AP_CHAP_R_WAITING
{ AP_CHAP_R_WAITING, KI_CHAP_N, auth_chap_recv_n },
{ AP_CHAP_R_WAITING, KI_CHAP_R, auth_chap_recv_r },
{ AP_CHAP_R_WAITING, KI_CHAP_I, auth_chap_recv_i },
{ AP_CHAP_R_WAITING, KI_CHAP_C, auth_chap_recv_c },
client->phase = AP_CHAP_R_WAITING;