-static ipv4_t cache_ipv4_address[2];
-static subnet_t *cache_ipv4_subnet[2];
-static bool cache_ipv4_valid[2];
-static int cache_ipv4_slot;
-
-static ipv6_t cache_ipv6_address[2];
-static subnet_t *cache_ipv6_subnet[2];
-static bool cache_ipv6_valid[2];
-static int cache_ipv6_slot;
-
-static mac_t cache_mac_address[2];
-static subnet_t *cache_mac_subnet[2];
-static bool cache_mac_valid[2];
-static int cache_mac_slot;