To setup a device attached to a specific LAN Ethernet port to receive the passthrough IP address of the 63xx-series router's cellular modem connection.

This article assumes the LAN ports are operating under default settings, which provide DHCP connectivity to devices connected to the 63xx-series router's LAN ports.  For more details on the default settings of the 63xx-series router, see the Default Settings section of the User's Manual.

You will need to establish the following details before configuring the 63xx-series router.

• The 63xx-series router must be running firmware version 17.5.86 or higher.
• The LAN Ethernet port you want to connect your client device to so it receives the passthrough IP address.

The following diagram shows a sample setup of a 63xx-series router with LAN port 4 setup to provide the IP address of the cellular modem connection as a passthrough to the client device connected to port 4.  Client devices connected to LAN ports of the 63xx-series router or its WiFi networks will receive a DHCP address in the 192.168.0.x/24 range from the router like normal.

Open the configuration profile for the 63xx-series router and make the following changes.  

Under Modem -> Passthrough, check the Enabled box and select the desired LAN interface under the Device drop-down.  For this example, we are selecting LAN4.

Ensure the same LAN interface is selected under Network -> Interfaces -> Default IP -> Device.

1. Under Network -> Bridges -> LAN -> Devices, remove the LAN interface you selected for passthrough mode in step 1 above.  Removing the LAN interface from this section of the config is done by selecting the down-arrow to the left of the LAN number, and select Delete.  In this sample config, we are removing Ethernet: LAN4 from the LAN bridge.
2. Save and apply the new configuration settings to the device.