pf and keep/modulate state on 6.2

Ted Mittelstaedt tedm at
Mon Feb 26 01:01:34 UTC 2007

any reason you need to use pf instead of ipfw?


----- Original Message ----- 
From: "J.D. Bronson" <jbronson at>
To: <freebsd-questions at>
Sent: Sunday, February 25, 2007 2:02 PM
Subject: pf and keep/modulate state on 6.2

> I was noticing sporadic FTP transfers DOWN to my fbsd 6.2 machine
> over my DSL would go/pause/go/pause - just a bit, but
> overall slowed the transfers down quite a bit.
> I looked at my pf.conf file and changed MODULATE state to KEEP state
> in all places and my issues went clean consistent downloads.
> If I changed it back...the issues came back.
> is this expected behavior? - the machine is a p4-3.06 with 1GB ram
> and hardly doing anything but PPPoE and pf with NAT.
> Anyone have any comments they could share?
> -JD
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