From owner-freebsd-questions Wed Jul 31 11:26:21 2002 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 0EC2237B400 for ; Wed, 31 Jul 2002 11:26:15 -0700 (PDT) Received: from msgbas2.cos.agilent.com (msgbas2x.cos.agilent.com [192.25.240.37]) by mx1.FreeBSD.org (Postfix) with ESMTP id 84BD944283 for ; Wed, 31 Jul 2002 11:05:29 -0700 (PDT) (envelope-from anu_subramanian@agilent.com) Received: from msgrel1t.cos.agilent.com (msgrel1t.cos.agilent.com [130.29.152.157]) by msgbas2.cos.agilent.com (Postfix) with ESMTP id 3B20B138E for ; Wed, 31 Jul 2002 12:01:58 -0600 (MDT) Received: from axcsbh3.cos.agilent.com (axcsbh3.cos.agilent.com [130.29.152.190]) by msgrel1t.cos.agilent.com (Postfix) with SMTP id B8F4451E for ; Wed, 31 Jul 2002 12:01:57 -0600 (MDT) Received: from 130.29.152.190 by axcsbh3.cos.agilent.com (InterScan E-Mail VirusWall NT); Wed, 31 Jul 2002 12:01:52 -0600 Received: by axcsbh3.cos.agilent.com with Internet Mail Service (5.5.2653.19) id ; Wed, 31 Jul 2002 12:01:50 -0600 Message-ID: <0D9185CE635BD511ACA50090277A6FCF05037306@axcs18.cos.agilent.com> From: anu_subramanian@agilent.com To: freebsd-questions@FreeBSD.ORG Subject: IPv6 questions Date: Wed, 31 Jul 2002 12:01:50 -0600 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hi, I'm currently using FreeBSD 4.4. I have a few questions regarding IPV6: 1. scope id field in the sockaddr structure appears to be unused in rip6_bind - if the scope id(interface index in the case of link local addresses) is embedded in the IP address, then the bind is successful(even if the scope id field is 0), if the scope id is just specified in its field, then the bind is unsuccessful. Looking through the code, I found that the bind for UDP appears to embed the scope in the IP address, but rip6_bind does not do that. Can some one explain this to me? 2. For v4 mapped v6 packets, multicast does not seem to be supported completely - for example, to join a multicast group, it looks like I have to open a v4 socket. Am I completely mistaken or if I'm right, can someone tell me why multicast is not supported for v4 mapped v6 addresses? Thanks very much, Anu. Anu Subramanian Software Engineer Agilent Technologies. Tel: 603 559 5742 Fax: 603 433 6891 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message