What Is Router? And How Does A Router Work?
To fully understand What Is Router?, you must first understand the 3 words.
LAN: A local-area network (LAN) is a computer network that is limited to a small area. A LAN is limited to a room, or a group of buildings, however, a LAN can be connected to other LANs at any distance through telephone lines and radio waves.
Gateway: The gateway acts as a hardware device that acts as a “gate” between two networks. A gateway can be a router, firewall, server, or other devices that enable traffic to move in and out of the network.
NOTE: Gateway is also a hardware company founded in the United States in 1985. The Gateway Company was acquired by Acer in 2007 but still sells computers under the name Gateway.
IP: An IP (Internet Protocol) address is an address of your network hardware. IP helps to connect your computer with your network and other devices around the world. An IP address is made up of numbers or characters.
A router is an inter networking device, inter networking means a device connecting 2 ip network. The router also acts as a gateway. We can also call the router an intelligent device. The router recognizes only Ip and works on the base of ip.
Why is a router a smart device?
If you buy a router from the market today, then after purchasing it, you will set it up for a single time, then the service will continue to serve you for as long as the router lasts.
How is internet access in the router?
When you bring the Internet to your home for the first time, the local area network provider, who puts a wire to your house, one of which connects the wire to your computer for internet access,
If you have a lot of smart devices in your home that need to be connected to the Internet, then in such a situation you have to have a router, because apart from the router, you will not be able to connect the Internet with many smart devices.
How does the router work?
In today’s day, if you buy a router from the market, you will get very good router work at a price which is very smart and works very smartly.
If you look behind a router, you will see many ports where 1 or 2 ports will be seen separately and the remaining 3 or 4 ports will be seen separately. Why does this happen?
You can enter the line inside the 1 or 2 ports which are separated behind the router, which means the internet coming from the wire in your house will be installed on this port.
The remaining 3 or 4 ports are different from where you can exit the line. If you have a lot of computers in your house and you want to use the Internet in all the computers, then you have to line out these ports, all the computers Can access internet
Friends, you must have seen, if the router has 1 or 2 antenna, what is that antenna for?
The antenna is set up to exit the wireless network, you do it through the Internet access cable in the computer at your home.
If you want to connect another smart device and smartphone via wireless then you can do it with the help of
Components Of A Router
- Flash Memory
- RXBOOT Image
- Power Supply
CPU: The CPU executes operating system instructions. The CPU also performs functions such as routing functions, system initialization, and network interface controllers.
ROM: It maintains POST (Power on Self-Test) instructions for diagnostics and also stores bootstrap programs and basic OS software.
RAM: RAM stores routing tables and configuration files while the router is being operated. “Running-configuration” is also stored here. The contents of the RAM are lost when the router is restarted or powered down.
NVRAM: The startup-configuration file is stored in NVRAM. The contents in NVRAM remain after the router is shut down or rebooted.
FLASH MEMORY: This is where the IOS image file is stored, which is the operating system of the router. Content in flash memory remains after reboot or shutdown. It is a type of electrically erasable programmable read-only memory (EEPROM).
BUSES: Most routers have a system bus and a CPU bus. Buses provide a physical means to move bits between different components of a router. Most routers have a system bus and a CPU bus. The system bus communicates between the CPU and the interface. For example, it simply transfers packets to and from interfaces. The CPU bus is used by the CPU to access the router’s storage devices such as NVRAM and flash memory.
POWER SUPPLY: The power supply to the router may be internal or external. Some routers have multiple power supplies for redundancy.
What is a Wi-Fi router?
Once upon a time, computers needed to be wired up to one another in order to communicate. In 1999 Wi-Fi launched as a way for computers to wirelessly connect to one another and the internet.
Through your internet service provider cable line finds its way into your home and connects to a modem. a small device that decodes the incoming internet signal into something your computer (and other devices) can read.
Types Of Router
- Wired router.
- Wireless router.
- Core router and edge router.
- Virtual router.
Wired Router: Wired routers connect directly to the computer via a cable or wired connection and wired router are in the shape of a box.
A connection port of a wired router is used to connect a modem to receive Internet data packs, while another set of ports is connected to a computer to deliver Internet data pack to a wired router.
An Ethernet broadband Router is an example of a wired router; These routers use network address translation (NAT) technology, which allows to be connected with multiple computers to a wired router to share an Internet Protocol (IP) address.
Wired routers use firewalls when providing communication between computers within a network for security purposes.
a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules
Wireless router: Like a wired network, the wireless router connects directly to a modem via a cable to receive Internet data packets.
However, instead carrying the cable to the computer, wireless routers deliver data packets using one or more antennae. It converts the binary code into a radio signal and the antenna is transmitted wireless.
A computer which have wireless receiver that can receive these radio signals and convert them into binary code.
Wired Router establishes a wired local area network (LAN), a wireless router establishes a wireless local area network (Wi-Fi).
Core router and edge router: A core router is a wired or wireless router that distributes Internet data packets within a network, this router distributes data packets from multiple networks other than wired or wireless.
An edge router is also a wired or wireless router which distributes Internet data packets between one or more networks but does not distribute data packets within the network.
Virtual router: A virtual router is acting as a default router for a network sharing computer, not a wireless router.
This was all the information about the router such as what is router?, how does the router work, types of router or components of router.