Difference between LAN and WAN wireless routers

The routers are placed between the LAN and WAN. To understand the role of a wireless router, it is important to know the difference between a LAN and a wide area network. Simply put, when you connect to a wireless router with a computer or smartphone, it becomes part of the local network. Everything outside this local network - essentially all the Internet - is the wide area network. Understand local networks As the name suggests, a LAN is a network limited to a small area, such as a house or office, and is generally confined to a single building.

The local network can consist of computers, smartphones, TVs and tablets. A wireless LAN is usually limited to the radius of a wireless access point that can be a few hundred feet. However, this distance can be extended by connecting the additional wireless access points to the network. A Wi-Fi router is an example of a wireless access point. Enterprise routers are basic product for any business/enterprise.

 understand wide area networks An extended network is a network covering a large geographical area. Can be as wide networks as a state, a country or the world. The Internet itself is a type of wide area network because it covers the whole world. Although a network connecting local area networks in the same city, such as a group of offices belonging to the same company, these are usually called metropolitan networks.

 LAN and WAN router ports Most wireless routers have at least two ports: a WAN port and one or more LAN ports. In all homes and most small businesses, the WAN port connects to a broadband modem, such as a DSL or cable modem, which connects the router to the Internet. This port is labeled either "WAN" or "The Internet," depending on the manufacturer.

 LAN ports are used to connect computers that do not have Wi-Fi access with an Ethernet cable. Once connected, these computers can access the Internet and other computers on the local network, as can those using a Wi-Fi connection. The role of the router A wireless router has two main roles: Internet sharing and protection. To receive data l`Internet, such as email or web pages, each computer connected to the Internet needs  Internet Protocol address, which is provided by your Internet service provider.

Without an IP address, other computers do not know where to send the requested data. The router acts as an access controller between the local network and the Internet. It uses Internet IP l`adresse himself and then provides the computers on the LAN with their own IP addresses, which can not be seen outside the local network. Because computers outside the local network does not know the IP addresses provided by the router, they can not access those computers without authorization making it difficult for hackers or malicious software to get the local network. Other router features such as encryption add even more security to the local network.