This section describes how to configure the status check function on the web UI.
You can enable or disable the TCP or Internet Control Message Protocol (ICMP) status check function as required.

The TCP status check function and ICMP status check function are independent of each other. Enabling or disabling of one function does not affect the status check on the other type of data flows.
Enabling TCP Status Detection or ICMP Status Detection on the web UI will enable both IPv4 and IPv6 status check.
Disabling the TCP status check function makes defending against SYN flood attacks in TCP proxy mode unavailable.