IP Address Encapsulation (IPAE): A Mechanism for Introducing a New IP

Document Type Expired Internet-Draft (ipae WG)
Authors Dave Crocker  , Bob Hinden 
Last updated 1992-11-11
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The Internet seeks to increase the amount of IP address space that is available for hosts and to decrease the amount of table storage that is required by routers. Ultimately, the current IP (IP version 4) and any replacement are inherently incompatible and movement to the new version requires very substantial change to the IP installed base. This specification describes an approach which retains as much software, operations and training as possible, and minimizes overall operational disruption by allowing subsets of the Internet to carry the new-format Internet datagrams inside old-style IPv4 datagrams, using a technique called 'IP Address Encapsulation' (IPAE). This permits incremental and asynchronous introduction and makes transition entirely optional for portions of the Internet infrastructure. It further permits early reduction to routing table size.


Dave Crocker (dcrocker@brandenburg.com)
Bob Hinden (bob.hinden@nokia.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)