D-Link AC1200 User Manual page 84

Section 4 - Configuration
DoS (Denial of Service) protection can help protect the router against certain
kinds of DoS attacks. Note that this filter is not complete protection, and
should be used in tandem with other tools for maximum protection.
URL Filter
Enable:
Toggle this switch to enable or disable the DoS Protection feature.
Per Source IP Flood
Toggle specific IP flood sources to filter. Some of these settings have
subtypes.
Other Settings
Toggle specific attack types to filter.
Click Apply when you are done.
D-Link DIR-1210 User Manual
DoS Protection
80