Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 4 Aug 2002 12:13:25 +0200
From:      "eberkut" <eberkut@minithins.net>
To:        <freebsd-ipfw@FreeBSD.ORG>
Subject:   RE: timeout
Message-ID:  <NGBBKNDGKLKPMMNHJJLEIELJCAAA.eberkut@minithins.net>
In-Reply-To: <20020804011900.A1711@rfc-networks.ie>

next in thread | previous in thread | raw e-mail | index | archive | help
yep, that may be useful for state table tuning against
unresponsive/slow/congested connections, thank you.

I suppose these sysctl variables apply to any entry in the
state table, not just TCP ?

btw, the set timeout options for pf are on the
-current man pages. And for information, I join some
configuration examples for the CBAC global timeouts.

! timeouts and thresholds
! time to wait for a connection to reach established state
ip inspect tcp synwait-time 20
! time the session will be still watched after detection of fin exchange
ip inspect tcp finwait-time 10
! TCP idle time (10min because of keepalive)
ip inspect tcp idle-time 600
! UDP idle time
ip inspect udp idle-time 60
! like fin-wait for dns name lookup
ip inspect dns-timeout 5
! half-open nb before start/stop deleting
ip inspect max-incomplete high 400
ip inspect max-incomplete low number 300
! half-open nb per minute start/stop deleting
ip inspect one-minute high 200
ip inspect one-minute low 150
! half-open nb to same dest and block time (minutes)
ip inspect tcp max-incomplete host 50 block-time 15

> Without reading the detailed description of CBAC, from what you
> mention there aren't, the sysctl variables:
> 
> - net.inet.ip.fw.dyn_ack_lifetime
> - net.inet.ip.fw.dyn_syn_lifetime
> etc. etc.
> 
> What you're looking for?
> 
> -- 
> Philip Reynolds                  | Technical Director
> philip.reynolds@rfc-networks.ie  | RFC Networks Ltd.
> http://www.rfc-networks.ie       | +353 (0)1 8832063

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-ipfw" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?NGBBKNDGKLKPMMNHJJLEIELJCAAA.eberkut>