Hi all, my first post so please be gentle...

I have a dual WAN router (from another brand) that manages my local network, with a modem to connect my ADSL service. Due to poor ADSL speed, I'd like to add a Mikrotik 4G solution to WAN2 to improve my internet speed. What I need to make sure is that the link between my router and the 4G service is transparent (no NAT), and I assume this is achieved within routerOS via bridge mode.

My network experience with such things is limited, could someone please confirm this is possible and the steps to create this in routerOS.

Thanks.