From owner-freebsd-hackers Sat Sep 26 17:33:05 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA11012 for freebsd-hackers-outgoing; Sat, 26 Sep 1998 17:33:05 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from implode.root.com (implode.root.com [198.145.90.17]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA11005 for ; Sat, 26 Sep 1998 17:33:04 -0700 (PDT) (envelope-from root@implode.root.com) Received: from implode.root.com (localhost [127.0.0.1]) by implode.root.com (8.8.5/8.8.5) with ESMTP id RAA17588; Sat, 26 Sep 1998 17:33:40 -0700 (PDT) Message-Id: <199809270033.RAA17588@implode.root.com> To: Tony Jones cc: hackers@FreeBSD.ORG Subject: Re: TCP (http) problem In-reply-to: Your message of "Sat, 26 Sep 1998 17:00:59 PDT." <199809270000.RAA00288@zebedee.local> From: David Greenman Reply-To: dg@root.com Date: Sat, 26 Sep 1998 17:33:40 -0700 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >Eventually the http connection will time out. > >I've upgraded -stable, the Linux version of Netscape to v4.06, tried my old >BSD Netscape 3.0 all with the same results. The BSD Netscape _used_ to work >fine, as did the Linux versions. > >I posted to -stable and someone suggested I disable TCP extensions (I'd already >tried this) and also to try sending large ICMP packets (1472) to see if it was >a fragmentation problem. The pings worked fine. It sounds like a problem with Path MTU Discovery. Your ISP is probably blocking outbound "ICMP_UNREACH_NEEDFRAG" messages. You might try setting a smaller MTU/MRU on your PPP connection (I suggest 552). -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message