Right. It should be forwarding both UDP and TCP.
nmap yields the following:
[jourdan@neon ~]$ sudo nmap -sU -P0 -p1194 <user>.yourhda.com
[sudo] password for jourdan:
Starting Nmap 4.62 (
http://nmap.org ) at 2009-01-22 12:11 MST
Interesting ports on my.ip.add.ress:
PORT STATE SERVICE
1194/udp open|filtered unknown
Nmap done: 1 IP address (1 host up) scanned in 2.250 seconds
So I don't know. Not sure if my port forwarding isn't working properly or if something else is going on. This was from inside my network, but by giving it the full domain name like I'm hoping that it didn't just send the scan directly to the machine but came back through my router. However, I get nearly the same results if I just say "nmap hda" though it will return my MAC at that point.