Chapter 6 Network Security
This chapter contains the following sections:
• Firewall
Firewall
1 . Access More settings>Security>Firewall.
2 . Open Block Ping: It can prevent ping attacks and scanning and reduce the risk of network attacks on this device.
3 . Open Port Scan Blocking: It can protect server ports on devices from attacks.
4 . Open Block DDoS Attacks: It enables the router to avoid the massive resource consumption caused by DDoS attacks and ensures normal services.
5 . Click SAVE to finish the configuration.
ALG Configuration
ALG（Application Layer Gateway）allows a custom NAT traversal filter to be inserted into the gateway to support the address and port translation of certain application layer “control/data” protocols. Keeping default settings is recommended. When you use voice and video applications to create or receive calls through the router, you may need to disable SIP ALG because some voice and video applications do not work well with SIP ALG.
1 . Access More>Security>ALG.
2 . After configuration, please click SAVE to finish.