Opportunistic Security in MPLS Networks

Document Type Replaced Internet-Draft (individual)
Authors Adrian Farrel  , Stephen Farrell 
Last updated 2015-06-17
Replaced by draft-ietf-mpls-opportunistic-encrypt
Stream (None)
Intended RFC status (None)
Expired & archived
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Stream Stream state (No stream defined)
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IESG IESG state Replaced by draft-ietf-mpls-opportunistic-encrypt
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes a way to apply opportunistic security between adjacent nodes on an MPLS Label Switched Path (LSP) or between end points of an LSP. It explains how keys may be agreed to enable encryption, and how key identifiers are exchanged in encrypted MPLS packets. Finally, this document describes the applicability of this approach to opportunistic security in MPLS networks with an indication of the level of improved security as well as the continued vulnerabilities. This document does not describe security for MPLS control plane protocols.


Adrian Farrel (adrian@olddog.co.uk)
Stephen Farrell (stephen.farrell@cs.tcd.ie)

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