Need some help for UDP in home network

[OH3OJ]

Good morning, I need some help to configure software to pass logdata in home network from JTDX running other compter than SWL.
I use now mainly Flexradio 6700 and all software is runing in laptop. SmartSDR is installed to both laptop and main desktop (more efficent one).
With SmarSDR is working from both computers separately or even in same time (multiFlex).

I try to utilize the computer resources better and idea is:

Laptop: running SWL and SmartSDR
Destop: running JTDX
Flex and both above connected together with switch / Ethernet in network.

How I need to configre the UDP in both computers in network (JTDX / SWL) to be able to pass QSO data to SWL in same way as it works when both softwares ar running in one single comptur ?

73's de Jukka, OH3OJ