is NS record pointing to "some other name server" needed in case of classless IN-ADDR.ARPA delegations?

Doug Barton dougb at dougbarton.us
Thu Apr 4 01:46:43 UTC 2013


On 04/02/2013 12:47 AM, Martin T wrote:

> Is NS record pointing to "some other name server" needed in case of
> classless IN-ADDR.ARPA delegations? What happens if one does not
> specify this?

It's very common for the parent name server(s) to slave the 2317 zone so 
that it can answer directly. It's also common for the child to slave the 
parent zone so that it can answer internal queries directly. And of 
course as Mark pointed out "name servers > 1" is basic DNS.

You may find this useful as well:

https://dougbarton.us/DNS/2317.html

Doug



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