RE: Nameserver MUST HAVE IP

["Hollenbeck, Scott" <shollenbeck@verisign.com>]

>-----Original Message-----
>From: Mats Dufberg [mailto:dufberg@nic-se.se]
>Sent: Monday, April 09, 2001 7:26 AM
>To: Hollenbeck, Scott
>Cc: ietf-provreg@cafax.se
>Subject: RE: Nameserver MUST HAVE IP
>
>
>On Mon, 9 Apr 2001, Hollenbeck, Scott wrote:
>
>> >IMHO we should remove the requirement in 3.4.2[3] that a 
>nameserver MUST
>> have
>> >an IP address if its name lies registered in the 
>registrar's TLD. The
>> >discussions here and the interesting report quoted by 
>Elisabeth Porteneuve
>> >showed that this requirement does not add much to the "health"
>> >of the domain name system.
>>
>> I disagree that the requirement should be removed 
>completely, and reiterate
>> my earlier suggestion that replacing the MUST with a SHOULD 
>would be more
>> appropriate.
>
>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.  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.

In my opinion this ensures that we still have a requirement for addresses to
produce glue records, and covered the concern that addresses aren't required
for all name servers.

<Scott/>

<Scott/>