Authentication Mandate for All Registration Reply Messages

Document Type Expired Internet-Draft (individual)
Author Charles Perkins 
Last updated 2009-10-12
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Expired & archived
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Some implementations of Mobile IP home agents have been observed to supply zero authentication data when sending a Registration Reply to the mobile node that contains rejection code 131 (Mobile Node Failed Authentication). This creates a vulnerability whereby a mobile node could be denied service from its home agent, and thus lose connectivity to the Internet even though mobile node and home agent were otherwise functioning properly.


Charles Perkins (

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