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IP Tunnels in the Internet Architecture

Document Type Expired Internet-Draft (intarea WG)
Expired & archived
Authors Dr. Joseph D. Touch , Mark Townsley
Last updated 2023-09-27 (Latest revision 2023-03-26)
Replaces draft-touch-intarea-tunnels
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document discusses the role of IP tunnels in the Internet architecture. An IP tunnel transits IP datagrams as payloads in non- link layer protocols. This document explains the relationship of IP tunnels to existing protocol layers and the challenges in supporting IP tunneling, based on the equivalence of tunnels to links. The implications of this document updates RFC 4459 and its MTU and fragmentation recommendations for IP tunnels.


Dr. Joseph D. Touch
Mark Townsley

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