ZyXEL Communications P-2812HNU-51c User Manual page 270

Chapter 19 Universal Plug-and-Play (UPnP)
You may edit or delete the port mappings or click Add to manually add port
4
mappings.
Figure 131 Internet Connection Properties: Advanced Settings
Figure 132 Internet Connection Properties: Advanced Settings: Add
When the UPnP-enabled device is disconnected from your computer, all port
5
mappings will be deleted automatically.
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P-2812HNU-51c User's Guide