Problems with RTNET (rtifconfig)

[Janis <janism@tvnet.lv>]

I have problems with RTNET installation and usage.
 I use RedHat 6.2,  RT Linux 2.3 (as well as  RTAI 1.4, RTAI 1.6), 
RTNET-0.9.0
1. When I  install RTNET the  file  /include/modbuild/config.h is not
found. 
    Therefore I create directory  /include/modbuild/ ,  rename and
copy file 
      /home/rtnet-0.9.0/tmpconfig.h
    as file /home/rtnet-0.9.0/ /include/modbuild/config.h.
    I don't know is it right operation, but compilation process
completed  successfully 
    and ping works with driver 3c59x_rt_old.
2. The next problem is with rtifconfig, because device file "
/dev/rtnet" is not found.
 It seems that device file "rtnet" is not registered. So I cannot
configure network and work
with RTNET in hard real time.

Can anybody help with idea because I am not expierenced in Linux  yet?

Thanks
Janis