Broadcast AGAIN

[Papo Napolitano]

Well, seems my previous post didn't success, so I'll try another approach...

Pleeeeeeease anyone know how to send an UDP (or TCP, or ICMP, I don't care) chunk of 
data (AKA packet) to EVERY host on an internal subnet (10.0.0.0)?
Sending to 10.0.0.255 or 255.255.255.255 doesn't work.
And I swear I can't find anything on the web. Nobody needs to broadcast?

Thanks =)