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Date:      Mon, 13 Apr 1998 02:09:52 -0700
From:      David Greenman <dg@root.com>
To:        Marc Slemko <marcs@znep.com>
Cc:        freebsd-bugs@hub.freebsd.org
Subject:   Re: misc/6276: Can't connect to www.FreeBSD.org 
Message-ID:  <199804130909.CAA03257@implode.root.com>
In-Reply-To: Your message of "Sun, 12 Apr 1998 11:40:01 PDT." <199804121840.LAA15447@hub.freebsd.org> 

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>The following reply was made to PR misc/6276; it has been noted by GNATS.
>
>From: Marc Slemko <marcs@znep.com>
>To: ehm@cris.com
>Cc: freebsd-gnats-submit@FreeBSD.ORG
>Subject: Re: misc/6276: Can't connect to www.FreeBSD.org
>Date: Sun, 12 Apr 1998 12:36:41 -0600 (MDT)
>
> On Sat, 11 Apr 1998 ehm@cris.com wrote:
> 
> > >Description:
> > My home office has three systems: and Indy running IRIX 6.2, an
> > i586 running FreeBSD 2.2.5, and an i386 also running FreeBSD 2.2.5.
> > All three systems are connected via ethernet.  The i386 serves as
> > gateway to the internet using a 28.8K modem and the user PPP software
> > package configured for demand dialing.  Both the Indy and the i586
> > can route TCP/IP traffic through the gateway onto the Internet.
> > I have Netscape Communicator version 4.04 for the Indy and Netscape
> > Communicator version 4.05 for the i586.  Everything works fine on
> > both systems until I try to reach the URL "http://www.freebsd.org".
> > The Indy system has no problem reaching the FreeBSD web site.
> > However, when I try to reach the same site with the i586 running
> > FreeBSD 2.2.5, I get the following error from Netscape:
> 
> This is almost certainly due to a broken router or router config not
> sending ICMP can't fragment errors, since both www.apache.org and
> www.freebsd.org have path MTU discovery enabled.

   If this is true, then a quick test would be if ftp.freebsd.org (wcarchive)
works okay - PMTU Discovery is disabled on that machine.

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project

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