From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from omta001.cacentral1.a.cloudfilter.net (omta001.cacentral1.a.cloudfilter.net [3.97.99.32]) by sourceware.org (Postfix) with ESMTPS id 847233858D32 for ; Thu, 16 Nov 2023 20:40:36 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 847233858D32 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=Shaw.ca Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=shaw.ca ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 847233858D32 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=3.97.99.32 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1700167238; cv=none; b=seTRiK5dupWRH+zoc76PhjOXH7YKmXRS5Pc3SQmLUjwoJsT/AqEFsXFP7e+vhT+hHWVP5thfqbldRME9tolKIuPIb4/CCELXrHfZI9Bp7qEH54Edq01NkQfTUjZxjjCEClhvlLYdu/ES9wpJcM6UJXWIaxxgFw/8lbPLYELQAQE= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1700167238; c=relaxed/simple; bh=Gdl0bgBcX96qQzTJKmHPA3p0bVKlyzpjjmzk4XXVqaw=; h=DKIM-Signature:Message-ID:Date:MIME-Version:Subject:To:From; b=L7zmk/w/kICgwvhfVgsHM3xvrhgd5qCrSMY+u1azTKHFjFM9O1292tU0F7B8AUy0WCT6td9V5+n95aPdOPKy03qHYgvxAZtAekPlPqoC3bI51vBgJ0nKC5O05gtqucDG/15UA5c8BJelu7xIUsT3tbaAQMTIMzn19W+69xQx3os= ARC-Authentication-Results: i=1; server2.sourceware.org Received: from shw-obgw-4001a.ext.cloudfilter.net ([10.228.9.142]) by cmsmtp with ESMTPS id 3gMIrhWV08jpT3jACrhD1s; Thu, 16 Nov 2023 20:40:36 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=shaw.ca; s=s20180605; t=1700167236; bh=Gdl0bgBcX96qQzTJKmHPA3p0bVKlyzpjjmzk4XXVqaw=; h=Date:Reply-To:Subject:To:References:From:In-Reply-To; b=pAF9B8U6w1VSd2Ue/pjHQ0SaR6e6DdjURIKwJTyBKqN0QfpnAchlRUnYFGJM0105G DD9XjziuepDYQalqcOOKmt+pwEjwuG/x7SWaLA5DhygeB3tWsS739S4mAatlpl5oYY f57xWDXiHK30YnHb2BHUWRfi2vp5vSI0nAFTqoIXB1MPgK7dhgKGu+Eq1jDGDtGznx zkTGZKdhCu5f7trdo2Yg2nhiSdQbKUcnD2kb3HtqvgBUN4ij+Na6HuliAhdjlXqyI9 PChLFq3I7tc6n1LprARqRZ7+if/dh2yBxwUjrAPl5y/uUp+ZZXglDKaAGu//y9c/ly B/K73/jtBqBBg== Received: from [10.0.0.5] ([184.64.102.149]) by cmsmtp with ESMTP id 3jABrcOFnU5YW3jABr08uq; Thu, 16 Nov 2023 20:40:36 +0000 X-Authority-Analysis: v=2.4 cv=CZQbWZnl c=1 sm=1 tr=0 ts=65567e44 a=DxHlV3/gbUaP7LOF0QAmaA==:117 a=DxHlV3/gbUaP7LOF0QAmaA==:17 a=IkcTkHD0fZMA:10 a=w_pzkKWiAAAA:8 a=J0r_8gmjiuwdJHJ2L8wA:9 a=QEXdDO2ut3YA:10 a=sRI3_1zDfAgwuvI8zelB:22 Message-ID: <635d3f94-f104-49e0-9248-1cace4da9fa6@Shaw.ca> Date: Thu, 16 Nov 2023 13:40:35 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Reply-To: cygwin@cygwin.com Subject: Re: Please support download setup-x86_64.exe on IPv6-only network Content-Language: en-CA To: cygwin@cygwin.com References: <20231116101858.vxbvtipwtvwucwjs@lucy.dinwoodie.org> From: Brian Inglis Organization: Inglis In-Reply-To: <20231116101858.vxbvtipwtvwucwjs@lucy.dinwoodie.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CMAE-Envelope: MS4xfNLA/MAtZiBzLByTTnkai/4adBGA2bT5Ja4qhZjUjsS0iYPrb/yKBFwQtqcsMIz3MUefAJhWlyIZ3J9xQmQ+8BaLm2obtJArzriymohxOQFlt9/bgmI8 rk/dNvYzeqOdeKjulWG7alowa3k1bB2tKuH+VLthiHjZmy3dIec4cYvJ4MKsZx80FSZzKF1ujHfLxA== X-Spam-Status: No, score=-3.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,KAM_EXEURI,RCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 2023-11-16 03:18, Adam Dinwoodie via Cygwin wrote: > On Thu, Nov 16, 2023 at 08:13:30AM +0100, Martin Wege via Cygwin wrote: >> On Thu, Nov 16, 2023 at 2:40 AM Bin W via Cygwin wrote: >>> >>> https://www.cygwin.com/setup-x86_64.exe >>> IPv6-only network can't download the installer. >> >> Details please. Does >> https://www.cygwin.com/setup-x86_64.exe >> not work on an IPv6-only network? >> >> Or can setup-x86_64.exe not download data on an IPv6 network? > > I've just checked: cygwin.com and www.cygwin.com only have DNS A > records, no AAAA records, so there's no way to get the installer (or > indeed anything else) from cygwin.com if you're on an IPv6-only network. There are many other org and ISP issues that could block Cygwin access, like A/V, End Point Protection, GPO, firewall, but that may also mean that they do not support compatible transitional services and interconnection designed to make the difference transparent, possibly except to allowed domains or hosts, similarly to depending on insecurity-featuring-obscurity. > Fixing this will require setting up the web servers for cygwin.com to be > accessible over IPv6, and configuring the corresponding IPv6 addresses > in the domain's DNS records. The whole IP v4 internet is available as a compatibility subnet ::ffff:0:a.b.c.d on IP v6, so there is no excuse for not supporting interconnection, as it will be required until the last backbone routers drop IP v4 support. If the OP's org or ISP do not support interconnections to IP v4 hosts, they may not have the competence or knowledge to configure and run the appropriate stacks and services to support transitional 6over/to4-4over/to6 interconnections, as most other hosts and routers on the Internet still do, or it may be policy. -- Take care. Thanks, Brian Inglis Calgary, Alberta, Canada La perfection est atteinte Perfection is achieved non pas lorsqu'il n'y a plus rien à ajouter not when there is no more to add mais lorsqu'il n'y a plus rien à retirer but when there is no more to cut -- Antoine de Saint-Exupéry