To set up a device attached to the LAN Ethernet port to receive the passthrough IP address of the Digi device's wired WAN or cellular modem connection(s).
For this example, you need a DAL device:
The following diagram shows a sample setup of a Digi 6300-CX with its LAN port 1 set up to provide the IP address of the cellular modem connection as a passthrough to the client device connected to the 6300-CX's LAN port.
Open the configuration profile for the DAL device, open the Network->Interfaces->LAN section, and make the following changes:
The below example configuration would setup the DAL device in dual-passthrough mode. In this setup, the DAL device will provide its wired WAN IP address as a passthrough IP to the single client device connected to its LAN port, as long as the wired WAN connection is up. The client device will receive this passthrough IP via DHCP. If the wired WAN connection goes down, the DAL device will automatically switch to its cellular modem connection, and automatically trigger a DHCP renewal on the client device so it updates from the WAN passthrough IP to the cellular passthrough IP. The ordering of passthrough interface priority can be arranged through the Network->Interfaces->LAN->Source interfaces list mentioned in step 4 above.