RE: Nameserver MUST HAVE IP

[Mats Dufberg <dufberg@nic-se.se>]

On Mon, 9 Apr 2001, Hollenbeck, Scott wrote:

> >A SHOULD would be appropriate if storing the IP address for glue records
> >not strictly needed would be a better solution than not. I disagree. By
> >storing and announcing the IP address you increase the risk of have
> >different data in the mother zone than in the authoritative
> >zone. -- Data should be kept where it is authoritative as far as possible.
>
> ...and by not mentioning anything at all about the need for an IP address
> with a name server you run the larger risk of not having glue where it's
> needed.

If a glue is needed and IP address is missing, the delegation should be
refused.

> I don't have a problem with adding some words that describe why the
> SHOULD isn't a MUST (see below), but cutting out the requirement completely
> doesn't address the reality of needing addresses to produce glue records.
>
> 3.4.2-[3] existing text:
> Name servers registered within the registry's authoritative TLDs MUST be
> registered with a valid IPv4 or IPv6 address.
>
> 3.4.2-[3], change MUST to SHOULD and add new text:
> Name servers registered within the registry's authoritative TLDs SHOULD be
> registered with a valid IPv4 or IPv6 address only as required to produce DNS
> "glue" records.


There could be a MUST for needed glue:

3.4.2-[3], updated to cover strictly needed glue:

Name servers MUST be registered with valid IPv4 or IPv6 address when "glue
record" is stricly needed for delegation of a domain from the TLD. The
address MAY be removed when no longer needed for strict "glue record".


The MUST could be moved to somewhere else to say:

Delegation MUST be refused if a valid IPv4 or IPv6 address is not
available for strictly needed "glue record".


Mats

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Mats Dufberg                                     +46-8-545 857 06
dufberg@nic-se.se                           fax: +46-8-545 857 29