Pekka Savola wrote:

> > For an authoritative server answering a query, there are
> > "glue", that is, "critical", additional data and all the
> > other additionals are "courtesy". So, please don't invent
> > new terminologies and just say "glue".
> 
> I used this terminology at first, but others have stated that "glue"  
> is where the additional data comes from.  So just saying "glue" did
> not appear to be sufficient unambiguous.
 
and it really isn't, but I'm not too sure Masatake Ohta is challenging this.

> > For a resolver receiving a response, it is not distinguishable
> > whether A for NS of referral response is "glue" or not.
> 
> Sorry for confusion -- I'm mostly interested in the _authoritative
> servers_ sending the response packets.  They should be able to tell
> rather easily.  The resolvers can probably have some checks as well,

There are cases where an authoritative server is not only authoritative
for the zone in question but also for one or more zones "owning" the
NS server names.

-Peter
.
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