Loop while doing iterative queries

[Luis S. <lui...@gm...>]

Hi all,
I'm facing a problem regarding the Cache. While doing iterative queries one
of the external servers returns in the answer the list of nameservers with
no additional A Records information. My application receives that
information and adds it on the cache. The problem is that I need to consult
that nameservers. So I start a new lookup searching for the A record of the
nameservers. I search the cache and the detects a referral because I add the
nameservers with no A record. This is causing a loop. Do you have a solution
for this problem? Shouldn't the cache validates if the name searched in the
cache is the same as the target of the ns records returned by the cache. Any
alternative? Thanks in advance.

Kind Regards
Luis