not getting login using xdmcp

[baileymason@comcast.net]

I've configured my RH9 to respond to xdmcp and have even successfully 
tested it with another xserver. But my attempts at getting the cygwin 
startxdmcp.bat command

Xwin -query hostname -nodecoration -lesspointer

to get me to a login have not been successful. The server (192.168.1.2) 
seems to respond as in this dump

initation of startxdmcp
21:43:42.670753 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 7
21:43:42.835538 192.168.1.2.xdmcp > 192.168.1.132.1061: udp 84 (DF)
21:43:52.813260 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 66
21:43:52.814046 192.168.1.2.xdmcp > 192.168.1.132.1061: udp 52 (DF)
21:43:52.829619 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 29
21:44:06.258146 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 29
21:44:10.260849 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 29
21:44:18.266102 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 29
21:44:34.269619 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 29
21:45:06.271426 192.168.1.132.1061 > 192.168.1.2.xdmcp: udp 29
21:45:07.918032 192.168.1.2.xdmcp > 192.168.1.132.1061: udp 79 (DF)
root cygwin window closes

Unfortunately this sequence isn't generating errors to xdm-error.log.
I'm thinking that either there is an xdm configuration setting or Xwin 
option that I don't have set up. I've tried the -from and -port options 
with no affect.

Any advise is appreciated

-John