From owner-freebsd-hackers Sun Aug 19 10:43: 3 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from Awfulhak.org (gw.Awfulhak.org [217.204.245.18]) by hub.freebsd.org (Postfix) with ESMTP id AED1637B40E for ; Sun, 19 Aug 2001 10:42:59 -0700 (PDT) (envelope-from brian@Awfulhak.org) Received: from hak.lan.Awfulhak.org (root@hak.lan.Awfulhak.org [fec0::1:12]) by Awfulhak.org (8.11.5/8.11.5) with ESMTP id f7JHgjI01843; Sun, 19 Aug 2001 18:42:45 +0100 (BST) (envelope-from brian@Awfulhak.org) Received: from hak.lan.Awfulhak.org (brian@localhost [127.0.0.1]) by hak.lan.Awfulhak.org (8.11.4/8.11.4) with ESMTP id f7JHgiU00866; Sun, 19 Aug 2001 18:42:44 +0100 (BST) (envelope-from brian@hak.lan.Awfulhak.org) Message-Id: <200108191742.f7JHgiU00866@hak.lan.Awfulhak.org> X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 To: freebsd-hackers@FreeBSD.org Cc: Brian Somers Subject: IPv6 DAD avoidance Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sun, 19 Aug 2001 18:42:44 +0100 From: Brian Somers Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hi, Can anybody tell me if it's possbile to tell a given interface not to do DAD ? Specifically, when using the tun device for PPP, PPP negotiates it's own endpoint (link-local) addresses with the peer. However, it doesn't look possible to stop the kernel from doing DAD unless we already have a link-local address assigned to the interface when we IFF_UP it.... Perhaps we could have a new IFF_ flag (say, IFF_NODAD) that could be ioctl()d into the interface's if_flags field and checked in in6_ifattach() ? Thanks for any help.... -- Brian http://www.freebsd-services.com/ Don't _EVER_ lose your sense of humour ! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message