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5.11 Security
Figure 5-57 The Security menu
There are four submenus under the Security menu: Basic Security, Advanced Security, Local
Management and Remote Management. Click any of them, and you will be able to configure the
corresponding functions.
5.11.1 Basic Security
Choose menu “Advanced
Basic Security”, and then you can configure the basic
security in the screen as shown in
Figure 5-58.
Figure 5-58 Basic Security
Firewall - A firewall protects your network from the outside world. Here you can enable or
disable the router’s firewall.
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
factory default. If you want all the computers on the LAN exposed to the outside world,
you can disable it.
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