[153019] in North American Network Operators' Group
Re: DNS anycasting - multiple DNS servers on same subnet Vs
daemon@ATHENA.MIT.EDU (Tony Finch)
Mon May 28 15:20:48 2012
Date: Mon, 28 May 2012 20:20:11 +0100
From: Tony Finch <dot@dotat.at>
To: Anurag Bhatia <me@anuragbhatia.com>
In-Reply-To: <CAJ0+aXabEt=3eG-JFH1TXXWGS3JsnuAtqzQuGA78bj-6oxAgMQ@mail.gmail.com>
Cc: NANOG Mailing List <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Anurag Bhatia <me@anuragbhatia.com> wrote:
>
> One small concern I wanted to discuss here. I know few
> registry/registrars which do not accept both (or all) name servers of
> domain name on same subnet. They demand at least 1 DNS server should be
> on different subnet for failover reasons (old thoughts).
>
> How one can deal with such case in case of anycasting setup which using
> one single subnet everywhere?
You still want name servers on more than one subnet in case the anycast
setup breaks.
Tony.
--
f.anthony.n.finch <dot@dotat.at> http://dotat.at/
South Utsire: Northwesterly 6 to gale 8 decreasing 4 or 5. Moderate or rough.
Fair. Good.
