Home routers use
network address translation (NAT) to provide a single IP address from the
Internet service between various home computers. When traffic from the Internet
reaches your router, your router doesn't know which computer to send it to, so
it throws the traffic away. In effect, NAT acts as a firewall that prevents
incoming requests from reaching your computer. Depending on your router, you
may be able to block certain types of outgoing traffic by changing your router
settings.
It is possible to
forward some traffic to the router by setting up port forwarding or placing a
computer in DMZ (demilitarized zone), where all incoming traffic is sent and
activated. DMZ, of course, forwards all traffic to a particular computer: the
computer will no longer benefit from the router, which acts as a firewall.
No comments:
Post a Comment