From owner-freebsd-questions@FreeBSD.ORG Thu Jan 24 15:52:16 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 CC2AE16A420 for ; Thu, 24 Jan 2008 15:52:16 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (wojtek.tensor.gdynia.pl [IPv6:2001:4070:101:2::1]) by mx1.freebsd.org (Postfix) with ESMTP id D877913C447 for ; Thu, 24 Jan 2008 15:52:06 +0000 (UTC) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from wojtek.tensor.gdynia.pl (localhost [IPv6:::1]) by wojtek.tensor.gdynia.pl (8.13.8/8.13.8) with ESMTP id m0OFoBRG003966; Thu, 24 Jan 2008 16:50:11 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Received: from localhost (wojtek@localhost) by wojtek.tensor.gdynia.pl (8.13.8/8.13.8/Submit) with ESMTP id m0OFo48o003959; Thu, 24 Jan 2008 16:50:10 +0100 (CET) (envelope-from wojtek@wojtek.tensor.gdynia.pl) Date: Thu, 24 Jan 2008 16:50:04 +0100 (CET) From: Wojciech Puchar To: Prabhu Hariharan In-Reply-To: Message-ID: <20080124164941.Y3862@wojtek.tensor.gdynia.pl> References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-questions@freebsd.org Subject: Re: 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 15:52:16 -0000 > > 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? simply don't assign it. what a problem?