@ -69,6 +69,9 @@ extern "C" {
#define NDP_OPT_PI (3) /**< prefix information option */
#define NDP_OPT_RH (4) /**< redirected option */
#define NDP_OPT_MTU (5) /**< MTU option */
#define NDP_OPT_AR (33) /**< address registration option */
#define NDP_OPT_6CTX (34) /**< 6LoWPAN context option */
#define NDP_OPT_ABR (35) /**< authoritative border router option */
/**
* @}
*/