The in.ripngd daemon implements the Routing Information Protocol next-generation for IPv6 routers (RIPng). RIPng defines the IPv6 equivalent of RIP. When you configure an IPv6 router with the routeadm command and turn on IPv6 routing, the in.ripngd daemon implements RIPng on the router. For information on the supported options of RIPng, see in.ripngd (1M) .