Opening in Checkpoint firewall

Opening in Checkpoint firewall

I have a server with address 80.39.X.X that I want to give access to
another server range in my network: 10.1.16.0/24.
They are both in my network, behind a Checkpoint firewall.
When I try to reach this server from one of the others, I get a drop on a
rule in the firewall that we have set that states:
Any Source, to any destination, any traffic on any service will be dropped.
This is a rule we have to have, since this is for a costumer.
What I'm not sure about is what rule should I set above this rule, to give
the servers with 10.1.16.0/24 access to my 80.39.X.X server?