From owner-freebsd-hackers Thu Apr 30 12:50:06 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA07421 for freebsd-hackers-outgoing; Thu, 30 Apr 1998 12:50:06 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from misery.sdf.com (misery.sdf.com [204.244.213.32]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id MAA07261 for ; Thu, 30 Apr 1998 12:49:59 -0700 (PDT) (envelope-from tom@sdf.com) Received: from tom by misery.sdf.com with smtp (Exim 1.82 #3) id 0yUyvr-0001D9-00; Thu, 30 Apr 1998 12:23:47 -0700 Date: Thu, 30 Apr 1998 12:23:45 -0700 (PDT) From: Tom To: Snob Art Genre cc: hackers@FreeBSD.ORG Subject: Re: odd network problem In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Thu, 30 Apr 1998, Snob Art Genre wrote: > I have two machines, float and ben. Float is dialed up PPP to > interport, ben is on a T1 from Sprint. I can ping and traceroute either > machine from the other one, but I cannot use TCP-based services. The > TCP handshake completes, and then the connection hangs. For example, if > I'm trying to telnet to float from ben, the handshake happens, and then > ben sends the same 27-byte packet for several minutes until it gives up. > > Meanwhile, telnet/ftp/ssh all work fine from a Solaris/SPARC box and > from a Linux box, to or from float or ben. TCP extensions. FreeBSD always uses them, and some broken routers screw packets with TCP extensions up (primarily some old crappy term serve that I can't remember right now). Most likely your PPP dialup is into one of those boxes. This is an old question. I'm sure it is in the FAQ. Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message