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The majority of households within the UK, Europe and also the US will possess a connection to the Internet, and in many cases will have a very device known as being a Wireless Router to provide that connectivity for at the very least 1 computer device. In many instances the Wireless Router will be used to connect multiple devices from your local WLAN for the Public Internet.

Before we specifically describe a Wireless Router, it can be probably best to explain the role of the Router in a data network. A Router's role would be to read the logical IP Address on packets and determine which network or sub network those packets need to be delivered to. A simple way to check at the router is always to compare it to your postal sorting office where letters have their post codes or zip codes checked to ascertain which area of the country the letter is destined for. In the UK, the first part with the postal code determines the general area such as an area of London or Manchester, and the 2nd part determines a genuine street or road. An IP Address, when coupled with a network mask does almost the same thing, but alternatively of the Geographical area, the router is capable of determine a specific area of the network.

A local router that is attached to some Specific Geographic Area Network or Wireless Neighborhood Network acts since the local postman by determining the physical MAC Address of an device so which it can deliver packets towards the correct computer device.

In order for connecting towards the Internet we normally have to have a modem that runs the same protocols as the service Provider Access Network. In many instances we is likely to be using either an ADSL Modem or possibly a Cable modem depending on who our supplier is.

A wireless Router will usually combine the functions of an modem, a router and a wireless access point, and provide not only wired connectivity to local devices by means of an Ethernet cable, but also supply the option of connecting to local devices by means of a wireless technology specified in the IEEE 802.11 Wireless standard. The IEEE 802.11g standard enables local wireless connectivity at 54Mbps from the 2.4Ghz ISM frequency bands. The IEEE 802.11n standard was ratified in 2009 and provides for enhanced data rates up to 300 as well as 600Mbps and incorporates the MIMO ( Multiple Input Multiple Output) technology which necessitates the use of additional antennas. The channel width can be doubled from 20Mhz wide channels combined with previous versions of the standard to 40Mhz. Routers running the 802.11n standard with MIMO are usually a little higher priced due for the cost with the additional antennas.

The home Wireless router will also act like a DHCP (Dynamic Host Configuration Protocol) Server, so that local IP Addresses could be automatically served approximately local computer devices, doing away with all the should manually configure IP parameters on each an every local device. Another protocol running around the wireless router with be NAT (Network Address Translation), which translates locally routable IP Addresses to Globally routable IP Addresses needed around the Internet. What this means is we could all use the identical local IP Addresses on our LAN or WLAN to communicate locally, but use the Global IP Address given by our Company when accessing the Internet. The router translates from local to global on the way in order to avoid it and also the reverse as packets are routed for the local network.

Any network needs a a higher level security, specially when connected for the Public Internet, otherwise anyone globally might have access for your network. The router will give you this security by having a built-in Firewall function. Wireless networks have additional security issues because from the proven fact that anyone within range of your wireless network, who includes a wireless access point or device could join the network and for your reason eavesdrop on data conversations, or worse still access your personal computer oral appliance steal or corrupt information. For this reason a amount of Wireless security protocols are already designed to protect the WLAN.

The first wireless security protocol was WEP (Wireless Equivalent Privacy) which uses an Authentication and Encryption key normally of 64 or 128 bits long to safeguard the info because it traverses the wireless lan. WEP keys can simply be broken by someone determined enough to do it and programs are freely available for the Internet for this purpose. For most home users WEP may be sufficient, but when you don't necessarily know who your neighbours are along with their intentions, it really is safer to protect any local wireless network with a more complex security protocol. WPA (Wi-Fi Protected Access) uses much stronger encryption than WEP and really should be utilized in preference to WEP when necessary. It is very important to note that most wireless routers come packaged with wireless security turned off, so it really is up towards the consumer to determine the level of security required also to configure the parameters when originally setting increase WLAN. In case you usually are not technically minded then look for a friend of relative which includes some knowledge and judge the best protection available on the device, that can normally be WPA.

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