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Multiple Care-of Addresses Registration. Changes. Updating packet formats. B flag in Binding Update is removed. Updating packet formats. B flag in Unique Binding Identifier sub-option is introduced for bulk registration. Bulk Registration is now supported.

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Presentation Transcript

Changes
Changes

  • Updating packet formats. B flag in Binding Update is removed.

  • Updating packet formats. B flag in Unique Binding Identifier sub-option is introduced for bulk registration.

  • Bulk Registration is now supported.

  • The distinction of primary and non-primary is obsoleted.

  • IPsec and IKE interaction will be added shortly.

  • The priority is introduced instead of primary and non-primary. This priority is from comment by Monami6 WG. The specification may not be completed, but if the document become WG, we will complete the spec.

  • The DHAAD extension is optional extension. (moved to Appendix)


Security threats
Security Threats

  • No texts in the current version

  • Vijay will follow this up...


Bulk registration
Bulk Registration

  • A MN can sends multiple CoAs in a single BU

  • Adding a new flag to indicate the Bulk Registration

  • Each CoA are stored in an alternate CoA sub-option followed by a BID sub-option

IPv6

HDR

HoA

option

....

BU

BID

ACoA

BID

ACoA

BID

ACoA


Discussions on ml
Discussions on ML

  • Simultaneously Home and Foreign attachments

  • RR with Bulk Registration

  • Backward Compatibility consideration


Simultaneously home and foreign attachments
Simultaneously Home and Foreign attachments

  • Three options when MN returns home

    • keep IF attached to the home link

      • deregistering binding (HA stop proxy ND)

    • keep IF attached to the foreign link

      • disable the interface attached to home (HA keep proxy ND)

    • keep both IFs

      • how??

  • The problem when MN uses both [email protected]/foreign

    • HA cannot intercept packets when MN returns home because it stop proxy ND

      • If HA keep proxy ND, DAD will be occurred


Rr with bulk registration
RR with Bulk Registration

  • When multiple CoAs are in a Binding Update

    • Authenticator cannot be calculated for all CoAs

      No authentication for all CoAs

  • Two options

    • forget bulk registration for CNs. Using separate binding update for CNs

    • Extending BID option to carry authenticator. Keep the home/careof nonce index and authenticator in the BID option


Backward compatibility consideration
Backward Compatibility consideration

  • For the bulk registartion, Alternate CoA sub-option is used to carry multiple CoAs.

    • It may breaks compatibility with the legacy CN

  • specify a new option to keep care-of address?


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