You mean make a private port 28000 and public port 28032?
All ports from 28000 to 28032 need to forwarded to your computer. This means that those ports will allow access to other computers over the internet through those ports. You need to allow both UDP and TCP connections.
The ports need to be ported to your computer. To find out what the true name of your computer is (as identified by itself) go to Control Panel>System.
It should say
Full computer name: <name of computer here>My router goes by name, if it asks you to specify, use the name found like I said above, if not, specify which computer to forward the ports to by entering in your unique IP address.