Network security is currently the most concerned issue of people. The built-in firewall in the router can play a basic firewall function. It can shield the IP address of the internal network, freely set the IP address and communication port filtering, and can prevent hacker attacks and virus intrusion.firewall router， Users do not need to spend additional money to install other virus protection equipment to have a relatively safe network environment.
Therefore, the firewall function is an important function of the router, because if there is no firewall for security protection, the probability of the network being attacked by viruses and hackers will increase, which may cause the network to be paralyzed and bring a lot of trouble to users.
The router firewall is the first security barrier between the local area network and the external network. The built-in firewall in the router can play a basic firewall function. The router firewall is the first security barrier between the local area network and the external network.
The current router firewall functions mainly include anti-IP address filtering, URL filtering, MAC address filtering, IP address and MAC address binding, as well as some anti-hacking capabilities, security logs, etc. Through the built-in firewall function of the router, different filtering rules can be set to filter all abnormal information packets from the external network, so that internal network users can surf the Internet at ease.
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