A network challenge

So I got my Mikrotik routerboard successfully connected to the internet.

Now I want to send the internet to the Vodafone Ultra hub router because it has wifi.

Setup will be - internet/modem - mikrotik - wifi router (supplied by Vodafone).

The mikrotik router board does not have wifi.

So I expect I will set up the Mikrotik as a a bridge or gateway to the wifi router to allow wifi devices to connect to the internet. Not sure which to setup a bridge or gateway.

Also I want to be able to setup VPN's on the Mikrotik routerboard

Any suggestions would be great, thanks