User`s manual

LKR-604

Firewall

The LKR-604 Broadband Router provides extensive Firewall protection

by restricting connection parameters to limit the risk of hacker attacks

and by defending against a wide array of common hacker attacks.

The LKR-604 Broadband Router provides packet filtering rules by

restricting service ports, IP address or MAC address. However, for

applications that require unrestricted access to the Internet, you may

configure a specific client/server as a demilitarized zone (DMZ)

Discard PING From WAN Side

When "Discard PING from WAN side" is checked, it causes the public

WAN IP address on the LKR-604 Broadband Router to ignore ping

commands. Pinging public WAN IP addresses is a common method

used by hackers to test whether the WAN IP address is valid.