> On 02 Nov 2015, at 12:30, Rafa Marin Lopez <[email protected]> wrote:

> Yes, I think we are aligned. That is why we proposed EAP over CoAP (you reuse 
> CoAP). And as Robert mentioned certain EAP methods can re-use source code.
> 
> On the other hand, I have some doubts this source code will be used only once.

Could you elaborate? 

> EAP-AKA has two messages + EAP Success : EAP-Req/AKA (4 bytes header EAP + 1 
> the type) +  EAP-Resp/AKA (4 bytes header EAP +1 the type) + EAP success(4 
> bytes) = 14 overhead with respect to running “AKA" without EAP. 

Ok thanks. So, am I right if I say that this will trigger 3 additional frames 
at L2 with additional CoAP / UDP-6LoWPAN-IPv6 / 15.4 overhead?

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