auth_withpeer_fail
auth_withpeer_fail(unit, PPP_CHAP);
auth_withpeer_fail(cstate->unit, PPP_CHAP);
void auth_withpeer_fail(int, int);
auth_withpeer_fail(u->us_unit, PPP_PAP);
auth_withpeer_fail(unit, PPP_PAP);
auth_withpeer_fail(u->us_unit, PPP_PAP);