1.先到 Object>Address,建立對外部的IP address object.(在後面的設定會用到)
2.在Network>Routing>Policy route,新增 policy route.
source: 依需求設定.可以選擇來源ip address.
destination: any
next-hop: 選擇對外IP address的WAN interface.
Source Network Address Translation: 選擇步驟一所建的對外IP address object.