From owner-freebsd-questions@FreeBSD.ORG Thu Nov 4 10:26:47 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3479416A4CE for ; Thu, 4 Nov 2004 10:26:47 +0000 (GMT) Received: from smtp15.wxs.nl (smtp15.wxs.nl [195.121.6.54]) by mx1.FreeBSD.org (Postfix) with ESMTP id EF8F743D53 for ; Thu, 4 Nov 2004 10:26:46 +0000 (GMT) (envelope-from knoppers@astent.nl) Received: from Desktop (ipd50a9808.speed.planet.nl [213.10.152.8]) by smtp15.wxs.nl (iPlanet Messaging Server 5.2 HotFix 1.25 (built Mar 3 2004)) with ESMTP id <0I6N00CFWH0KKZ@smtp15.wxs.nl> for freebsd-questions@freebsd.org; Thu, 04 Nov 2004 11:26:45 +0100 (CET) Date: Thu, 04 Nov 2004 11:26:42 +0100 From: Jan Knoppers In-reply-to: <20041104095710.GA659@happy-idiot-talk.infracaninophile.co.uk> To: 'Matthew Seaman' Message-id: <001501c4c258$c7d74120$9600000a@Desktop> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Mailer: Microsoft Outlook, Build 10.0.6626 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Importance: Normal X-Priority: 3 (Normal) X-MSMail-priority: Normal cc: freebsd-questions@freebsd.org Subject: RE: Is UDP header compression (RFC 2508) supported in FreeBSD X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 04 Nov 2004 10:26:47 -0000 >> Look at the Authors of that RFC. >> >> Compare it with this statement in ppp(8): >> >> vjcomp >> Default: Enabled and Accepted. This option determines if >> Van >> Jacobson header compression will be used. My understanding is that this vjcomp statement relates to TCP/IP header compression only as described in RFC 1144 (Jacobson, V., "TCP/IP Compression for Low-Speed Serial Links", February 1990). This RFC explicitly excludes UDP/IP header compression. RFC 2508 is intended to fill this gap. So, you may very well be right, and I hope you do, but I do not see it documented. Jan