I-D ACTION:draft-ietf-dnsext-dnssec-2535typecode-change-04.txt

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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		: Legacy Resolver Compatibility for Delegation Signer
	Author(s)	: S. Weiler
	Filename	: draft-ietf-dnsext-dnssec-2535typecode-change-04.txt
	Pages		: 5
	Date		: 2003-8-5
	
As the DNS Security (DNSSEC) specifications have evolved, the
syntax and semantics of the DNSSEC resource records (RRs) have
changed.  Many deployed nameservers understand variants of these
semantics.  Dangerous interactions can occur when a resolver that
understands an earlier version of these semantics queries an
authoritative server that understands the new delegation signer
semantics, including at least one failure scenario that will cause
an unsecured zone to be unresolvable.  This document proposes that
these interactions be avoided by changing the type codes and
mnemonics of the DNSSEC RRs (SIG, KEY, and NXT).

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