IETF Logo Mail Archive

Re: Generic anycast addresses...

Ted Lemon <mellon@fugue.com> Fri, 31 May 2019 16:54 UTC

Return-Path: <mellon@fugue.com>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id C09DC120310 for <ipv6@ietfa.amsl.com>; Fri, 31 May 2019 09:54:22 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=fugue-com.20150623.gappssmtp.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id nhwSwoy25XMw for <ipv6@ietfa.amsl.com>; Fri, 31 May 2019 09:54:20 -0700 (PDT)
Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id CE7D1120302 for <6man@ietf.org>; Fri, 31 May 2019 09:54:20 -0700 (PDT)
Received: by mail-pf1-x42f.google.com with SMTP id q17so6554196pfq.8 for <6man@ietf.org>; Fri, 31 May 2019 09:54:20 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fugue-com.20150623.gappssmtp.com; s=20150623; h=from:message-id:mime-version:subject:date:in-reply-to:cc:to :references; bh=yoBlc9056PWyrSrqtF7CzWxZb7vVExqLxQbb0LLvIYI=; b=uRPLuUKlaf3qG6FK5JinbpIg9CU0f9MvOGu69M7rjegDDwcCP3a8VHXr9IhxkhprLB rrpNoapZyLfR0kIkb+8pBXyCPiXoJ0VLFE/Q82KhLmz+Eb5eImOvlOpr4aRV6aphhXbB owhzchv5PeAvg+y1LvV3G6bx68fbIFKvVcJH9eqn0zlHEkfr8QrDXa4XS+alT8icyiqo RcKZcmsv1ZqqtX9yCG2Qvwb/BviKGTySS4q5hRFwM48pWBvRndtm5n98MddFheTjVX1w /JSLxszbYWN2Ch1UhWcdL1LKpSR2/oKHSFWXX/Z35M3DNsDE5hovvfcuzfdDfdF7g3aX 6Ypg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:message-id:mime-version:subject:date :in-reply-to:cc:to:references; bh=yoBlc9056PWyrSrqtF7CzWxZb7vVExqLxQbb0LLvIYI=; b=b/TPfdm7v6zMi7kV/OziUhwLg1HaapF3VJBSZQFW5gxkS4s+2MyhznlGgenUdVQl+a vQzo7aChSF/AcQnZ0VjOCFf3OWj7mVOvDlhGTi7EEwX5Cr3OXwqPQxkusKrPYZZcBdYJ Bt70XvdHFMuzM+H1mULnPH7pWxyYXc+GbeKiswVtsSOJoWGaG9/e6daKDZVruRiy6/Xb oLlWOU+dN9XlnpcyOFLi/nB3X2PHCUaWBSVIBAj88sN03+nm5Mnc1YwawNXPC2Jp5qw3 FZVYQADecFAkPOjb2EoAeikL/cHko7WOypeOSvWYk1JDe8TtagjgUHhNpIoOGblWbyjh nFaQ==
X-Gm-Message-State: APjAAAVeN53bJig5a2zQDFcY1ypeaGHCt85yVKdnd3m7Jm6N7iZYDjY6 qwsE/vTokEZLSOxD2Y+xKihBChdciI4=
X-Google-Smtp-Source: APXvYqzZ4bWTmVp/8F/yrCzLyBP/QqRPZblAfIeiWwsVvCNOpOARM0Jt5bU6UCxwjOL0CGmvquFC6g==
X-Received: by 2002:aa7:842f:: with SMTP id q15mr11530898pfn.161.1559321660331; Fri, 31 May 2019 09:54:20 -0700 (PDT)
Received: from [17.230.172.14] ([17.230.172.14]) by smtp.gmail.com with ESMTPSA id 127sm6661206pfc.159.2019.05.31.09.54.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 31 May 2019 09:54:19 -0700 (PDT)
From: Ted Lemon <mellon@fugue.com>
Message-Id: <054EEE65-B7C8-444D-8F29-8D8C2F8C42E3@fugue.com>
Content-Type: multipart/alternative; boundary="Apple-Mail=_2F72F763-BC6B-435F-B5E5-F50D21280EE1"
Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.11\))
Subject: Re: Generic anycast addresses...
Date: Fri, 31 May 2019 09:54:17 -0700
In-Reply-To: <25631.1559317738@localhost>
Cc: "6man@ietf.org" <6man@ietf.org>
To: Michael Richardson <mcr+ietf@sandelman.ca>
References: <D22E680C-3EE3-4AD7-90C0-9339DA2E5A29@fugue.com> <BN6PR21MB04978DB375C05CB3CE4C914EA31F0@BN6PR21MB0497.namprd21.prod.outlook.com> <4EF97F31-1F39-4150-B044-955C46E96FB4@fugue.com> <20190530002833.wfvjfbj2lv2ig664@faui48f.informatik.uni-erlangen.de> <7A9560FC-0393-45DF-8389-B868455AC6DD@fugue.com> <20190530005734.7d2alod2zoaemmhc@faui48f.informatik.uni-erlangen.de> <D6E27B45-437F-45BE-A305-47DD460BCE02@fugue.com> <26144.1559226966@localhost> <1DD451A7-D898-4105-974C-53776A3DA9F2@fugue.com> <20190530152902.l2nmyhadr4e4kt7x@faui48f.informatik.uni-erlangen.de> <0FF19D6D-1A45-41EF-BE34-CC35B5E51E1E@steffann.nl> <D91629F6-73AC-4A80-80EF-16644F73DA36@fugue.com> <701687d4-842c-6a16-3c97-349125324e3f@gmail.com> <D648647D-60E1-4DCE-B0BE-11002E0AE5A4@fugue.com> <25631.1559317738@localhost>
X-Mailer: Apple Mail (2.3445.104.11)
Archived-At: <https://mailarchive.ietf.org/arch/msg/ipv6/whoGF56jzCYHAbXOruMgaSkp4ZY>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 31 May 2019 16:54:23 -0000

On May 31, 2019, at 8:48 AM, Michael Richardson <mcr+ietf@sandelman.ca> wrote:
> Should hop 1 (home router) or hop 2 (access node) were to blackhole route
> fc00::/6 (ULA-R and ULA-C), would that affect your use case?  Or could the
> anycast service possibly be at the ISP?

That’s the desired behavior.   There is no wish to have this stuff escape to the ISP.

> On a campus situation, I would assume that ULA, if used, should be routed to
> the all edges, but not beyond.   Or alternatively, consider an ISP+plus it's
> customers to be a "campus", or "admin-scope”.

I don’t think the ISP use case is addressable in a general way using WKA.

> Should home routers install routes to 2000::/3 when they see "default" rather
> than "::/0"?  I have made that argument, but I see the other point about
> how limiting it could be in the future.

I don’t know.   I can see pros and cons to that.

v2.23.0 | Report a Bug | By Email