CHAP
%token IP LCP PAP CHAP EAP MPPE CCP MSCHAPV2 STATEFUL STATELESS REQUIRED
{ "chap", CHAP},
| CHAP { $$ = NPPPD_AUTH_METHODS_CHAP; }
| CHAP { $$ = NPPPD_PROTO_BIT_CHAP; }
res.auth_method = CHAP;
case CHAP: