perform the "traffic directing" functions on the Internet.
of your router as a Traffic cop. Picture
a traffic cop in the center of a four-way intersection. In this example the
traffic cop is the router. The traffic cop directs traffic (data) coming in and
sends it forward down the correct lane, while blocking unauthorized vehicles
(data). Basically, a router keeps your network invisible to the outside world.
familiar type of routers are home and small office routers that simply pass data,
such as web pages, email, IM and videos between the home computers and the
of a router would be the owner's cable or DSL router, which connects to the
Internet through an ISP. More sophisticated
routers, such as enterprise routers, connect large business or ISP networks up
to the powerful core routers that forward data at
high speed along the optical fiber lines of the Internet backbone