How to set up a redirect for zte mf70? Or with the help of what you can get the following result?

Question

WiFi

How to set up a redirect for zte mf70?
The modem is connected in transport. It is necessary to give a passenger connected via wi-fi a couple of minutes to get acquainted with the route, rules of conduct and safety, advertising.
Or how to get the same result.
Thank you very much.