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Re: Default Gateway, PF, BAD State
- To: misc_(_at_)_openbsd_(_dot_)_org
- Subject: Re: Default Gateway, PF, BAD State
- From: Joachim Schipper <j_(_dot_)_schipper_(_at_)_math_(_dot_)_uu_(_dot_)_nl>
- Date: Thu, 6 Apr 2006 12:35:47 +0200
- Mail-followup-to: misc_(_at_)_openbsd_(_dot_)_org
On Thu, Apr 06, 2006 at 01:15:53AM +1200, Joshua Sandbrook wrote:
> Hello There.
> Ive got two openbsd gateways:
> 192.168.3.253 +192.168.4.254 - gateway to 192.168.4.0/24 subnet. this
> obsd box has a default gateway set to 192.168.3.254, and all hosts on
> the 192.168.4.0/24 subnet have their gateway set to 192.168.4.254. PF
> turned OFF.
> 192.168.3.254 - gateway to the internet, is set as default gateway for
> hosts on the 192.168.3.0/24. This box has a route set for 192.168.4.0/24
> to 192.168.3.253.
> Now then... What happens is when a workstation ( 192.168.3.0/24 hosts )
> trys to transfer a file to a host on the 192.168.4.0/24 subnet, it
> transfers around 60Kb, before it hangs and starts eventually times out
> or gets reset. This is with pf turned ON on the 192.168.3.254 box. Rules
> are to pass out and pass in everything.
> I 'set debug loud' in pf.conf, and in /var/log/messages lots of these
> types of messages showed up:
> Apr 6 17:21:31 sidb /bsd: pf: BAD state: TCP 192.168.3.222:33085
> 192.168.3.222:33085 192.168.4.51:22 [lo=2515403070 high=2515336655
> win=49640 modulator=0] [lo=0 high=49640 win=1 modulator=0] 2:0 A
> seq=2515403070 ack=0 len=1460 ackskew=0 pkts=64:0 dir=out,fwd
> Now, if I turn pf OFF, everything works fine. And if I manually add a
> route to a workstation for 192.168.4.0/24 then it also works fine,
> because it then does not use the 192.168.3.254 gateway to get to
> So then... any ideas how to fix this?
No, but the fact that you claim 192.168.3.0/24 can get to 192.168.4.0/24
without going through the router means either one of us is confused or
your network is set up in a rather strange way.