hotfix(routing): ignore non-main table for routes

- When searching for default routes
- When searching for local networks

internal/routing/default.go

@@ -31,6 +31,10 @@ func (r *Routing) DefaultRoutes() (defaultRoutes []DefaultRoute, err error) {
 	}
 
 	for _, route := range routes {
+		if route.Table != 0 {
+			// ignore non-main table
+			continue
+		}
 		if route.Dst.IsValid() {
 			continue
 		}