https://community.checkpoint.com/t5/Firewall-and-Security-Management/Port-forwarding-open-ports/m-p/66034/highlight/true
Re: Port forwarding/open ports - Check Point CheckMates
Apr 27, 2020 - Hello, regarding the open / strict NAT. In addition, you need to create a manual hide NAT for the network with the Static option instead of Hide for
open ports checkforwardingpointcheckmates
https://community.checkpoint.com/t5/Firewall-and-Security-Management/Port-forwarding-open-ports/m-p/83384/highlight/true
Re: Port forwarding/open ports - Check Point CheckMates
Apr 27, 2020 - You need to do a 1-1 static NAT if you don't want the source port to change. HIDE NAT always changes the source port and there's no way I'm aware of
open ports checkforwardingpointcheckmates