In the ZUND_XX.CNF file, find the section like this ["your model name"-Postproc]
inside that area replace the ip address in there with your machine's ip address,
followed by the desired port number.  If no port number is present, the port will default to 50000.

EXECWAIT=[DriverPath]ZundFix.exe, "[OutFull]" 192.168.1.145 51000