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Digi TX40 5G Cellular Router

Recommended Configuration for Digi TX40 on Celona Network

Team Celona avatar
Written by Team Celona
Updated this week

Firmware Version

Initial Configuration

Router Access

Router internal IP: 192.168.210.1 (default IP hidden & only accessible from LAN side)

Use Eth2 (LAN) to access

PC with IP address dhcp connect to Eth2 (IP address pool might difference but above hidden ip always accessible)

Default Credentials:

  • username: admin

  • password: label in the back of the unit

Enable WEB/SSH access thru Cell interface

web access:

System Configuration >> Device Configuration >> Services >> Web administration >> Access control list >> Zone: add External zone

ssh access:

System Configuration >> Device Configuration >> Services >> SSH >> Access control list >> Zone: add External zone

Enable shell access (linux shell)

System Configuration >> Device Configuration >> Authentication >> Groups >> admin >> Interactive shell access: enable

System Configuration

Configure Supernetting

  1. Need to note down ip address of UDPF of the domain that IMSI on Digi belongs to. In this case: 172.21.108.86

  2. Core router: need a route to LAN subnet ID on Digi

3. Config on Digi

Config IP address of LAN site to static ip in subnet for supernet: Configuration >> Device Configuration >> Interfaces >> LAN >> IPv4

Disable DHCP server on LAN interface : Configuration >> Device Configuration >> Interfaces >> LAN >> DHCP server: disable

Enable DHCP Relay: Configuration >> Device Configuration >> Interfaces >> LAN >> DHCP relay: point to testing dhcp server

Disable SNAT: Configuration >> Device Configuration >> Firewall >> Zones >> External: disable Source NAT

***Important: need to run the below command on Digi in order for dhcp relay functioning on Cell at this moment: by default it’s disabled. To do so need to ssh to the TX40 (or access CLI on UI) and do the following

Connect the PC to the LAN site with ip address set to dynamic to see it gets assign IP in supernet subnet

Configure IP Passthru

Configuration >> Device Configuration >> Interfaces >> LAN

Interface type: IP Passthrough

Source interfaces: WWAN1

Rest are disabled as below

PC connected on LAN - can be either dhcp or static. both are tested in PIU setup

IP Passthru static IP Example:

The Celona SIM is provisioned to get the same IP every time.

For example the Celona IP might be: 10.10.21.109

Program 10.10.21.109 static IP into the AGV controller.

Subnet mask 255.255.255.0

GW as 10.10.21.1

If SIM gets 10.10.21.1 then GW should be 10.10.21.2.

The Digi when running in IP-Pass-Through mode knows to send all traffic received on the mobile interface through to the AGV. It also knows to pass any traffic received from the AGV to the 10.10.21.1 address out the mobile interface.

Config L2 GRE (Digi beta image)

*** Add below firewall rule in Digi Custom Rule

iptables -I INPUT -p gre -j ACCEPT
iptables -I INPUT -p gre -m conntrack --ctstate NEW,ESTABLISHED -j ACCEPT

Create GRE interface: Configuration >> Device Configuration >> VPN >> IP Tunnels >> create a GRETAP interface

The remote endpoint will be the UDPF interface of the IP Domain that the ISMI on TX40 belongs to

Create the GRE bridge to have this GRETAP interface (named: L2GRE) and LAN port that we want to be in.

Configuration >> Device Configuration >> Networks >> Bridges:

Name: in this case is GRE

Bridge types: Standard

Devices:

  • GRETAP interface

  • LAN ports

Create network interface:

Configuration >> Device Configuration >> Networks >> create_interface

IP address of this interface is the Cell IP

Script to configure and control Digi device

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