XWin fails connecting to XDM for sending wrong source-IP

[norm]

>> I was trying to connect to a Linux-server (Debian/Sarge, XFree86 4.3) 
>> from my Windows-box (Win XP Pro SP2, cygwin 1.5.15-1, xwin 6.8.2.0-1). 
>> All I got was a blank X-screen. I thought it may be a font-problem and 
>> tried:
>> 
>> XWin -query 192.168.200.200 -fp "tcp/192.168.200.200:7100"
>> 
>> After that, netstat gave me the following two lines on the Linux-box
>> 
>> tcp 0 1 192.168.200.200:1091         192.168.68.1:x11   SYN_SENT
>> tcp 0 0 192.168.200.200:font-service 192.168.200.2:1596 CONNECTED
>> 
>> where .200.200 is the appserver, .200.2 the winbox and .68.1 something I 
>> never heard of. If you specify the right source-IP with the -from 
>> argument, everything works fine.
>> Do you already know this? Is there any reason for this behavior I 
>> haven't thought of? If not, could someone please confirm, that this is a 
>> bug?
> 
> You can specify the address to use with the -from parameter 
> 
> XWin -query 192.168.200.200 -from 192.168.200.2 -fp "tcp/192.168.200.200:7100"
> 
obviously

but it doesn't work for me without doing so. I wonder why the xserver 
chooses 192.168.68.1 in this case.

norm