[Mip6] Summary of Justification for Alternative Authentication Option

Hello All,

             I am attaching a summary of the discussion that took place on
justification of an alternate authentication mechanism.  Please let me know if
I have left out any important issue in the summary. I could have also mis-read
people opinions, so if there is a correction please let me know. I will 
send a follow-up
  email with the next steps.

Thanks,
-Gopal

Summary
=======

The WG has been engaged in a discussion over the last week on the
topic of standardizing an authentication date suboption based
mechanism for the purpose of registering an MN with its HA via the
BU/BAck messages.
To summarize the discussion in brief:
1. The I-D draft-patil-mip6-whyauthdataoption-00.txt was used as the
    baseline for the discussion
2. Opinion was expressed that the I-D was more inclined in justifying
    why the use of  IKE was a problem for setting up the MN-HA IPsec SA
    and not really providing sufficient justifications for an
    alternative scheme to the use of IPsec for securing the signaling
    messages between the MN and HA
3. There were a few people who expressed strong views of keeping IPsec
    as the only means for MIP6 security between MN and HA (Francis and 
Hesham (?))
4. There were others who claimed the need for an alternate option to
    MIP6 including one operator who plans to deploy the protocol in
    their network (Raj, James Kempf, Alpesh, Gopal, Kuntal, Vijay, Michael Roe)
5. There was also a note from an implementers perspective on the
    challenges of integrating MIP6 with IPsec (Michael Roe)
6. There was discussion about the problem of replay attacks and the
    need for key refreshment
7. IKEv2 is expected to provide a solution to the problem of setting
    up dynamic SAs in networks that rely on AAA infrastructures. While
    IKEv2 itself has been approved, the details of how IKEv2 is used
    with MIP6 are still being worked out in an I-D that is not ready
    yet.
8. There was an opinion that the bootstrap work being done in the WG
    would address the needs of the environment claimed in I-D
    draft-patil-mip6-whyauthdataoption-00.txt

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