[enum-wg] Italian Nameservers for 9.3.164.arpa. dead?

On Jan 21, 2008, at 16:06, Bernie Hoeneisen wrote:

> One again the nameservers for 9.3.164.arpa. are currently not  
> reachable
>
> Anybody else diagnosing the same with the Italien ENUM nameservers?

Yup:

shaun% dig @62.101.92.173 9.3.e164.arpa soa
;; reply from unexpected source: 89.97.171.129#23, expected  
62.101.92.173#53
;; reply from unexpected source: 89.97.171.129#23, expected  
62.101.92.173#53

shaun% dig @62.101.92.174 9.3.e164.arpa soa
;; reply from unexpected source: 89.97.171.129#1, expected  
62.101.92.174#53
;; reply from unexpected source: 89.97.171.129#1, expected  
62.101.92.174#53


> What is the solution space to prevent this unfortunate situation in  
> future?

Same as it's always been Bernie. The Tier 1 registry for +39 should  
beef up its DNS infrastructure, for example by buying DNS service  
from a reliable hosting provider.

It is particularly disappointing that the 9.3.e164.arpa zone seems to  
delegated to just two name servers that live on the same subnet.  
RFC2182 advised against this 11 years ago.