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6. IANA Considerations

This document defines several numbering spaces that require IANA administration.

6.1. Message Types​

IANA maintains a registry of Mobile IP message types including Registration Request (1) and Registration Reply (3).

6.2. Extension Types​

IANA maintains a registry of Mobile IP extension types including Mobile-Home Authentication Extension (32), Mobile-Foreign Authentication Extension (33), and Foreign-Home Authentication Extension (34).

6.3. Code Values​

IANA maintains registries for Registration Reply code values indicating success or various failure reasons.

6.4. Flags​

Various flags in Agent Advertisements and Registration messages are managed by IANA.

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