TP-LINK TL-WR840N User Manual

 

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Status - The status of the port is displayed here. “Enabled” means that the port is still 

active. Otherwise, the port is inactive. 

Click Refresh to update the Current UPnP Settings List.   

 

Figure 4-37 The Security menu 

There are four submenus under the Security menu as shown in Figure 4-37: Basic Security, 

Advanced Security, Local Management and Remote Management. Click any of them, and you 

will be able to configure the corresponding function. 

Choose menu “Security  → Basic Security”, you can configure the basic security in the screen 

 

Figure 4-38 Basic Security 

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Firewall - A firewall protects your network from the outside world. Here you can enable or 

disable the Router’s firewall. 

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SPI Firewall - SPI (Stateful Packet Inspection, also known as dynamic packet filtering) 

helps to prevent cyber attacks by tracking more state per session. It validates that the 

traffic passing through the session conforms to the protocol. SPI Firewall is enabled by