Belkin Wireless G Plus MIMO Router F5D9230-4 - Manual (Page 73)

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Using the Web-Based Advanced User Interface
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Blocking an ICMP Ping
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 your Router’s security level.
To turn off the ping response, select “Block ICMP Ping” (1) and click “Apply
Changes”. The Router will not respond to an ICMP ping.