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Re: Generic anycast addresses...

Toerless Eckert <tte@cs.fau.de> Thu, 30 May 2019 01:00 UTC

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Date: Thu, 30 May 2019 03:00:11 +0200
From: Toerless Eckert <tte@cs.fau.de>
To: Ted Lemon <mellon@fugue.com>
Cc: Bob Hinden <bob.hinden@gmail.com>, "6man@ietf.org" <6man@ietf.org>, Dave Thaler <dthaler@microsoft.com>
Subject: Re: Generic anycast addresses...
Message-ID: <20190530010011.vw37ybzq4ks72hjs@faui48f.informatik.uni-erlangen.de>
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> <83ABDD66-9B41-4845-A958-5B721FE78C1B@gmail.com> <DD8E65E5-3A9C-4ED9-9ED4-F64898AC0CBC@fugue.com>
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Ted: Its a big prefix space, and it would be really difficult to
argue starting to use it for just one address. 

On Wed, May 29, 2019 at 05:56:22PM -0700, Ted Lemon wrote:
> On May 29, 2019, at 5:48 PM, Bob Hinden <bob.hinden@gmail.com> wrote:
> > We when ULAs were being developed, there was a notion of centrally assigned ULAs.  It???s not currently defined, but that???s was the original intent for having the ???L??? bit in the prefix.  See RFC4193.
> 
> Hm.   I had thought about that, but assumed there was some reason why we couldn???t do it.   But now that you mention it, since there is currently no authority other than IANA to assign these prefixes, we could in principle simply have IANA assign one of them to use for anycast addresses that anycast within the local administrative domain?
> 

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