I-D ACTION:draft-ietf-dnsext-nsid-02.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the DNS Extensions Working Group of the IETF.

	Title		: DNS Name Server Identifier Option (NSID)
	Author(s)	: R. Austein
	Filename	: draft-ietf-dnsext-nsid-02.txt
	Pages		: 16
	Date		: 2006-6-22

With the increased use of DNS anycast, load balancing, and other
mechanisms allowing more than one DNS name server to share a single
IP address, it is sometimes difficult to tell which of a pool of name
servers has answered a particular query.  While existing ad-hoc
mechanism allow an operator to send follow-up queries when it is
necessary to debug such a configuration, the only completely reliable
way to obtain the identity of the name server which responded is to
have the name server include this information in the response itself.
This note defines a protocol extension to support this functionality.

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