+ for(n = owner ? owner->subnet_tree->head : subnet_tree->head; n; n = n->next) {
+ p = n->data;
+
+ if(!p || p->type != SUBNET_MAC)
+ continue;
+
+ if(!memcmp(address, &p->net.mac.address, sizeof *address)) {
+ r = p;
+ if(p->owner->status.reachable)
+ break;
+ }
+ }
+
+ // Cache the result
+
+ cache_mac_slot = !cache_mac_slot;
+ memcpy(&cache_mac_address[cache_mac_slot], address, sizeof *address);
+ cache_mac_subnet[cache_mac_slot] = r;
+ cache_mac_valid[cache_mac_slot] = true;
+
+ return r;