I am trying to set up a static NAT to a boiler control module so the heating systems can be controlled from the internet. The boiler control module is in the 17 subnet. Our BorderManager Firewall is in the 14 subnet. With Filters disabled, static nat works great to any addresses in the 14 subnet, but will not work if it is translated to the 17 subnet. What have I forgotten to do to get this translated correctly? Or do I have to set this up a different way? The BM server can ping the address of the boiler control module fine.

Any help appreciated!