From lapo@lapo.it  Tue Feb  9 19:45:21 2010
Return-Path: <lapo@lapo.it>
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 9D5371065697
	for <FreeBSD-gnats-submit@freebsd.org>; Tue,  9 Feb 2010 19:45:21 +0000 (UTC)
	(envelope-from lapo@lapo.it)
Received: from mail.lapo.it (motoko.lapo.it [88.198.0.105])
	by mx1.freebsd.org (Postfix) with ESMTP id DBA2F8FC25
	for <FreeBSD-gnats-submit@freebsd.org>; Tue,  9 Feb 2010 19:45:20 +0000 (UTC)
Received: (qmail 55683 invoked by uid 89); 8 Feb 2010 13:32:08 -0000
Received: from firewall.andxor.it (HELO lapo.andxor.it) (lapo@lapo.it@195.223.2.2)
  by 0 with ESMTPA; 8 Feb 2010 13:32:08 -0000
Message-Id: <4B701249.8020507@lapo.it>
Date: Mon, 08 Feb 2010 14:31:53 +0100
From: Lapo Luchini <lapo@lapo.it>
To: FreeBSD-gnats-submit@freebsd.org
Subject: [stf] there should be a way to support multiple 6to4 addresses

>Number:         143711
>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:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Feb 09 19:50:00 UTC 2010
>Closed-Date:    Wed Feb 10 06:48:13 UTC 2010
>Last-Modified:  Wed Feb 10 06:48:13 UTC 2010
>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:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Wed Feb 10 06:48:01 UTC 2010 
State-Changed-Why:  
Duplicate of kern/143673. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=143711 
>Unformatted:
