Hi,
Using failover protocol alone will meet your needs.
Load Balancing simply lets you create rules to divide traffic ratio between different interfaces.
![Network load balancing policies configuration.PNG](https://wiki.teltonika-networks.com/wikibase/images/2/2c/Network_load_balancing_policies_configuration.PNG)
As you can see from the image above, the configuration is very simple. You can assign ratio values to WAN interfaces. The ratio values represent a percentage of load that will go through an interface. For example, in the default configuration 3 parts of traffic will go through the Mobile interface and 2 parts will go through the Wired interface, which means roughly 60% (3/5) of data will be transferred through Mobile, 40% (2/5) through Wired. If the ratios would be different, say Mobile: 5, Wired: 10, then 33% (5/15) of data would be transferred through Mobile, and 66% (10/15) would go through Wired.