If I use the link network port switch on the Dante card will that allow me to talk to the rf control of the ulx d?
It depends.
The control port on the Avantis Dante card is that connected to the desk remotes ip address?
No. Normally not. This allows control over the Dante network independent of the other networks.
But the mentioned switch bridges both networks.
And this has nothing to do with IP addresses.
To start with, all of the addresses you listed are within the same network if you are using a proper class A private network. All devices SHOULD see each other if your IP addressing is properly set. However, don’t fall into the trap of using a class C network mask (which most home/office consumers are used to 192.168.1.x) which is 255.255.255.0. For a proper class A network, which you are using (10.x.x.x) the network mask is 255.0.0.0. If you are experiencing any issues, I would check to make sure that all devices are using a proper mask. Especially if your Ipads need to be on a specific IP address.