From owner-freebsd-ports Tue Jan 22 23:48:45 2002 Delivered-To: freebsd-ports@freebsd.org Received: from cheer.mahoroba.org (flets19-017.kamome.or.jp [218.45.19.17]) by hub.freebsd.org (Postfix) with ESMTP id 75D1037B400 for ; Tue, 22 Jan 2002 23:48:36 -0800 (PST) Received: from mille.mahoroba.org (IDENT:VhrQdLEP2MfAWEBu3I7PGKgrj6ewIFs9NW2B7xBh6p7PKMVrzYkS+ZXu96RKPj3E@mille.mahoroba.org [IPv6:2001:200:301:0:202:2dff:fe0a:6bee]) (user=ume mech=CRAM-MD5 bits=0) by cheer.mahoroba.org (8.12.2/8.12.2) with ESMTP/inet6 id g0N7mWQd018706 (version=TLSv1/SSLv3 cipher=EDH-RSA-DES-CBC3-SHA bits=168 verify=NO); Wed, 23 Jan 2002 16:48:33 +0900 (JST) (envelope-from ume@mahoroba.org) Date: Wed, 23 Jan 2002 16:48:29 +0900 Message-ID: From: Hajimu UMEMOTO To: Edwin Groothuis Cc: freebsd-ports@freebsd.org Subject: Re: IPv6 for ports, automaticly enable it or not? In-Reply-To: <20020123163021.A97184@k7.mavetju.org> References: <20020123163021.A97184@k7.mavetju.org> User-Agent: xcite1.38> Wanderlust/2.8.1 (Something) SEMI/1.14.3 (Ushinoya) FLIM/1.14.3 (=?ISO-8859-4?Q?Unebigory=F2mae?=) APEL/10.3 Emacs/21.1 (i386--freebsd) MULE/5.0 (=?ISO-2022-JP?B?GyRCOC1MWhsoQg==?=) X-Operating-System: FreeBSD 4.5-RC MIME-Version: 1.0 (generated by SEMI 1.14.3 - "Ushinoya") Content-Type: text/plain; charset=US-ASCII X-Virus-Scanned: by AMaViS-perl11-milter (http://amavis.org/) Sender: owner-freebsd-ports@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hi, >>>>> On Wed, 23 Jan 2002 16:30:22 +1100 >>>>> Edwin Groothuis said: edwin> Why isn't ipv6 automaticly enabled in Apache if OSVERSION > 400000 ? edwin> Is there still a fear of IPv6 regarding these things? There are some issue within application level. Since, internal API of original Apache is hardly depend on IPv4, IPv6 patch may break 3rd party module. Since Mozilla's IPv6 support uses IPv4-mapped IPv6 address, it requires IPv6 capability in kernel side even if you don't use IPv6 at all. So, if you enable IPv6 support, Mozilla doesn't work on IPv4 only kernel. And, even if you don't want to enable IPv4-mapped IPv6 address, you must enable IPv4-mapped IPv6 address to see IPv4 only sites. Further, when IPv6 connection attempt is fail, Mozilla doesn't try IPv4. This means that you cannot see sites that has AAAA RR but IPv6 service is not available. Or, if you don't have connection to 6bone, you cannot see sites that has AAAA RR at all. This is why there are two ports. In another issue, there may be some delay between new release and IPv6 patch is out. Someone may don't like this delay. Recentry, ftp/wget was divided into ftp/wget+ipv6 because of this issue. -- Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan ume@mahoroba.org ume@bisd.hitachi.co.jp ume@{,jp.}FreeBSD.org http://www.imasy.org/~ume/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ports" in the body of the message