Problems with nc command - F18

[Robert Moskowitz]

Hello, I am trying to get Fedora-18-arm on my pogoplug, and having 
problems so I as told to use netconsole to troubleshoot.  I am 
attempting to follow instructions from:

http://forum.doozan.com/read.php?3,14,14

I am up to starting nc in listen mode:

nc -l -u -p 6666

I have opened udp port 6666 on my notebooks firewall, but I get a usage 
error, indicating the options are not valid.

So I read the manpage, and find out that our nc cannot have l and p 
together.  So I try out:

nc -u -p 6666

And I still get the warning.  Can anyone point me to what the proper 
Fedora options are for this?