RFC 4840 · INFORMATIONAL · 2007
SUN · 14 JUN 2026
Multiple Encapsulation Methods Considered Harmful
Overview
RFC 4840, “Multiple Encapsulation Methods Considered Harmful”, is an Informational document published in April 2007 by B. Aboba, E. Davies, D. Thaler. The canonical text is published by the RFC Editor.
Abstract
This document describes architectural and operational issues that arise from link-layer protocols supporting multiple Internet Protocol encapsulation methods. This memo provides information for the Internet community.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 4840 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 2007
- RFC 4839 Media Type Registrations for the Open eBook Publication Structure Package File
- RFC 4841 RFC 4181 Update to Recognize the IETF Trust
- RFC 4838 Delay-Tolerant Networking Architecture
- RFC 4842 Synchronous Optical Network/Synchronous Digital Hierarchy Circuit Emulation over Packet
- RFC 4837 Managed Objects of Ethernet Passive Optical Networks
- RFC 4843 An IPv6 Prefix for Overlay Routable Cryptographic Hash Identifiers
- RFC 4836 Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units
- RFC 4844 The RFC Series and RFC Editor