Re: Advisory — D-root is changing its IPv4 address on the 3rd of January.

Joe Antkowiak antkojm1 at
Fri Dec 14 21:10:44 UTC 2012

On Fri, Dec 14, 2012 at 2:13 PM, Jason Castonguay <castongj at> wrote:

> The old address, which is in the middle of UMD's network, is going to be
> black-holed once the change is over. Nothing will be on that IP once we
> move the root off.  The rest of UMD's network is staying put.  This move
> is part of UMD's commitment to improve the service, so we can support
> DNS anycast.
Just a quick question....if the old block is going to be black-holed but
kept allocated...why does it need to be changed in the first place, or why
does the existing have to be disabled?  (just have both addresses

Forgive me if I'm missing something.

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