From owner-freebsd-net Sun Jun 17 23:28:14 2001 Delivered-To: freebsd-net@freebsd.org Received: from imo-m02.mx.aol.com (imo-m02.mx.aol.com [64.12.136.5]) by hub.freebsd.org (Postfix) with ESMTP id BCC8237B401 for ; Sun, 17 Jun 2001 23:28:11 -0700 (PDT) (envelope-from raviprasad20@netscape.net) Received: from raviprasad20@netscape.net by imo-m02.mx.aol.com (mail_out_v30.22.) id n.ed.1850d4a (16242) for ; Mon, 18 Jun 2001 02:28:05 -0400 (EDT) Received: from netscape.com (aimmail01.aim.aol.com [205.188.144.193]) by air-in03.mx.aol.com (v78_r3.8) with ESMTP; Mon, 18 Jun 2001 02:28:05 -0400 Date: Mon, 18 Jun 2001 02:28:05 -0400 From: raviprasad20@netscape.net To: freebsd-net@freebsd.org Subject: Prefixes for an interface Mime-Version: 1.0 Message-ID: <68A3B2D6.6EE5463F.9513E96F@netscape.net> X-Mailer: Franklin Webmailer 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hi, Prefixes are given on a perinterface basis. I found that the router itself forms an address with the prefix given. I have the following doubts. a) Can we disable router from forming addresses with prefixes that are given to it? I feel that prefixes are given to an interface by router so that it is advertised to the connected hosts. Iam confused with why the router itself has to form an address with the prefix that it advertises? b) Can a router advertise a global unicast address prefix (say of length 120 bits) to the hosts? the RFC mentions that the prefix length should be in between 4 & 127 bits. But it does not mention about the length in case of global unicast address prefix? Kindly reply. regards ravi prasad __________________________________________________________________ Get your own FREE, personal Netscape Webmail account today at http://webmail.netscape.com/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message