Counts the number of times that the state machine
receives a response from the Supplicant to an initial
EAP-Request, and the response is something other than
EAP-NAK (i.e., rxResp becomes TRUE, causing the state
machine to transition from REQUEST to RESPONSE,
and the response is not an EAP-NAK). Indicates that
the Supplicant can respond to the Authenticator's
chosen EAP-method.