A ROUTER
is a device that sends packets of data between different networks.
A packet is data
which also contains the address of the destination. to send the packet
between routers until it reaches its destination. This is how your
LAN connects to the wider Internet. So when you enter a search term on Google,
your router directs this packet to Google’s servers for processing. Routers may
seem complicated and beyond your understanding, but they're actually quite
simple.
Take mail as an
example. If you want to send a letter to one of your housemates, you might just
address it with “Room A”. But what happens if you want to send a letter to
your best friend who lives in “Room A” of a different house? You would
need more information to differentiate.
So you add a zip
code. But they live in a different state, which you can’t easily get to. So you
hand it over to your friendly mail carrier and using the address and zip code,
the mail carrier will make sure it ends up at the correct destination, even if
it means passing the letter over to a local mail carrier.
What Is It Good For?
Sending packets
between two different networks is technically a router’s only job. However, actually
include quite a lot more than that:
·
4-8 port switch
for the LAN which enables local sharing of services like printers.
·
Network Address
Translator (NAT) used to assign one set of IP addresses within the LAN and one
set outside the LAN to your ISP or a Wide Area Network (WAN).
·
Dynamic Host
Configuration Protocol (DHCP) which assigns IP addresses to each device
connected to the LAN.
·
Firewall to
protect the LAN.
·
WAN Port to
connect the Router to a modem which provides broadband services from your
Internet Service Provider (ISP).
·
Wireless
broadcast letting you connect devices without cables.
Recommended Router Model
The is
one of the best and highest rated routers out there. It has some of
the best networking and wireless performance of all its peers while also being
great value for money.
Before buying
any though make sure that it’ll be compatible with your ISP and.
Hubs, Switches, Routers in a Nutshell
·
Hubs and switches connect computers to create a
LAN.
·
Switches, unlike hubs, know which device the
information is intended for and sends it there.
·
Routers on the other hand can send packets between
LANs, while also assigning IP addresses, acting as a switch and protecting your
LAN.
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