Re: TLD anycast clouds?

["william(at)elan.net" <william () elan net>]

On Wed, 5 Oct 2005, Elmar K. Bins wrote:

> william () elan net (william(at)elan.net) wrote:
>
> > > authoritative DNS servers (and their IP addresses) and try that list
> > > on the routing registries...
> >
> > Assuming that you do that, what would you be your criteria to find based
> > on RR if the ip is anycasted or not?
>
> Maybe I overestimate the openness of the people and believe everybody
> would drop their documentation there...
>
> ~>whois -h whois.radb.net 194.246.96.1
> route:        194.246.96.0/24
> descr:        DENIC eG anycast prefix
> origin:       AS31529

Interesting, I did not notice they put it in there...

As I have necessary tools to quicly filter such data from multiple DBs, 
you might be interested in the list of those self-reporting anycast in RR 
(its not very long):

192.5.5.0/24 AS3557 - ISC F ROOT (source: OTTIX, VERIO, RIPE)
64.94.96.0/24 AS24246 - INTERNAP (source: SAVVIS, RADB)
204.8.212.0/22 AS32476 - Tellme Networks (source: RADB)
196.6.240.0/24 AS27598 - IS.CO.ZA (source: RADB, RIPE)
195.85.200.0/24 AS29117 - irc-hispano.org (source: RIPE)
192.88.99.0/24 AS12859 - BIT.NL 6to4 relay RFC3068 (source: RIPE)
194.145.251.0/24 AS33837 - PRQ.SE (source: RIPE)
194.246.96.0/24 AS31529 - DENIC (source: RIPE)
84.205.72.0/24 AS12654 - RIPE NCC RIS (source: RIPE)
84.205.73.0/24 AS12654 - RIPE NCC RIS (source: RIPE)
192.88.99.0/24 AS3344 - kewlio.net 6to4 relay RFC3068 (source: RIPE)

2001::500::/48 AS3557 - ISC F ROOT (source: RIPE)
2002::/16 AS3344 - 6to4 relay anycast - no longer done, right??

Getting back to the subject of anycast DNS TLDs, its possible that above
did provide a clue that one of the .ZA servers might be anycasted (although
NSZA.IS.CO.ZA is 196.4.160.27 right now and not listed anycast in RR).

P.S. I will search for anycast in description of ip whois data when I get
a chance and if its not long and interesting may post summary here as well.

--
William Leibzon
Elan Networks
william () elan net