When designing wireless networks, you can ask what is the difference between the router and the access point. The router needs to think of multiple servers as it performs many functions like a server. The access point provides only a portal for the wireless client that is connected to the existing local network.

Routers can perform many functions . Routers can connect multiple WLANs like a traffic police officer. Routers also work as a DHCP server. The DHCP server assigns a dynamic IP address to the computer each time the computer is started. If you do not have a DHCP server, you must assign a permanent IP address to each computer on your network.

As I said before the router could work as a traffic cop. You can use a router to forward the port to some computers on the LAN. For example, you can control all internet traffic that searches for the port number of the game server on a particular computer on your local computer.

The ability to connect multiple computers to the Internet is one of the main features of a router. We assign a WAN IP address to the router from the ISP. This IP address is called a public IP address that everyone can see on the Internet. Because multiple computers are connected to the router, the router uses NAT protocol {Network address translation} NAT assigns the computers that are behind the IP address of the routers, their private IP addresses. NAT acts as a firewall because computers on the Internet can not even see computers in theory. You will only see the router's IP address. NAT blocks traffic to access your computer, but will not block trojans from leaving the Internet. Therefore, I recommend installing a firewall on LAN computers.

The role of the access point at the LAN to allow the wireless user to access. The more people enter the door simultaneously, the slower the number of people. 802.11b access points are said to provide a temporary upload speed, but the actual speed is about 5MPS. The 802.11g has a resolution of 54 megapixels and the actual transfer rate is 20 MBps. Access points have the same security features as the router, such as WEP, WPA, 8021x, and TKPI, but do not have a router, such as a router. Access points do not have NAT, which would give you an unnecessary layer for your network. To keep simple access points, you simply simulate the laptop's connection to the wall port, and that's what it is. The router is used at the boundaries of the network to decide on traffic cops, who can access and block the ones you want to keep.

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