I just downloaded and installed Nmap for Windows 2000 (I'm at work ) so that I could scan my network at home... Well the normal SYN stealth scan came back as expected, but then I decided to do a UDP scan... EVRYTHING was open . What does that mean? Does that mean that my router just doesn't block UDP traffic? And also just because they are open doesn't mean anything right? They should show a status of Listening before I start to worry right?