Typically all computers connected to a router are protected by the router’s firewall. In order to allow a computer on the Internet to connect through the router to a specific computer it is necessary to either manually forward the required ports, Port Forwarding on a Series 3 Cradlepoint, or place the device/computer on the Cradlepoint’s Demilitarized Zone (DMZ).
The Cradlepoint routers DMZ opens all ports that are not already reserved and passes them to a single device/computer attached to the routers LAN. This essentially places the device/computer outside the Cradlepoint’s firewall.
Any port forwarding rules or enabled administrative ports have a higher priority than the DMZ rule.
How to add a device to the DMZ of a Cradlepoint router
Links of Interest
