Identifying Security Implications in a Link-Layer Tunnelling Mechanism for Unidirectional Links

Document Type Expired Internet-Draft (udlr WG)
Author Emmanuel Duros 
Last updated 2001-11-08
Stream Internet Engineering Task Force (IETF)
Expired & archived
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Stream WG state WG Document
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Many operators may deploy network infrastructures that use unidirectional links such as broadcast satellite links or digital TV links (...), which are capable of carrying IP traffic. In order to transparently integrate these links in their infrastructure, they may use a link-layer tunnelling mechanism such as defined in [RFC3077]. The purpose of this document is to attempt to identify any potential security implications related to this mechanism in order to help operators set up adequate securing mechanisms.


Emmanuel Duros (

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