[Mip4] Re: [AAA-WG]: radius mip?

[Tom Hiller <tomhiller at lucent.com>]

Jeremy,

mip4-aaa-key-03 distributes nonces to the mobile. The mobile uses the
nonces to derive session keys, such as MN-HA key. The draft does not 
deal with delivering session keys to the HA (or FA).

draft-ietf-aaa-diameter-mobileip-16.txt deals with delivering keys to 
the HA (and FA), but it only applies to Diameter.

-----

3GPP2 has text in its packet data standard ("Wireless IP Network 
Standard") for the HA to obtain the MN-HA key from the home RADIUS 
server.  The text defines a RADIUS VSA to carry the MN-HA key, and 
what's in the RADIUS Access-Request and Access-Accept, for example.


	-Tom


Jeremy A. Greene wrote:

> In looking at general aaa support for mip (2977) and the mip4-aaa-key-03 
> draft, I am still not clear if there is any radius support for either SA 
> information distributed to the HA, or dynamic key distribution to both 
> the HA and MN.
>
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> It seems that at least cisco uses radius to distribute SAs to HAs. And 
> they may even do dynamic keying using radius. But I can’t find any 
> drafts or rfcs – not that it would be surprising that cisco did 
> something proprietary. Or calling what is really diameter, radius.
>
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> Jeremy
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