BlueTree 5000 Guida Utente Scaricare il pdf (Pagina 35)

6 IP Networking Features

As mentioned previously, the modem acquires an external public or private IP address (WAN IP, or Wide Area Network

IP) from the cellular network upon establishing a connection. A remote user can communicate with the modem or a host

behind the modem; however the appropriate port-forwarding, DMZ or IP pass-through and LAN IP configuration must

be set on the modem. Read on for a description of each configuration option.

Some carriers disable remote access as a security measure. If you are certain that the modem is on the cellular network

(i.e., it has acquired a WAN IP) and that the local network is set up properly, but you cannot reach the modem remotely,

confirm with the carrier that incoming IP data traffic is allowed on the required TCP or UDP port. Read the BlueVue Device

Manager Troubleshooting section for more details.

6.1 Port-forwarding

Since the modem is a network address translation (NAT) enabled router, the remote computer connecting to the

modem’s cellular WAN IP cannot access devices/servers on the modem’s LAN if the modem is not specifically configured

to forward the appropriate ports to the LAN devices/servers. Port-forwarding, or tunneling, is the act of relaying an

incoming packet to one or more local destinations depending on the port(s) through which the packet came.

The main use of port-forwarding is to allow an external user to reach a port on a private IP address from the outside via

a NAT. This allows remote computers to connect to a specific computer within a private LAN, depending on the port

used to connect.

To set up the modem's port forwarding rules, navigate to CONF (Modem Configuration) > Port Forwarding/DMZ.

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