diff --git a/zebra/rib.h b/zebra/rib.h
index 9972941..8328f23 100644
--- a/zebra/rib.h
+++ b/zebra/rib.h
@@ -355,6 +355,17 @@
 };
 #endif /* RTADV && HAVE_IPV6 */
 
+#ifdef HAVE_NETLINK
+/* Socket interface to kernel */
+struct nlsock
+{
+  int sock;
+  int seq;
+  struct sockaddr_nl snl;
+  const char *name;
+};
+#endif
+
 /* Routing table instance.  */
 struct zebra_vrf
 {
@@ -376,6 +387,12 @@
   /* Static route configuration.  */
   struct route_table *stable[AFI_MAX][SAFI_MAX];
 
+#ifdef HAVE_NETLINK
+  struct nlsock netlink;     /* kernel messages */
+  struct nlsock netlink_cmd; /* command channel */
+  struct thread *t_netlink;
+#endif
+
   /* 2nd pointer type used primarily to quell a warning on
    * ALL_LIST_ELEMENTS_RO
    */