I've had trouble getting this to work. I'm using the right builds of supermodel but when the network board is enabled and my cabs are set Master / Slave there's no network play. I'm on static IPs just two cabs connected via a switch, All my other driving games work fine. Any suggestions?
I'll cover stuff you've probably already done, and say - download the R855 build of supermodel (someone was having probs with R857, i think) and then grab gm-matthew's latest supermodel.exe and dll files and simply dropping those onto the r855 directory.
Then you set up the network section of your supermodel.ini files for each cab:
Master cab supermodel.ini
EmulateNet = 1
port_in = 1970
port_out = 1971
addr_out = "192.168.slave.ip"
Slave supermodel.ini
EmulateNet = 1
port_in = 1971
port_out = 1970
addr_out = "192.168.master.ip"
Then open both instances and use the test menu to setup game assignments for master/slave and car number. Then restart both instances, and they should link.
gm_matthew posted batfiles a while back, but all they say is "supermodel daytona2.zip -ppc-frequency=60" for example. I think the frequency might be important for the game to run at full speed.