/**
* @brief Add/delete address to NAT64 pool.
*
+ * @param thread_index Thread index.
* @param addr IPv4 address.
* @param vrf_id VRF id of tenant, ~0 means independent of VRF.
* @param is_add 1 if add, 0 if delete.
*
* @returns 0 on success, non-zero value otherwise.
*/
-int nat64_add_del_pool_addr (ip4_address_t * addr, u32 vrf_id, u8 is_add);
+int nat64_add_del_pool_addr (u32 thread_index,
+ ip4_address_t * addr, u32 vrf_id, u8 is_add);
/**
* @brief Call back function when walking addresses in NAT64 pool, non-zero