I-D ACTION:draft-ietf-dnsind-clarify-06.txt

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 A Revised Internet-Draft is available from the on-line Internet-Drafts 
 directories. This draft is a work item of the DNS IXFR, Notification, and 
 Dynamic Update Working Group of the IETF.  
                               
Note: This revision reflects comments received during the last call period.

       Title     : Clarifications to the DNS Specification                 
       Author(s) : R. Elz, R. Bush
       Filename  : draft-ietf-dnsind-clarify-06.txt
       Pages     : 14
       Date      : 03/10/1997

This draft considers some areas that have been identified as problems with 
the specification of the Domain Name System, and proposes remedies for the 
defects identified.  Six separate issues are considered:    

 + IP packet header address usage from multi-homed servers,   
 + TTLs in sets of records with the same name, class, and type,  
 + correct handling of zone cuts,    
 + two minor issues concerning SOA records and their use,       
 + the issue of what is an authoritative, or canonical, name,   
 + and the issue of what makes a valid DNS label.  

The first four of these are areas where the correct behaviour 
has been somewhat unclear, we seek to rectify that.  The other two 
are already adequately specified, however the specifications seem
to be sometimes ignored.  We seek to reinforce the existing specifications.
 
This version tightens the procedures to be followed when a server receives 
an RRSet with varying TTLs on the RRs comprising the RRSet. This is an 
attempt to limit the spread of bogus data.  This paragraph will be deleted 
from the final version of this document.                                   

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