If you just want to use the RUT950 4G Router to provide a 4G connection for your office firewall then you can configure IP Passthrough so the WAN port of your office firewall obtains the mobile network IP address.

In this example in the video below we have used a Fixed IP SIM card so that the RUT950 has a fixed, public IP address which will be passed through to the WAN port of your office router or firewall WAN port.

It is a pretty simple process

The default IP address of the RUT950 is 192.168.1.1 so please ensure that your office network is on a different IP range or simply change the LAN IP address of the RUT950 so it is different from your office network or firewall/router that you will be connecting it to.

Configure the APN so that your RUT950 connects to the mobile network, if using a Fixed IP SIM then check that it is working correctly and you can access the router over the Internet.

You can configure Ping Reboot as well.

You will then need the MAC address of the WAN port of your office router or firewall

visit the mobile settings page in the teltonika router where you just configured your APN settings and set mode to Passthrough and you will then be able to insert the MAC address of the firewall/router WAN port that you want the traffic passed through to.

Save this and your configuration is finished.

Connect the WAN port of your firewall/router to the LAN port of the Teltonika RUT950 4G router and your WAN interface will receive the mobile network IP address details and now have a public interface of the mobile network IP address.