How to add network in ospf?

[Hllrdm]

I have OSPF set up between the router and Check Point.
To access the secured network from the local network, we set up NAT on the Check Point using a specific IP addressing.
I need to add the IP addressing that we use for NAT to the OSPF. That is, I need the router to see the network that we use for NAT.
How do we add the network correctly to the OSPF? Through Address range in the area or through Route Redistribution?