I-D ACTION:draft-ietf-ipngwg-rfc2292bis-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 IPNG Working Group of the IETF.

	Title		: Advanced Sockets API for IPv6
	Author(s)	: R. Stevens, M. Thomas,  E. Nordmark 
	Filename	: draft-ietf-ipngwg-rfc2292bis-01.txt
	Pages		: 71
	Date		: 28-Oct-99
	
A separate specification [RFC-2553] contain changes to the sockets
API to support IP version 6.  Those changes are for TCP and UDP-based
applications and will support most end-user applications in use
today: Telnet and FTP clients and servers, HTTP clients and servers,
and the like.
But another class of applications exists that will also be run under
IPv6.  We call these 'advanced' applications and today this includes
programs such as Ping, Traceroute, routing daemons, multicast routing
daemons, router discovery daemons, and the like.  The API feature
typically used by these programs that make them 'advanced' is a raw
socket to access ICMPv4, IGMPv4, or IPv4, along with some knowledge
of the packet header formats used by these protocols.  To provide
portability for applications that use raw sockets under IPv6, some
standardization is needed for the advanced API features.
There are other features of IPv6 that some applications will need to
access: interface identification (specifying the outgoing interface
and determining the incoming interface) and IPv6 extension headers
that are not addressed in [RFC-2553]: The Routing header (source
routing), Hop-by-Hop options, and Destination options.  This document
provides API access to these features too.

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