+
+/*
+ * Initialize an interface's routing
+ * table entry according to the network.
+ * INTERNET SPECIFIC.
+ */
+if_rtinit(ifp, flags)
+ register struct ifnet *ifp;
+ int flags;
+{
+ struct sockaddr_in sin;
+
+ if (ifp->if_flags & IFF_ROUTE)
+ return;
+ bzero((caddr_t)&sin, sizeof (sin));
+ sin.sin_family = AF_INET;
+ sin.sin_addr = if_makeaddr(ifp->if_net, 0);
+ rtinit(&sin, &ifp->if_addr, flags);
+}