What Does A Router Do?


A router is a device that helps direct traffic between computers on a network. It is similar to a switch, but it also has the ability to connect to multiple networks. This allows for more flexibility when setting up a network. Routers are commonly used in home networks and small businesses. They can be used to connect to the Internet, as well as other devices on the network. Routers can also be used to create a virtual private network (VPN). In this article, we will discuss what routers do and how they work. We will also look at some of the different types of routers that are available.

What is a Router?

A router is a networking device that forwards data packets between computer networks. Routers work at layer 3 of the OSI model, the network layer. This layer handles the routing of data packets across networks.

Routers use a process called routing to determine the best path for each data packet to take. When you connect to the internet, your computer sends data packets to a router. The router then forwards those packets to their destination. The router uses information in its routing table to decide where to send each data packet.

Routing tables are made up of entries that tell the router where to send data packets based on the destination address. Each entry in a routing table has a route, which is a path that the router can take to reach a specific network or destination. Routes can be direct, meaning that they go from one network directly to another. Or, routes can be indirect, meaning that they go through another network before reaching their destination.

Indirect routes are usually used when there is more than one way to reach a destination. For example, if you want to get from your home network to your office network, there might be multiple routes you could take.

How does a Router Work?

A router is a piece of hardware that connects two or more computer networks. Routers use protocols, such as Transmission Control Protocol/Internet Protocol (TCP/IP), to send and receive data packets between computers on the network.

When a data packet comes into the router from one of the connected networks, the router reads the destination address of the packet and forwards it to the next network on its way to the correct destination. The router keeps track of which connection goes to which network so it can properly forward incoming packets.

Routers can also perform other functions, such as NAT (Network Address Translation) which allows for multiple devices on a single network to share a single IP address. NAT helps to conserve IP addresses and can improve security by hiding internal network details from external users.

What are the Different Types of Routers?

There are three main types of routers: wired, wireless, and broadband. Each has its own set of pros and cons.

Wired routers are the most reliable type of router. They provide a fast and consistent connection. However, they require a physical connection to your devices, which can be a hassle.

Wireless routers are more convenient than wired routers. They don’t require a physical connection to your devices and can be easily set up. However, they can be less reliable than wired routers.

Broadband routers are the fastest type of router. They provide a high-speed connection and can be used with both wired and wireless devices. However, they can be expensive.

What are the Pros and Cons of Using a Router?

A router is a specialised computer that connects two or more networks and forwards data packets between them. Routers use protocols such as RIP, OSPF, BGP to learn about the best path for forwarding the data packets.

Routers are used in home networking, small office/home office (SOHO) networking and enterprise networking.

The main advantage of using a router is that it can connect different types of networks together, such as Ethernet and Wi-Fi. This allows you to have different devices on each type of network and still be able to communicate with all devices. Another advantage of routers is that they can protect your network from unauthorised access by utilising security features such as firewalls and encryption.

There are a few disadvantages to using routers. One disadvantage is that they can be expensive, especially if you need a high-end router for your business. Another disadvantage is that routers can be complex to set up and configure, which may require the help of an IT professional. Lastly, routers can fail or crash, which would result in your network being unavailable until the router is repaired or replaced.

How to Choose the Right Router for You?

If you’re looking for a new router, there are a few things to keep in mind. Here are a few tips to help you choose the right one for you:

  •  Consider your needs. What do you need your router to do? Do you need it to be fast? Do you need it to have a long range? Do you need it to support multiple devices?
  •  Research your options. Once you know what you need, take the time to research your options. Read reviews, compare prices, and look at features to find the best fit for you.
  •  Ask for help. If you’re not sure which router is right for you, ask for help from a sales associate or customer service representative. They can help you narrow down your choices and find the perfect router for your needs.


A router is a device that forwards data packets between computer networks, creating an efficient and effective way for devices to communicate with one another. By understanding what a router does, you can see how important it is to have one in your home or office. Whether you are looking to improve your home network or want to understand how routers work, this article has hopefully provided some useful information.

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