For telemetry you set the IP on the device you want to receive. I have found it best to use your router to 'pin' the DHCP address to the one that the device occupies when you set it up - in an ideal world this does stay fixed if the device is on the network each time the lease is renewed (24 hours is common, and the size of the DHCP lease pool is a factor - if you have a large number of different devices connect infrequently).
It is not suggested to meddle with any more of the telemetry settings unless you have issues.
Multiple devices used to receive the telemetry? Use Broadcast mode ON.
Using older telemetry apps not designed to recieve F1 2019 data? Use UDP format '2018' mode.
Getting jittery telemetry? Adjust the UDP send rate.
That's all she wrote.