Re: IKE V2 Open Issues

[Uri Blumenthal <uri@bell-labs.com>]

Derek Atkins wrote:
>>5) Lack of definition of the COOKIE_REQUIRED notify payload.
>>Charlie's suggestion to delete the COOKIE_REQUIRED payload and simply
>>to use the COOKIE payload is simple, and non-controversial.
> 
> Actually, I (and at least two others who have voiced opinions on the
> topic) prefer Radia's suggestion of putting the cookie into the
> COOKIE_REQUIRED notify payload and sending that.  So Bob would send a
> N(COOKIE_REQUIRED{cookie}) message to Alice, and Alice would add
> N(COOKIE{cookie}) to message-3.  I think this is clearer than
> Charlie's suggestion of just using N(COOKIE{cookie}) in both
> directions.

Yes, your way it's clearer. However Charlie's way is simpler,
and one less payload type to worry about...

I'll be happy with either choice - but lean towards N(COOKIE{cookie})...