From owner-freebsd-questions@FreeBSD.ORG Thu Jan 24 06:28:20 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B995016A41B for ; Thu, 24 Jan 2008 06:28:20 +0000 (UTC) (envelope-from prabhuh@gmail.com) Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.179]) by mx1.freebsd.org (Postfix) with ESMTP id 9DD4E13C458 for ; Thu, 24 Jan 2008 06:28:20 +0000 (UTC) (envelope-from prabhuh@gmail.com) Received: by wa-out-1112.google.com with SMTP id k17so197361waf.3 for ; Wed, 23 Jan 2008 22:28:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; bh=78ro4G+8+JhS7VnMdB3ymB8QqZDXe2uONeuWUUZroyM=; b=MzrjPnfDoJHtQQJdnW7bRkmLxoqaAVgHP1S4mul9kp/ogH4eGPdrQ/wZIH3I0fq31iE6eHJp21897jRcuPzDROVJWAO6Hw6YEyqFmvV7TtHtvsOxpJy+tSAcwR55IZqpgWHFlT+mLFv9EUnQBco2/X1ecRcnlP/SZAR1+bDCLcg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type; b=T/XTrtMIPOR9W9i9XHWpKF17wsBnyrkB2w99FxehScnRuYQ3AVocyVZE5cjBlZuBdTjo82tV0m+2aVjEO36higeKvXTASjF3sDGmDOU18q2VePLDrD9Plwj8BT5V71duTlv2DwxijvcTG/ao5ohkbfNQGaRUNTrfvQQ7FsCAVmo= Received: by 10.114.25.3 with SMTP id 3mr376000way.22.1201156100260; Wed, 23 Jan 2008 22:28:20 -0800 (PST) Received: by 10.115.91.19 with HTTP; Wed, 23 Jan 2008 22:28:20 -0800 (PST) Message-ID: Date: Thu, 24 Jan 2008 11:58:20 +0530 From: "Prabhu Hariharan" To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Unspecified IPv6 Address X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Jan 2008 06:28:20 -0000 Hi, Why certain hosts of freebsd can be configurable with unspecified (::) (all-zero) IPv6 addresses in its interfaces? RFC 4291 clearly mentions "this address must never be assigned to any node". Is there is any use-case or motivation behind accepting this address in an interface? Regards, Prabhu H