From owner-freebsd-questions Thu Apr 30 09:26:48 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id JAA02963 for freebsd-questions-outgoing; Thu, 30 Apr 1998 09:26:48 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from echonyc.com (echonyc.com [198.67.15.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id JAA02941 for ; Thu, 30 Apr 1998 09:26:39 -0700 (PDT) (envelope-from benedict@echonyc.com) Received: from localhost (benedict@localhost) by echonyc.com (8.8.7/8.8.7) with SMTP id MAA12756 for ; Thu, 30 Apr 1998 12:26:34 -0400 (EDT) Date: Thu, 30 Apr 1998 12:26:33 -0400 (EDT) From: Snob Art Genre To: questions@FreeBSD.ORG Subject: mysterious network problem Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hi there, I am trying to communicate between two machines, float.port.net and ben.tapehouse.net. Both are running FreeBSD-stable as of no earlier than a day or two ago. Float is up via PPP, ben is connected to a T1. Float is running ftpd, telnetd and sshd. I am able to ping it and traceroute to it with no problems. However, when I try to telnet or ssh to it, the following happens: 1 ben.1042 > float.telnet: S 362040755:362040755(0) win 16384 (DF) [tos 0x10] 2 float.telnet > ben.1042: S 1304627245:1304627245(0) ack 362040756 win 17280 (DF) 3 ben.1042 > float.telnet: . ack 1 win 17280 (DF) [tos 0x10] 4 ben.1042 > float.telnet: P 1:28(27) ack 1 win 17280 (DF) [tos 0x10] 5 ben.1042 > float.telnet: P 1:28(27) ack 1 win 17280 (DF) [tos 0x10] 6 ben.1042 > float.telnet: P 1:28(27) ack 1 win 17280 (DF) [tos 0x10] 7 ben.1042 > float.telnet: P 1:28(27) ack 1 win 17280 (DF) [tos 0x10] As far as I understand this: 1-3: connection setup 4-7: ben is trying to do option negotiation or something. Either float's TCP isn't seeing these packets, or it isn't acknowledging them, or the acknowledgements are getting lost somewhere in between. The telnet session gets this far and no further: ben% telnet float Trying 204.180.205.197... Connected to float. Escape character is '^]'. A tech support person from float's ISP reports being able to get a login prompt out of float. I consider myself fairly network-savvy, but could somebody please make a suggestion as to what the bloody hell is going on? Ben is still trying to send those same 27 bytes, and I'm out of ideas. Ben "You have your mind on computers, it seems." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message