Belkin F5D7230-4 User Manual page 76

Using the Web-Based Advanced User Interface
WAN Ping Blocking
Computer hackers use what is known as "pinging" to find potential victims
on the Internet. By pinging a specific IP address and receiving a response
from the IP address, a hacker can determine that something of interest might
be there. The Router can be set up so it will not respond to an ICMP ping
from the outside . This heightens the level of security of your Router .
To turn off the ping response, select "Block ICMP Ping" and click "Apply
Changes". The Router will not respond to an ICMP ping.
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