RADIUS Mobile IPv4 extensions V.02

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RADIUS Mobile IPv4 extensionsV.02

• Madjid Nakhjiri,
• Kuntal Chowdhury,
• Avi Lior
• Kent Leung
• http//www.ietf.org/internet-drafts/draft-nakhjiri
  -radius-mip4-02.txt

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Background

• Dealing with bootstrapping Mobile IP info through
  AAA server
• To become Mobile IPv4 WG work item
• To be reviewed by RADEXT after MIPv4 last call

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Mobile IPv4 provides

• Mobile IP (3344) Authentication specifications
• MN-HA-AE, MN-FA-AE, FA-HA-AE
• Mobile IP challenge response (3012bis0x)
• MN-AAA AE, anti-replay measures
• Mobile IP extensions for fetching keying material
  from AAA (3957)
• Nonce/ key request extensions

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Needed from AAA

• AAA messaging between Mobile IP agents and AAA
  servers
• Diameter spec defined (4004)
• RADIUS spec not defined
• Attributes needed
• Message flow needed?
• Draft defines
• Attributes, messaging procedures
• Handling of NAIs, IP addresses and so on
• Diameter-RADIUS Translation on Mobile IP support

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RADEXT WG, Please

• Review attributes and attribute table
• Key wrap draft status?
• Guidance on Diameter-RADIUS translation
• Diameter has specific commands dealing with FA
  versus HA
• RADIUS has only 4 message, how to distinguish FA
  from HA?
• Attribute size issues
• Should we standardize only attributes or
  messaging too?
• Issues with remembering keys/ nonces at RADIUS
  server?