add files

server/test/portforwarding.go

@@ -0,0 +1,22 @@
+/*package server
+import (
+    "fmt"
+
+    "github.com/jackpal/gateway"
+    natpmp "github.com/jackpal/go-nat-pmp"
+)
+
+func main() {
+    gatewayIP, err := gateway.DiscoverGateway()
+    if err != nil {
+        return
+    }
+
+    client := natpmp.NewClient(gatewayIP)
+    response, err := client.GetExternalAddress()
+    if err != nil {
+		fmt.Print(err)
+		return
+    }
+    fmt.Printf("External IP address: %v\n", response.ExternalIPAddress)
+}*/