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Date:      Fri, 27 Feb 2009 01:19:58 +0100
From:      Adrian Penisoara <ady@freebsd.ady.ro>
To:        Shawn Everett <shawn@tandac.com>
Cc:        freebsd-net@freebsd.org
Subject:   Re: FreeBSD Router Problem
Message-ID:  <78cb3d3f0902261619t71a054fet43779c37e2981603@mail.gmail.com>
In-Reply-To: <3853.206.108.16.89.1235693214.squirrel@alder.hosix.com>
References:  <3650.206.108.16.89.1235691792.squirrel@alder.hosix.com> <3853.206.108.16.89.1235693214.squirrel@alder.hosix.com>

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Hi,

On Fri, Feb 27, 2009 at 1:06 AM, Shawn Everett <shawn@tandac.com> wrote:

> Sorry I meant to say FreeBSD 7.0 :)
>
> > Hi Guys,
> >
> > Here's a weird one...  I set up FreeBSD 5.2 to act as a router.  I used
> > the pf.conf script shown at:
> > http://www.openbsd.org/faq/pf/pools.html#outgoing
> >
> > Everything works just fine.  Traffic is appropriately load balanced and
> > things work as expected.
> >
> > Strangely after a few hours something just stops routing traffic.  I
> can't
> > ping the remote gateways either.  Both external interfaces still show the
> > correct IP addresses.  Rebooting the BSD box solves the problem.  Nothing
> > else gets rebooted.


 Any error messages in dmesg output ?
 Significant changes in "netstat -m" output before and after ?
 The same for "pfctl -s all" output...


>
> >
> > Any suggestions would be appreciated.


Try tcpdump'ing on the router's interfaces an on the source machine and
compare the packet flows -- do the packets reach the router ? Do they
attempt to pass to the outside ?

Regards,
Adrian.



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