From owner-freebsd-net@FreeBSD.ORG Tue Jan 19 12:14:55 2010 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id DA18D1065670 for ; Tue, 19 Jan 2010 12:14:55 +0000 (UTC) (envelope-from fernando.gont.netbook.win@gmail.com) Received: from mail-gx0-f177.google.com (mail-gx0-f177.google.com [209.85.217.177]) by mx1.freebsd.org (Postfix) with ESMTP id 910E78FC23 for ; Tue, 19 Jan 2010 12:14:55 +0000 (UTC) Received: by gxk25 with SMTP id 25so396807gxk.13 for ; Tue, 19 Jan 2010 04:14:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:message-id:date:from :user-agent:mime-version:to:subject:x-enigmail-version:openpgp :content-type:content-transfer-encoding; bh=DpOwYxKND4Y8/LqOf2hggnKQ6mtXMtU4b6UBGS+RXEg=; b=UJLPuYaR8C7f3QooNGVmQ0sRyvSQnLyJyjJFyrtHjSw2hjFlYPsAvGoiyc9s4pyE/g gRWhAtCBO2XktsYQHxOr1HCKEGd8Yg/4k1xWKH+QhLDgqdlohNxy6ta+A8qmxU9P26KD rLDKc8lqLsxSYqFrjygRDNHwCPtx6u9pDHu58= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:subject :x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=cgwNiXOlo7KDDC7ndwcuev9NSKK27/QGPuXdwMDCQ1Az+pYtgZ8QA3/kqA4OwbLcbJ zsRR56DvJwptvWOVlN9p6/Yqhe0FkBeAu1pXTBrEnF39mZNAphyxZcy4+6zuvjMKWE/m 3CXpo2sW1JvcdcARd6qY/rS3mjYQK4TIBoj4g= Received: by 10.150.74.18 with SMTP id w18mr7390186yba.223.1263902403717; Tue, 19 Jan 2010 04:00:03 -0800 (PST) Received: from ?192.168.0.151? (129-130-17-190.fibertel.com.ar [190.17.130.129]) by mx.google.com with ESMTPS id 4sm2535174ywi.39.2010.01.19.04.00.00 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 19 Jan 2010 04:00:01 -0800 (PST) Sender: Fernando Gont Message-ID: <4B559EBC.9060502@gont.com.ar> Date: Tue, 19 Jan 2010 08:59:56 -0300 From: Fernando Gont User-Agent: Thunderbird 2.0.0.23 (Windows/20090812) MIME-Version: 1.0 To: freebsd-net@freebsd.org X-Enigmail-Version: 0.96.0 OpenPGP: id=D076FFF1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Processing IPv6 Router Advertisements X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jan 2010 12:14:55 -0000 Hello, folks, I'm running FreeBSD 6.2-Release in one of my boxes, and there seems to be a bug in the processing of Router Advertisement messages. RA messages seem to be required to have a Source Address in the fe80::/32 prefix, rather than in the fe80::/10 prefix. That is, the first 32 bits of the IPv6 Source address must be fe80:0000, or else the message is dropped (at least, no changes are made to the destination cache or the neighbor cache). Can anybody confirm this one, or correct me if I am wrong? Thanks! Kind regards, -- Fernando Gont e-mail: fernando@gont.com.ar || fgont@acm.org PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1