Инструкция роутер Tenda 4G08

13 Security

13.1 Firewall

The firewall function helps the router detect and defend ICMP flood attack, TCP flood attack, UDP
flood attack, and ignore Ping packet from WAN port. It is recommended to keep the default
settings.

To access the page, log in to the web UI of the router, and navigate to Security > Firewall.

Parameter description

Parameter
Description

Used to enable or disable the ICMP flood attack defense.

ICMP Flood Attack
Defense

The ICMP flood attack means that, to implement attacks on the target host, the
attacker sends a large number of ICMP Echo messages to the target host, which
causes the target host to spend a lot of time and resources on processing ICMP Echo
messages, but cannot process normal requests or responses.

Used to enable or disable the TCP flood attack defense.

TCP Flood Attack
Defense

The TCP flood attack means that, to implement attacks on the target host, the
attacker quickly initiates a large number of TCP connection requests in a short period
of time, and then suspends in a semi-connected state, thereby occupying a large
amount of server resources until the server denies any services.

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