From owner-freebsd-hackers Thu May 25 10:08:25 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id KAA00873 for hackers-outgoing; Thu, 25 May 1995 10:08:25 -0700 Received: from mpp.com (dialup-2-153.gw.umn.edu [134.84.101.153]) by freefall.cdrom.com (8.6.10/8.6.6) with ESMTP id KAA00867 for ; Thu, 25 May 1995 10:08:19 -0700 Received: (from mpp@localhost) by mpp.com (8.6.11/8.6.9) id MAA00815 for hackers@freebsd.org; Thu, 25 May 1995 12:07:29 -0500 From: Mike Pritchard Message-Id: <199505251707.MAA00815@mpp.com> Subject: Speeding up your slip link To: hackers@FreeBSD.org Date: Thu, 25 May 1995 12:07:29 -0500 (CDT) X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Length: 776 Sender: hackers-owner@FreeBSD.org Precedence: bulk Just in case anyone is interested, one way I found to squeeze a few more bytes through your SLIP link is to set "tcp_extensions=NO" in your /etc/sysconfig file. This disables the RFC1323 & RFC1644 extensions, which are really intended for high speed links. In fact, RFC1323 even suggests disabling it on slow links. If you don't normally connect to other hosts that support RFC1323 and RFC1644 then you won't see any difference. To determine if a host you are connecting to supports RFC1323, try examining some traffic to/from that machine with "tcpdump". If it indicates that the "timestamp" option was present, then it is sending the extra RFC1323 data. -- Mike Pritchard pritc003@maroon.tc.umn.edu "Go that way. Really fast. If something gets in your way, turn"