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4. Enter the port number of the ports you wish to block
from the selected IP.
There are four fields you can enter port numbers into,
in any order or combination.
5. To block more than 4 ports, enter a range of port
numbers (if any) in the last field.
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5.4 Denial of Service
It is highly recommended that the DoS Protection
feature be enabled to prevent attacks on the
network. However, if you allow someone to
manage the router from outside, you should
either disable Detect SYN Flood Attack or
increase the TCP flow. Otherwise, the configura-
tion web pages will not be sent smoothly
Firewall Settings