Gateway

The heart of a wireless network is the gateway. The wireless gateway is a device that allows a computer and other Internet-enabled devices to access the Internet connection. It brings jointly the functions of a wireless access point and a router, and sometimes provides firewall functionality as well. The firewall isolates a PC from incoming connections by unconstitutional computers on the Internet while still allowing access the Internet. A router is a hardware device or software program that allows communication connecting computers on the personal network and the Internet. 

The reason most people want a wireless gateway in their home is to share their Internet connection with multiple PCs they have around the house. A wireless network setup is needed if the user wants to go wherever in the network range and get a connection without the use of cables. With a wireless access point (WAP), which provides heightened wireless security, users are able to add devices that access the network with few or no cables. Wireless gateways usually comprise features like network address translation (NAT) and dynamic host configuration protocol (DHCP) functionality. NAT translates a public IP into the private IP addresson a network as built-in DHCP automatically hands out network design information to each PC. Additional features, such as a print server, multi-port switch, and content filtering, may be provided by further advanced gateways.

         A wireless gateway is usually easy to install. The installation procedure is different from product to product, so the installer should be sure to read the manual and follow the directions carefully. In most cases, however, a wireless gateway will use some standard cables and networking procedure.

When setting up a home network, an installer will most likely need several CAT5 Ethernet cables, which are the most commonly used cable. Depending on the type of Internet services being accessed, a length of coaxial cable may be required as well. Any computer or other device that will access the Internet via the wireless gateway will need to have an adapter in order to receive signals from the gateway. Wireless protocol choices include 802.11b and the newer 802.11g, which is about five times faster than 802.11b.   

         Two varieties of ofencryption are available to protect the data on a wireless network. Wireless Encryption Protocol (WEP) is an older system that is supported by nearly all wireless equipment, while a new system called Wireless Protected Access (WPA) is extra robust, and comes with the more recently unconfined hardware. Wireless gateway routers often will have a hardware based firewall built in as well. This provides some additional security from incoming malicious data, as well as safeguarding private information stored on computers and extra devices. Combining firewall, Internet gateway, and local network access, makes the wireless gateway router a converged device. Most of these network devices have access points inside for controlling the unusual rights of entry. The software installed within the router, also known as firmware, provides options for security as well as admittance to and from both the LAN and the Internet. Security encryption for wireless access will allow only devices with the correct security key to connect and use the gateway router.

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