Allen Bradley 1783 NATR Communication Issue with Siemens S7 PLC

[Kurt Post 0]

We have machine that is running on Siemens S7 PLC and we have mostly Rockwell Automation/Allen Bradley hardware in the facility. I am working on getting a 1783 NATR to talk to the Siemens PLC. I am able to reach the private interface of the PLC from the private port on the NATR. However when I test the public port I am not able to communicate with the PLC. I have done some digging and allowed the below ports.

I have tried setting port 102 to TCP and UPD only and no luck. I have done some digging and I am hearing it is possible to get the two devices talking to each other but I am hitting a roadblock.

Anyone have any thoughts?