npppd_ppp_bind_realm
if (npppd_ppp_bind_realm(_this->ppp->pppd, _this->ppp, _this->name, 0)
int npppd_ppp_bind_realm(npppd *, npppd_ppp *, const char *, int);
if (npppd_ppp_bind_realm(_this->ppp->pppd, _this->ppp, _this->name, 0)