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.