Charles E. Perkins http://www.iprg.nokia.com/~charliep RFC 2002bis Charles E. Perkins http://www.iprg.nokia.com/~charliep.

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Presentation transcript:

Charles E. Perkins http://www.iprg.nokia.com/~charliep RFC 2002bis Charles E. Perkins http://www.iprg.nokia.com/~charliep

Changes from RFC 2002 Foreign agents SHOULD support Reverse Tunneling Advertisements MAY be issued more often than once per second SPI number MUST be included as part of authentication calculation

New appendices Added new appendix with existing and proposed number assignments Added new appendix with change information Added new appendix with overall packet format examples for advertisement and registration messages

ARP limitations Mobile node MUST NOT use ARP when away from home Mobility agents SHOULD NOT advertise other default routers Foreign agent MUST NOT broadcast ARP for mobile node’s IP address

Bits Home agent MUST ignore ‘V’ bit Home agent MUST ignore ‘B’ bit if it does not support broadcast (instead of rejecting the registration) Registrations with unknown care-of address and ‘D’ bit zero MUST be rejected Mobile node MUST ignore reserved bits in advertisements

More changes Mobile node MAY use care-of address with multicast Mobile node MAY use source IP address of advertisement as default router Foreign agent MAY limit number of pending registrations (typically 5?)