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Date:      Sat, 07 Feb 2009 17:19:15 +0100
From:      Ivan Voras <ivoras@freebsd.org>
To:        freebsd-performance@freebsd.org
Subject:   Re: Limiting open port RST response from 247 to 200 packets per second
Message-ID:  <gmkcaq$8b7$1@ger.gmane.org>
In-Reply-To: <4b008f7d0902060644o62a3942lf63ff6689c3b4d94@mail.gmail.com>
References:  <4b008f7d0902060644o62a3942lf63ff6689c3b4d94@mail.gmail.com>

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Alex Dehaini wrote:
> Hi Guys,
>=20
> I have some issues with Squid on Freebsd. I am running FreeBSD release =
4.9
> and Squid version 2.5.
>=20
> I have setup FreeBSD as a bridge so that all traffic from my network ca=
n
> transparently pass through the FreeBSD server. I am running Squid on th=
e
> same server and I created an ipfw rule to redirect port 80 to port 3128=
=2E
>=20
> Normally, when Squid is not started - we see traffic close to 30MB flow=
ing
> through the server. Immediately I start squid, the traffic drops to hal=
f and
> sometimes lower and stays there. When this happens, I have a lot of cli=
ents
> that will call and complain they can't access the Internet. At the same=

> time, I get these log messages
>=20
> *Feb  5 20:39:44 myserver /kernel: Limiting open port RST response from=
 247
> to 200 packets per second
> Feb  5 20:39:44 myserver /kernel: Limiting open port RST response from =
247
> to 200 packets per second

> When I stop Squid, everything returns to normal. Any idea what is causi=
ng
> this. I will appreciate any help.

RST response means a client has tried to connect to a TCP port and
didn't succeed. In your case, is squid actually doing anything? Are
there any traffic in your logs?

By increasing icmplim you only lifted the supression of the outgoing RST
packets, you didn't solve your problem.


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