TP-Link TL-R470T+ User Manual page 76

The following items are displayed on this screen:
 General
Flood Defense:
Figure 4-39 Attack Defense
Flood attack is a kind of commonly used DoS (Denial of Service),
which including TCP SYN, UDP, ICMP and so on. It is
recommended to check all the Flood Defense options and specify
the corresponding thresholds. Keep the default settings if you are
not sure.
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