Router and Hub


What is a Router:

A router is a networking device that operates on the third layer of the ISO-OSI paradigm, known as the network layer. Allowing data to travel between the networks establishes a direct connection between them. Both LAN and MAN use routers to transmit data in packet form.

One or more packet-switched networks or subnetworks can be connected using a router. By sending data packets to their intended IP addresses, it manages traffic between networks and permits several devices to share an Internet connection.

Although there are many different kinds of routers, most transfer data between LANs (local area networks) and WANs (wide area networks). A LAN is a collection of linked devices confined to a certain region. Typically, a LAN needs just one router.

In comparison, a WAN is a sizable network dispersed across a sizable geographic area. For example, large organizations and businesses with numerous sites across the nation will require individual LANs for each location, which connect to the other LANs to form a WAN. A WAN frequently requires numerous routers and switches due to its wide distribution.

How does the router work?

Consider a router as an air traffic controller and data packets as planes flying to various airports (or networks). Each packet must be directed as quickly as possible to its destination, just as each plane has a different destination and travels a distinct route. A router guides data packets to their intended IP address, just like an air traffic controller ensures that aircraft reach their destinations without getting lost or experiencing significant disruptions en route.

An internal routing table, a list of routes to different network destinations, is used by a router to direct packets effectively. The router first analyses the header of a packet to establish its destination before consulting the routing table to determine the fastest route there. The packet is subsequently forwarded to the following network along the path.

What are the many router types?

A router must first talk with a modem to connect a LAN to the Internet. There are primarily two methods for doing this:

Wireless router: A wireless router connects to a modem with an Ethernet connection. It disseminates data by turning binary code packets into radio signals, which are wirelessly disseminated using antennae. Instead of establishing LANs, wireless routers build WLANs (wireless local area networks), which link numerous devices together through wireless communication.

Wired router: Like a wireless router, a wired router connects to a modem using an Ethernet connection. It then establishes a LAN, connects the network’s devices to the Internet, and connects to one or more of the network’s devices via different cables.

What is Hub?

A hub is a straightforward networking device that solely functions on the surface of the ISO-OSI paradigm’s physical layer or the top-level layer. The hub does not offer packet filtering; instead, it uses electric impulses to convey data. Only used in LANs, it is a form of half-duplex transmission method.

This article will examine the true definitions of hub and router and their intended applications.

Hubs, network switches, and routers are the bridges that connect computers, network devices, and other networks when a connection is necessary. All three of these device kinds can carry out the same task, and technicians occasionally may use the phrases interchangeably.

However, this will confuse the public as to whether they are the same item or distinct from one another.

S.No. Router Hub
1. The OSI model’s network layer is where routers function. Hub uses the OSI model’s physical layer for operation.
2. The full duplex mode of transmission is provided by the router. The half-duplex method of transmission is offered by the hub.
3. Data is transferred via packets by the router. Hub sends information as electrical signals or bits.
4. A router is a highly developed and popular gadget. Hub is a rudimentary form of technology that is rarely utilized.
5. A router is a costly piece of equipment. Hub is significantly less expensive because it lacks intelligence.
6. Both LAN and MAN utilize routers. Hub, however, is often restricted to LAN use.
7. There are two forms of routing: adaptive routing and non-adaptive routing. Hubs can be either Active or Passive.

Which Should I Purchase?

Whatever you choose to utilize for your network, you must ensure that it can carry out all of the network’s necessary tasks. A wireless router is advised for performance because it enables multiple devices to connect to the network. A router is a good option with relatively high performance and reduced cost if your budget is tight.


Users often struggle to understand the distinctions between a hub and a router. Finding the best device for your network might be aided by being aware of these differences. After reading this post, I hope it will be easier for you to decide which devices you need by giving you a clearer understanding of the differences between hubs and routers.

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