DEVADDR_EXTERNAL = (1 << 2),
/* route overrides the default interface metric */
- DEVROUTE_METRIC = (1 << 3)
+ DEVROUTE_METRIC = (1 << 3),
+
+ /* route overrides the default interface mtu */
+ DEVROUTE_MTU = (1 << 4),
+
+ /* route automatically added by kernel */
+ DEVADDR_KERNEL = (1 << 5),
};
union if_addr {