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MTXTunnel by default allows access from any IP address.
If you enable a firewall, your system will be secure as you will avoid unauthorized access. This way, only configured IP (or DNS) addresses can connect and access MTX-Tunnel and the other services (GPRS serial tunnel, WebServer, Telnet…).
Table of Contents
FIREWALL_enabled
Description: Parameter to enable firewall and to enable access only from the configured IP address.
Possible values:
- on, off
- Default value: on
Additional notes:
- This firewall will avoid unauthorized connections with MTX-Tunnel services.If you need to use the same security access, it is mandatory to enable WEBSERVER_firewall and TELNET_firewall (“on” value)
FIREWALL_IP1, FIREWALL_IP2, … , FIREWALL_IP10
Description: Authorized IP addresses (FIREWALL_enabled: on).
Possible values:
- IP address XXX.XXX.XXX.XXX string format
- Default value: none
Additional notes:
- Up to 10 IP addresses can be written

Enter the “ethernet” or “modem” connection type:
For an ethernet configuration, make sure the IP parameters are compatible with server access according to the concentrator local network configuration. For an ethernet connection, the configuration must be compatible with the concentrator’s local network topology so that it can access the servers. This configuration is done from the “Networks” configuration page (see section 3.2.2.3: “Networks”).
For a modem connection, the modem configuration must be correct before a connection can be set up. This configuration is done from the “Modem” configuration page (see section 3.2.2.4: “Modem”).
The parameters for the servers to be configured are at least the following:
Therefore the following fields need to be configured: “Interface”, “Type”, “Server type”, “Address”, “Port”, “Login” and “Password”.
The other fields can be left at the default values subject to the directories having been properly created beforehand. See section 3.1.2: “Configuration files” for more details.

Wait. The concentrator will reboot using its factory configuration.







