How to forward all ports of the router?

Question

Computer networks

Good day

, I have a router through which I get the Internet, I plan to install Kerio Control, how can I make sure that everything that comes to the router is redirected to Kerio?

I know that there is port forwarding, but it's kind of stupid. but how to do it differently I xs.

Answer 1

DMZ or bridge mode if available.

Answer 2

Ideally - a cable in kerio. (although I don’t like kerio)
Lorly configure DMZ on the router

Answer 3

There is a router... What? Firm, model... Turn on the Internet cable in the Kerio computer and you won't have to forward all the ports. Scheme, where the devices are conditionally 2 routers... 2 NATs... Why?