[dns-operations] IPv6 and Anycast

Bernhard Schmidt berni at birkenwald.de
Sat Nov 11 17:30:20 UTC 2006

Paul Vixie wrote:

> your point about TLD servers being able to renumber more easily than root
> operators is a good one.  but they will still need PI address space to anycast,
> no matter how easy it will be to renumber it in comparison to a root server.

That is my point, the critical infrastructure allocations ("PI") were 
given out based on the assumption of anycasting, still none of the gTLD 
operators with IPv6 in production use it and looking at IPv4 does not 
give too much hope either.

UltraDNS has eight PI blocks (announcing six of them), Verisign has 13 
blocks (four visible), Neustar five blocks with three announced. Are 
that large numbers of nameservers (esp. looking at Verisign) even 
necessary when you anycast? I doubt so.


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