What is router?

Hybrid devices that combine the features of both bridges and routers.

Showing Answers 1 - 14 of 14 Answers


  • Dec 16th, 2005

Device that routes routable packets, but not bridges

  Was this answer useful?  Yes


  • Apr 21st, 2007

A router is a device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP's network. Routers are located at gateways, the places where two or more networks connect, and are the critical device that keeps data flowing between networks and keeps the networks connected to the Internet. When data is sent between locations on one network or from one network to a second network the data is always seen and directed to the correct location by the router. They accomplish his by using headers and forwarding tables to determine the best path for forwarding the data packets, and they use protocols such as ICMP to communicate with each other and configure the best route between any two hosts. The Internet itself is a global network connecting millions of computers and smaller networks — so you can see how crucial the role of a router is to our way of communicating and computing.

puneet chawla

  • Nov 4th, 2007

A router is a layer -3 device works on layer-3 of the OSI reference model.
Router works on an IOS that is a 16 bit operating system.latest IOS is 12.4 by CISCO.

The main functionality of a router is that it stop the broadcast that a layer 2 device (switch cannot do).

Apart from the above it is used to join 2 more dissimilar class WAN networks.

  Was this answer useful?  Yes


  • Dec 17th, 2007

Router is a device that forwards data packets along networks. a router is connected to at least two networks. routers are located at gateways.

  Was this answer useful?  Yes


  • Feb 28th, 2008

Router is a layer 3 device.Routers are used to connects networks together.Routers routes packets of data from one network to another.Routers breaks up broadcast domain (it is the set of all devices on a n/w segment that hears all broadcast sent on that segment).breaking up a broadcast domain is important because when host or server sends a n/w broadcast,every device on n/w must read and process that broadcast.but when router interface receives this broadcast then router discards this broadcast without forwarding it to another network.
Routers can filter network based on layer 3 information.

  Was this answer useful?  Yes

For very simple understanding, router is a device which do noting more that connecting 2 different public-public, private-public or private-private networks.

It only work as a gate for the data packets to move from one network to other.
Because it work on IP addresses, it belongs to Layer-3 of the OSI ref. Model ie. network layer.
In my point of view, routers are those devices which are manufactured to implement the predefined rules of the networking and they work on protocols.

  Was this answer useful?  Yes

Sohan Choudhary

  • Oct 3rd, 2013

Router is communicate two different network between each other.

  Was this answer useful?  Yes


  • Feb 7th, 2014

Router perform routing,
routing is selection of best available path,in the network.

  Was this answer useful?  Yes


  • Mar 18th, 2014

It is a device which routes packets in network

  Was this answer useful?  Yes

vinay raj

  • Jan 8th, 2015

router is a internetworking device communication between two or more different network it is a layer 3 device of osi reference model router finds a best route path between tow networks n router is a default gateway for a network.

  Was this answer useful?  Yes

Ganesh Thigale

  • Jun 3rd, 2015

Router is used to connect the two networks not two devices. Also router is used to transfer the data from source to destination.

  Was this answer useful?  Yes


  • Jul 25th, 2015

Router is a 3rd layer device
Connecting two networks
Routers are connecting by serial interface

  Was this answer useful?  Yes

Give your answer:

If you think the above answer is not correct, Please select a reason and add your answer below.


Related Answered Questions


Related Open Questions