*** Home Networking - Wireless and Hard
Wire
Router & Security Info ***
(Note -
Hot link definitions nor enabled as yet)
ROUTERS
- After the great deal you found when getting your computer, a
router can be your next best
buy. They are relatively inexpensive (under $90), provide added
security, plus
they
allow multiple computers to use a single internet connection. They
come in two basic versions, either "hard wire" or a
combination unit that provides both "hard wire" and "wireless"
connections. If you have a laptop, wireless is the most common method
used to connect to the internet. Another type of router provides the
some newer features the main
one being "Multimedia Services". If you have Verizon FIOStm,
a special router is supplied as part of their service (Actiontec). A
wireless router will provide service up to 300 feet from the box, but
will be affected by the layout of your home, materials used, etc. A
realistic distance is about 100 feet. Newer versions tend to have
better signal strength providing for greater coverage, plus they are
capable of higher speeds. At the bottom of this page is a list of
popular router providers.
Most routers are relatively easy to set
up. You
take it
out of the box, hook one wire to your cable
modem and one to your
computer, turn the router on and when ready, turn on the computer. It
is as simple as that;sort
of. Most will
come with an installation CD that will step you through the setup. If
you are
a novice, this will be your best bet. It will
most likely install some software on your machine, then step you
through
to "success". When setting up a wireless router, the same steps are
followed plus some special security settings. When using CDto set up
your router, it is important to not connect anything until instructed
to do so.
Routers usually have a feature to allow
for remote
administration. This is feature usually disabled and should be left
that way. Routers operate using a special operating system much like
your PC. It will have a
default login and password. This is the first thing you should change.
Hackers know all of these defaults. They are often as
simple as "admin" and "password".
If you are setting a router up manually,
follow the instructions that should be supplied with the product. You
will need one cable to connect to the
internet via the "Cable Modem" supplied by the provider. This
connection is marked "WAN". A second cable
will be needed for each computer that will be hard wired to it. These
cable are known as "Cat-5" ethernet cables and one or more may be
supplied with the router.
Internet
Service Provider - This is who you get from your internet
service from. For most,
it will be your cable or telephone company. If you still use a modem
over your telephone, it can be many others. AOL still provides such a
service.
IP
ADDRESS - This is a numerical address, in a
special format, assigned dynamically to your computer or router, to
allow traffic to be routed to and from
you and a web, like HughPurvis.com.
This address is in the form of "123.456.789.012". The last 6 digits is
you, within the greater picture. Each provider is assigned a range of
addresses. When
using a router,
your local address will usually look like "192.168.1.nnn" and
the router will know what to do to get it to the correct
connection.
for
your computer, which you normally do not see. The IP Address
assigned by your ISP is also
dynamic, in that it can change periodically andif you use
a
router, it will be assigned that IP Address. The router's firmware will
configure an
internal home
network. An IP Address will be assigned for each device that is
connected to the router. For a diagram of a typical network,
select this; "Typical
Network". These
addresses do not appear on the internet, as they are reserved just for
private network
purposes. Normally your router can provide up to 256 addresses, minus
one for the router's own internal address and one special you will not
ever
see (or use).
ROUTER
SECURITY - During setup, wired or wireless, these
parameters need to be set...
LOGIN
- The default may be blank or something like "Admin" or "Administrator"
or even the brand name. Change it to something else, like your network
name, your name etc.
Password
- Could be blank or something like "password", "passwd" etc. It is most
important to set this to a proper password.
Remote
Administration - This is usually off or disabled
by default. Unless it is really needed, leave it disabled or if
enabled, disable it.
WIRELESS
SECURITY
- There are a several parameters you need to set up when using wireless
connections. The main one is the actual security mode. A lot of people
like to leave it off, but this is a big mistake. Without it, an
outsider can then use your
network, and even get in to your computer. There are three
methods used;
WEP and WPA (personal) and WPA2 (personal)
plus a special
identifier (SSID),
the name of the wireless network...
WEP
- Wired Equivalent Privacy -
considered a weak method, almost not worth being there,
though It
is better than nothing. For a
complete technical
explanation, see WEP defined
on
Wikipedia.
WPA -
Wi-Fi Protected Access -
Considered the
best method. For a complete technical
explanation, see WPA Defined on Wikipedia.
WPA2
- An enhanced version of WPA.
SSID-
Service Set
Identifier - This
item is a name you give to your wireless network. It
allows you to make a connection when you turn on your machine
and
it is
broadcast for all to see, thus you might consider turning
the broadcast
off. Those with a wireless computer within a few hundred feet
of your router can see the SSID and if one of the above security
protocols are not set, actually use your network, or even hack in to
your machine. For a complete
technical explanation, see SSID Defined at Wikipedia.
FIREWALLS
- One function of a router is to act as a firewall. A firewall acts to
block access to your network from unwanted external sources. Rules can
be set to determine what can access your network. Specific web sites,
or external computer networks can be blocked or allowed specific
functions. The default rules of any router are usually good enough. The
router thus protects all computers on your network.
Firewalls can also be software that is
installed on your computer. In fact, all Windows and MAC systems come
with one already installed, automatically enabled and default rules
set. One seldom has to change them. The software version can be
disabled when a router is present. Some consider it overkill. I leave
mine enabled all the time. When traveling and connecting through public
networks, you should make sure it is
enabled.