadwick <freebsd@jdc.parodius.com>
To:        Vincent Hoffman <vince@unsane.co.uk>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: 8.2-RELEASE pf rules not loading
Message-ID:  <20110225223119.GA13109@icarus.home.lan>
In-Reply-To: <4D682BFE.9050702@unsane.co.uk>
References:  <4D67E2BC.6070202@unsane.co.uk> <AANLkTin9ZHd%2BABKm6Z_ek9QD1CVKmb9W-bRe2ZRYj1pn@mail.gmail.com> <4D682BFE.9050702@unsane.co.uk>

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On Fri, Feb 25, 2011 at 10:23:58PM +0000, Vincent Hoffman wrote:
> On 25/02/2011 17:35, Josh Carroll wrote:
> >> Hi All,
> >>            Just upgraded my home machine to 8.2-RELEASE via
> >> freebsd-update remotely (spare time at work.) and on reboot my pf
> >> ruleset isnt being loaded. running '/etc/rc.d/pf start' once its booted
> >> does start it fine though. Any suggestions on debugging or shall i just
> >> try a verbose boot and watch the console when I get home?
> >> I still have
> >>
> >> pf_enable="YES"                  # Set to YES to enable packet filter (pf)
> >> pflog_enable="YES"               # Set to YES to enable packet filter
> >> logging
> >>
> >> in /etc/rc.conf
> > Is your interface dynamic (e.g. using DHCP)? If so, you might try changing:
> >
> > ifconfig_<ifacename>="DHCP"
> >
> > to
> >
> > ifconfig_<ifacename>="SYNCDHCP"
> >
> > It's possible the network hasn't come up properly yet or there is no
> > IP assigned.
> >
> > Failing that, you can set:
> >
> > rc_debug="YES"
> >
> > in rc.conf then watch at boot time if there are any odd messages when
> > it attempts to start pf.
> >
> It turns out that its sort of related to this. I have an IPv6 tunnel
> from H.E. (tunnelbroker.net) and from looking at the boot output, it
> looks like the IPv6 addresses (for any of my imterfaces) aren't applied
> until after pf starts. I'd say this is a bug, Oddly this didnt happen
> for the release candidate I tried, although I think I may have modified
> my rules and not rebooted until I upgraded.
> the rules in question are:
> 
> pass in quick on $gif_if inet6 proto udp to $ext_if port $udp_services
> keep state
> and
> pass in quick on $gif_if inet6 proto tcp to $ext_if port $tcp_services
> $sf_tcp
> (ext_if = "ue0")
> 
> I'll try changing $ext_if to the ipv6 address and see if that helps.

Please look at pf.conf(5) and search for the word "parentheses" (should
be under the "from x to x" section.  This might resolve your problem.

-- 
| Jeremy Chadwick                                   jdc@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.               PGP 4BD6C0CB |




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