XESP for Traffic Visibility

Document Type Replaced Internet-Draft (individual)
Last updated 2008-12-01 (latest revision 2008-06-23)
Replaced by draft-ietf-ipsecme-traffic-visibility
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Expired & archived
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IESG IESG state Replaced by draft-ietf-ipsecme-traffic-visibility
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This Internet-Draft is no longer active.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 an ESP encapsulation for IPsec, allowing intermediate devices to ascertain if ESP-NULL is being employed and hence inspect the IPsec packets for network monitoring and access control functions. Currently in the IPsec standard, there is no way to differentiate between ESP encryption and ESP NULL encryption by simply examining a packet.


Ken Grewal (ken.grewal@intel.com)

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