Computers
on a LAN or Intranet
Machines on a local network or proxy server are able to browse
the Internet and receive broadcasts. But in order to be a broadcaster,
they must have a direct IP (Internet Protocol) connection to the
Internet. This is because the listeners on the Internet must reach
the broadcasting computer directly. When local machines browse
the Internet, they do so through an Internet firewall set up on
the gateway. It permits internal machines to browse the Internet,
but restricts access from the outside. See a sample diagram:

Note:
Use
Port 80 to get through your firewall
Using Pirate Radio Broadcaster, set up your proxy or firewall
as you would for a web server and use port 80. The broadcaster
can be configured through Settings->Connection
Settings.
Computers
on a proxy server
A proxy network is a network where the gateway computer caches
(or stores) all Internet requests by local users in order to speed
requests to frequently requested pages. So when another user wants
to look at a web page that previous users have requests, they
are given the cached document first from a closer location than
going out into the Internet for the original document. Many cable
modem services act this way.
If a user
sets up a LAN using their cable modem, the computer that is connected
to the cable modem is now a gateway computer. All other local
computers hooked up to that gateway computer will have the same
problem that local computers on a LAN have. Again, special requests
can be made to the cable service to acquire a direct IP address
for a local computer.
Computers
using DSL
A
broadcaster using a Digital Subscriber Line (DSL or sometimes
Asymettrical Digital Subscriber Line) will have a direct connection
to the Internet. Again, if they set up a LAN, they will need to
acquire a direct IP for their local computers if they wish to
broadcast on any computer that is not the gateway. It is also
common for the ISP to block port 80 connections. The use of another
port such as 8080 will usually deal with that problem effectively.