On Thu, 18 Dec 2003 [EMAIL PROTECTED] wrote: > The only part of the DNS that really cares about additional > data are iterative resolvers.
.. which is a pretty big part of DNS.. > They can't work unless they > can get the glue they need. Every other client MUST be > able to cope with missing additional data. > > Iterative resolvers only care when they can't get the glue > address records they require. In most cases a iterative > resolver can re-query for missing glue. The only time they > can't do this at the momemnt is when you have a cross > delegation. The main point I was trying to make is that when you get only *partial* additional data (e.g. only A records but not AAAA), how do you know that it's *partial*, not the whole truth (i.e., that you should go asking for AAAA records because you know you want them as well as the A records you got already). -- Pekka Savola "You each name yourselves king, yet the Netcore Oy kingdom bleeds." Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings . dnsop resources:_____________________________________________________ web user interface: http://darkwing.uoregon.edu/~llynch/dnsop.html mhonarc archive: http://darkwing.uoregon.edu/~llynch/dnsop/index.html