/**
* Returns the network routes specified by this object. Will typically include a
- * directly-connected route for the IP address's local subnet and a default route.
+ * directly-connected route for the IP address's local subnet and a default route. If the
+ * default gateway is not covered by the directly-connected route, it will also contain a host
+ * route to the gateway as well. This configuration is arguably invalid, but it used to work
+ * in K and earlier, and other OSes appear to accept it.
*/
public List<RouteInfo> getRoutes(String iface) {
- List<RouteInfo> routes = new ArrayList<RouteInfo>(2);
+ List<RouteInfo> routes = new ArrayList<RouteInfo>(3);
if (ipAddress != null) {
- routes.add(new RouteInfo(ipAddress, null, iface));
+ RouteInfo connectedRoute = new RouteInfo(ipAddress, null, iface);
+ routes.add(connectedRoute);
+ if (gateway != null && !connectedRoute.matches(gateway)) {
+ routes.add(RouteInfo.makeHostRoute(gateway, iface));
+ }
}
if (gateway != null) {
- routes.add(new RouteInfo((LinkAddress) null, gateway, iface));
+ routes.add(new RouteInfo((IpPrefix) null, gateway, iface));
}
return routes;
}