Go here
http://scan.sygate.com/probe.html and scan using the sygate website.
here is the result I got:
This is the public IP address that is visible to the internet.
Note: this may not be your IP address if you are connecting through a router, proxy or firewall.
Trying to gather information from your web browser...
Operating System = Windows NT 5.2
Browser = Microsoft Internet Explorer 6.0
Trying to find out your computer name...
Unable to determine your computer name!
Trying to find out what services you are running...
Unable to detect any running services!
I also clicked the stealth scan and the results showed that all were blocked apart from WEB PROXY but that is my router.