Re: 51 - spi collisions

The basic idea in the text seems to be right, but IMHO we need
much longer explanation than that (at least if we want people
who didn't read the mailing list discussion to understand what
the note says).

I can try to write something (but not today)...

BR,
Pasi

> -----Original Message-----
> From: ext Jari Arkko [mailto:[email protected]] 
> Sent: 24 October, 2005 13:43
> To: Tuomas Aura; Tero Kivinen; Eronen Pasi 
> (Nokia-NRC/Helsinki); Parthasarathy Mohan (Nokia-NET/MtView)
> Cc: MOBIKE Mailing List
> Subject: 51 - spi collisions
> 
> 
> It seems that we now have the same understanding of
> this issue. I asked Tero to write some text for an
> implementation note. Here goes:
> 
> Add to the end of Section 4.4 an indented implementation
> note as follows:
> 
>     Implementation note: In MOBIKE (and also in IKEv2) it is possible
>     to have cases where the SPI, protocol and destination address
>     may not be uniquely distinguish SA to be used for outgoing
>     traffic. In those cases implementations need to have a direct
>     pointer from the matched traffic selectors of the outgoing traffic
>     to the outbound SA to be used. That is, it is not enough 
>     to store SPI, protocol, and destination address to the SPD-S, 
>     but some kind of unique identifier is also needed. 
> 
> --Jari