Changes in RPL implementation :

- Structural modification of RPL data storage.
- Support multiple gateways (multiple DODAG-ID with a unique InstanceID)
- Use Lollipop counters
- Add leaf-only configuration option for RPL
Bugfix :
- Correctly send "Grounded" flag in DIO

examples/ipv6/rpl-udp/udp-server.c

@@ -134,8 +134,7 @@ PROCESS_THREAD(udp_server_process, ev, data)
   root_if = uip_ds6_addr_lookup(&ipaddr);
   if(root_if != NULL) {
     rpl_dag_t *dag;
-    rpl_set_root((uip_ip6addr_t *)&ipaddr);
-    dag = rpl_get_dag(RPL_ANY_INSTANCE);
+    dag = rpl_set_root(RPL_DEFAULT_INSTANCE,(uip_ip6addr_t *)&ipaddr);
     uip_ip6addr(&ipaddr, 0xaaaa, 0, 0, 0, 0, 0, 0, 0);
     rpl_set_prefix(dag, &ipaddr, 64);
     PRINTF("created a new RPL dag\n");
@@ -164,7 +163,7 @@ PROCESS_THREAD(udp_server_process, ev, data)
       tcpip_handler();
     } else if (ev == sensors_event && data == &button_sensor) {
       PRINTF("Initiaing global repair\n");
-      rpl_repair_dag(rpl_get_dag(RPL_ANY_INSTANCE));
+      rpl_repair_root(RPL_DEFAULT_INSTANCE);
     }
   }