SMC Networks SMC Barricade SMC7004VBR - Manual (Page 58)

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DMZ (Demilitarized Zone)
If you have a client PC that cannot run an Internet application properly
from behind the firewall, then you can open the client up to unrestricted
two-way Internet access. Enter the IP address of a DMZ host to this
screen. Adding a client to the DMZ (Demilitarized Zone) may expose your
local network to a variety of security risks, so only use this option as a last
resort.
Tools
Use the “Tools” menu to backup the current configuration, restore a
previously saved configuration, restore factory settings, update firmware,
and reset the Barricade.