RE: [Mip6] concensus on [issue94] fixing encapsulation mechanism inIPv4 network

["Mohamed Khalil" <mkhalil at nortel.com>]

I believe we should do the following:

1- MN should be able to set a request for UDP tunneling.
2- the default behavior for MN is not to set the request.
3- The HA should be able to accept or reject.


>Folks,
>
>The "new" issue is about whether or not the MN can request one
>form of tunnelling (i.e. UDP) when sending a BU to the HA. The 
>two choices we have
>are:
>
>A. Add a flag that allows the MN to request UDP tunnelling
>interface (independently of the presence of a NAT) from the 
>HA, when sending the BU.
>The HA can override the MN's request. Or, 
>
>B. Do nothing. I.e. the MN sends the BU as described in the
>spec today and the HA tells the MN in the BA whether it should 
>use UDP tunnelling or IP in IP. 
>
>Please express your preference for one of the options above.
>Let's not make things complicated and get into negotiating the 
>tunnelling mechanism, one of the two above will suffice. 
>
>I'll leave it open till next Tuesday.
>
>Thanks,
>Hesham
>
>
>
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