User's Manual

FiOS Router User Manual

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Click 8. Apply to save the changes. The new port forwarding rule appears in

the “Applied rules” table at the bottom of the screen.

Note: Some applications, such as FTP, TFTP, PPTP, and H323, require the support

of special specific Application Level Gateway (ALG) modules to work inside the

local network. Data packets associated with the aforementioned applications

contain information that allows them to be routed correctly. An ALG is needed

to handle these packets and ensure they reach their intended destinations. The

FiOS Router is equipped with a robust list of ALG modules, enabling maximum

functionality in the local network. The ALG is automatically assigned based on

the destination port.

6.5 DMZ Host

The DMZ (De-Militarized Zone) host feature allows one device on the network to

operate outside the firewall. Designate a DMZ host:

To use an Internet service, such as an online game or video-conferencing t

program, not present in the Port Forwarding list and for which no port range

information is available.

To expose one computer to all services without restriction or security. t

Warning: A DMZ host is not protected by the firewall and may be vulnerable

to attack. Designating a DMZ host may also put other computers in the

local network at risk. When designating a DMZ host, consider the security

implications and protect it if necessary.

To designate a local computer as a DMZ host:

Select 1. DMZ Host from the left side of any Security screen. The “DMZ Host”

screen appears.