I-D ACTION:draft-ietf-nat-dns-alg-01.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 Network Address Translators Working Group 
of the IETF.

	Title		: DNS extensions to Network Address Translators (DNS_ALG)
	Author(s)	: P. Srisuresh, G. Tsirtsis, P. Akkiraju, A. Heffernan 
	Filename	: draft-ietf-nat-dns-alg-01.txt
	Pages		: 27
	Date		: 23-Oct-98
	
   Domain Name Service(DNS) provides name to address mapping within
   a routing class (ex: IP). Network Address Translators (NATs)
   provide transparent routing between hosts in disparate routing
   realms of the same routing class. Typically, NATs exist at the
   border of a stub domain, hiding private addresses from external
   addresses. This document identifies the need for DNS extensions
   to NATs and outlines how a DNS Application Level Gateway (DNS_ALG)
   can meet the need. DNS_ALG modifies payload transparently to alter
   address mapping of hosts as DNS packets cross one routing realm
   into another. The document also illustrates the operation of
   DNS_ALG with specific examples.

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