Archives : Knowledge Base

Tunnel – Advanced 4G-RS232 Tunnel – Setting up the MTX Tunnel as a permanently connected TCP/IP Server and configured to send the IP address to a web server by HTTP

Scenario details: We need to monitor 100 devices with an RS232 port (115200.8.N.1 and HW flow control) from a central control station using a GPRS link. This will be done using the MTX-Tunnel acting as a transparent serial – 4G tunnel Access to the RS232 remote devices at any time is mandatory, so the modem […]

Tunnel – Advanced 4G-RS232 Tunnel – Setting up the MTX Tunnel as permanently connected and TCP/IP Server configured to send the IP by socket to a private DNS server

Scenario details: We need to monitor 100 devices with the RS232 port (115200.8.N.1 and HW flow control) from a central control station using a 3G link. This will be done with the MTX-Tunnel to act as a transparent 4G-RS232 tunnel Access to the RS232 remote devices at any time is mandatory. So the modem connected […]

Tunnel – MTXTunnel configured as TCP/IP client and connected permanently to LTE/4G. Network operator dynamic IP addresses are used

Scenario details: There are 3 RS232 remote devices, configured as a 9600, 8, N, 1 and no flow control. We need to control and monitor from a central server –PC with internet connection You need to access them occasionally with a remote control. Therefore the modem connected to remote devices does not need to be […]

Tunnel – MTXTunnel configured as TCP/IP server and occasionally connected to LTE/4G. Dynamic IP addressing. Firewall and authorized phone numbers active

Scenario details: There are 3 RS232 devices configured as 9600, 8, N, 1 and no flow control. We need to control and monitor from a central server using the 3G-Serial tunnel gateway You need to access them occasionally with a remote control, so the modem connected to the remote devices does not need to be […]

Tunnel – MTXTunnel configured as TCP/IP server and occasionally connected to LTE/4G. Network operator dynamic IP addresses are used

Scenario details: There are 3 RS232 remote devices, configured as a 9600, 8, N, 1 and no flow control. We need to control and monitor periodically from a central server –PC with internet connection- using 4G-Serial tunnel gateway Server PC is waiting for incoming connections from remote MTX-Tunnel. This is the opposite to previous examples; […]

Tunnel – Basic LTE/4G/3G-Serial tunnel. MTX-Tunnel is configured as a TCP/IP server and permanently connected to Internet using a SIM provided by the operator with a fixed IP address

Scenario details: There are 3 RS232 remote devices, configured as 115200, 8, N, 1 and hardware flow control. We need to control and monitor from a central server –PC with internet connection . You can access them at any time. Therefore, the modem connected to the remote devices must be permanently connected to GPRS. So […]

Tunnel – TACACS+ related configuration parameters: “TACACS_”

The MTX-Tunnel firmware has TACACS + authentication support as of version 9.26. That is, it is possible to use a Tacacs + server to authenticate a user who wants to use the Telnet or SNMP service. It will be necessary to configure the TELNET_auth or SNMP-auth parameter with the “tacacs +” option in order to use this […]

Tunnel – MQTT Related configuration parameters: “MQTT _”

The MTX-Tunnel firmware has MQTT support as of version 9.25. It is possible to send data stored in the internal datalogger (LOGGER_mode: mqtt) using MQTT as well as the DNS data (DNS_mode: mqtt). It is also possible to send AT commands (to check modem status, make configuration changes, change relay status, etc.). The main advantage is that being […]

Tunnel – SNMP configuration parameters: “SNMP_”

Configuration parameters with the prefix SNMP_ are related to MTX-Tunnel configurations where SNMP protocol is necessary. SNMP (Simple Network Management Protocol) is a very extended protocol serving for control of field-installed modems. From the version MTX-Tunnel v9.16 onwards it is possible to use SNMP with all MTX modem models containing MTX-Tunnel firmware. SNMPv2 protocol is not fully included, […]

Tunnel – GPS Configuration parameters: “GPS_”

Parameters with the prefix GPS_ are related to MTX-Tunnel configurations to be used in MTX devices (only for those disposing of GPS). By using an MTX with incorporated GPS module you can configure the modem to send the location to a WEB server periodically. Unlike the former versions of MTX-Tunnel firmware, from the version v9.18 onwards […]