From owner-freebsd-bugs@FreeBSD.ORG Mon Feb 8 14:50:02 2010 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0152A10656E0 for ; Mon, 8 Feb 2010 14:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D809F8FC20 for ; Mon, 8 Feb 2010 14:50:01 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id o18Eo1BR081993 for ; Mon, 8 Feb 2010 14:50:01 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id o18Eo1pf081992; Mon, 8 Feb 2010 14:50:01 GMT (envelope-from gnats) Resent-Date: Mon, 8 Feb 2010 14:50:01 GMT Resent-Message-Id: <201002081450.o18Eo1pf081992@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Lapo Luchini Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C8C4C106566B for ; Mon, 8 Feb 2010 14:44:21 +0000 (UTC) (envelope-from lapo@lapo.it) Received: from andxor.it (relay.andxor.it [195.223.2.3]) by mx1.freebsd.org (Postfix) with SMTP id 1343D8FC13 for ; Mon, 8 Feb 2010 14:44:19 +0000 (UTC) Received: (qmail 82481 invoked from network); 8 Feb 2010 14:44:16 -0000 Received: from unknown (HELO lapo.andxor.it) (192.168.2.22) by andxor.it with SMTP; 8 Feb 2010 14:44:16 -0000 Message-Id: <4B70233C.2030406@lapo.it> Date: Mon, 08 Feb 2010 15:44:12 +0100 From: Lapo Luchini To: FreeBSD-gnats-submit@FreeBSD.org Cc: Subject: kern/143673: [stf] there should be a way to support multiple 6to4 addresses X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Feb 2010 14:50:02 -0000 >Number: 143673 >Category: kern >Synopsis: [stf] the should be a way to support multiple 6to4 addresses >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: doc-bug >Submitter-Id: current-users >Arrival-Date: Mon Feb 08 14:50:01 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Lapo Luchini >Release: FreeBSD 8.0-STABLE amd64 >Organization: >Environment: System: FreeBSD deepie.home.lapo.it 8.0-STABLE FreeBSD 8.0-STABLE #21 r203605: Sun Feb 7 15:18:51 CET 2010 root@deepie.home.lapo.it:/usr/obj/usr/src/sys/DEEPIE amd64 >Description: (I'm a bit undecided if this is a doc-bug or a change-request, but I think the former is certain, the latter could be useful.) Let me explain: when a server changes IPv4 it can (in some cases) have both as aliases for a while, so that the change does not imply downtimes. Using 6to4 this does not appear to be the case: interface stf1 can't be created (and this is the documentation bug: "man stf" states that "Each stf interface is created at runtime using interface cloning") and adding an alias address to the existing stf0 interface does no effect at all: only the first address is used (and this is the change request: either support both address or maybe forbid adding a second alias, if that's possible). In reference (and a bit more verboseness), two messages by myself in the freebsd-net mailing list: http://lists.freebsd.org/pipermail/freebsd-net/2009-March/021271.html http://lists.freebsd.org/pipermail/freebsd-net/2009-July/022591.html >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: