P
Pegasus \(MVP\)
Peter said:I just get a 1 port ADSL modem router from the ISP. From the
specification, it says that I can use it for Internet sharing.
However, as there is only 1 port (1 port for connecting ADSL signal and 1
port for Ethernet), I would like to know why they say that modem is a
router ? From my basic understanding, a router should connect more than 1
machine.
Thanks
An ADSL modem is a device that can process an ADSL-type
signal delivered on the phone line. It assigns an IP address to
your PC that is determined by your ISP. PCs connected to the
Internet via an ADSL modem are vulnerable to hacker attacks.
An ADSL modem/router is an ADSL modem plus a router.
The router acts as an interface between your internal network
and the Internet. It is like a barrier: Your internal IP address
(e.g. 192.168.0.10) is not visible to the outside world. It can
therefore be used by several PCs connected to the internal
network. It's much harder to hack through a router than it is
to hack through a modem.
Most ADSL modem/routers have several output ports but
they don't have to. If yours has only a single port then you need
to buy a switch so that you can connect other PCs too. Switches
are very cheap these days.