Subject: RE: [mobile-ip] Intermediate version of Mobile IPv6 base specific ation

From: "Hesham Soliman (EAB)" <[email-masked]>
Date: Sat, 12 Oct 2002 17:04:11 +0200

I might have missed one of the recent issues, if
so please let me know. 

There is a conflict between 
Section 5.2.6 of the interim version which says:

"      1.  Binding Update

         The mobile node uses the created binding key Kbu to authorize
         the Binding Update.  The contents of the message include the
         following:

               Src = care-of address
               Dst = correspondent
               Parameters:
               - home address
               - MAC (Kbu, (care-of address | correspondent node address | BU))
               - home nonce index
               - care-of nonce index
               - sequence number           
"

 But section 6.1.7 says:

"         The following options are valid in a Binding Update:

          -  Binding Authorization Data option

          -  Nonce Indices option.

          -  Alternate Care-of Address option
"

No mention of the home address in 5.2.6

Finally, chapter 11.7.2 says:

" The mobile node SHOULD create a Binding Update as follows:

    -  The Source Address of the IPv6 header MUST contain the current
       care-of address of the mobile node.

    -  The Destination Address of the IPv6 header MUST contain the
       address of the correspondent node.

    -  The Mobility Header is constructed according to rules in
       Section 6.1.7, including the authenticator field which is
       calculated based on the received home and care-of keygen tokens.

    -  The Home Address destination option MUST be attached to the
       message, unless the Source Address is the home address of the
       mobile node. "

what does "attached to the message" mean?
Aren't these sections conflicting each other in terms 
of what MAC (Kbu, (care-of address | correspondent node address | BU))
should cover? 

It seems to me that we need to either include the HAO
in the MH or change the MAC to be:
MAC (Kbu, (care-of address | correspondent node address | HAO | BU))

Comments?

Hesham

  > -----Original Message-----
  > From: Charles E. Perkins [mailto:[email-masked]]
  > Sent: Wednesday, October 02, 2002 12:42 AM
  > To: Mobile IP Working Group
  > Subject: [mobile-ip] Intermediate version of Mobile IPv6 base
  > specification
  > 
  > 
  > Hello folks,
  > 
  > A lot of changes have been applied to the base specification
  > since draft ...-18, along the way of resolving the numerous
  > Last Call issues.  Now, it is difficult for most people to
  > carry on discussions about the open issues because the previous
  > text is so far out of date with the current editors' version.
  > 
  > To repair that problem, especially important as we try to
  > finish the last issues and get draft ...-19 issued for possible
  > IESG consideration, a new text file with an intermediate
  > version has been made available:
  >     http://people.nokia.net/~charliep/txt/mobilev6/mobilev6.txt
  > 
  > Regards,
  > Charlie P.
  >