[NTLUG:Discuss] OT: UDP Help

[Merlin]

I know this isn't a Linux question, but I am hoping some of the networking
gurus on the list might be kind enough to help me out.

Okay, so we have devices on the network that communicate witha a
particular server via a certain UDP port for certain application
functions.

The functions that do not use this UDP port work.  The functions that do
use this UDP port are not working; we are basically receiving a timeout.

So, the question is, how can I tell, other than nmap or other
port-mapping/probing tool because my network guys will string me up by my
toenails, if this particular UDP port is being routed?  I know that I can
telnet www.xxx.yyy.zzz:nn to check a TCP port, but I'm pretty sure this
doesn't work for UDP.  Anybody have any ideas?

Also, unfortunately, a Winbloze solution would be helpful.  I have Cygwin
on my box, so I can try that if need be, but Winbloze would help.

The network guys are trying to check the config on the router to make sure
it is not blocking my UDP port, but they are having some sort of issue
with their authentication server and cannot check the router config right
now.

Ah, the joys of the corporate environment.

-- 
Merlin
"Do not meddle in the affairs of Wizards,
for they are subtle and quick to anger."