From owner-freebsd-questions  Sat Sep 13 21:39:59 1997
Return-Path: <owner-freebsd-questions>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id VAA20832
          for questions-outgoing; Sat, 13 Sep 1997 21:39:59 -0700 (PDT)
Received: from gdi.uoregon.edu (cisco-ts12-line1.uoregon.edu [128.223.150.133])
          by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id VAA20827
          for <questions@FreeBSD.ORG>; Sat, 13 Sep 1997 21:39:56 -0700 (PDT)
Received: from localhost (dwhite@localhost)
          by gdi.uoregon.edu (8.8.5/8.8.5) with SMTP id VAA01033;
          Sat, 13 Sep 1997 21:39:50 -0700 (PDT)
Date: Sat, 13 Sep 1997 21:39:49 -0700 (PDT)
From: Doug White <dwhite@gdi.uoregon.edu>
X-Sender: dwhite@localhost
Reply-To: Doug White <dwhite@resnet.uoregon.edu>
To: Chris <theta@voicenet.com>
cc: questions@FreeBSD.ORG
Subject: Re: Packets disappearing
In-Reply-To: <Pine.SUN.3.96.970913194447.4699A-100000@omni1>
Message-ID: <Pine.BSF.3.96.970913213849.918O-100000@localhost>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-questions@FreeBSD.ORG
X-Loop: FreeBSD.org
Precedence: bulk

On Sat, 13 Sep 1997, Chris wrote:

> I am having a problem with packets on my system disappearing.  I am using
> the new version of User Processs PPP and FreeBSD 2.2.2.  I run a web
> server on a dial up link using Apache and ml.org's dyndns service.  I do
> not have a dedicated IP address.

Yuck.  Standard dialup?

> Occasionally, when I have high traffic on my web server, packets disappear
> for no reason.  Actually, my system won't send packets, but will receive
> them.  I receive SYN requests from hosts and they are visable with netstat
> -n, but my system doesn't actually connect with them, nor will it perform
> a DNS lookup.  All Internet traffic stops.  My site will stop loading for
> people who have already established connections, and all telnet activity
> will stop.

There are some known bugs in ppp that might cause.  Try upgrading your PPP
to the one at http://www.freebsd.org/~brian, also keep an eye on your
routing table (netstat -rn).  Killing routed might help things.

Doug White                              | University of Oregon  
Internet:  dwhite@resnet.uoregon.edu    | Residence Networking Assistant
http://gladstone.uoregon.edu/~dwhite    | Computer Science Major
Spam routed to /dev/null by Procmail    | Death to Cyberpromo