Router

By: Matjaz

The router is a tool of defence against attacking our computer. We can use it in case of security of our internet and PC. A more precise definition of a router is a computer networking device that interconnects separate logical subnets. Routers have many types but basically all are doing the same job.

A router is a computer whose software and hardware are usually tailored to the tasks of routing and forwarding, generally containing a specialized operating system and one or more processors.

However, the proper software and special PCs are able to act as a router.
Routers operate in two different planes:
&bullControl Plane, in which the router learns the outgoing interface that is most appropriate for forwarding specific packets to specific destinations,
&bullForwarding Plane, which is responsible for the actual process of sending a packet received on a logical interface to an outbound logical interface.
Control Plane processing leads to the construction of what is variously called routing information base (RIB). The RIB may be used by the Forwarding Plane to look up the outbound interface for a given packet, or, depending on the router implementation.
Forwarding Plane: for the pure IP forwarding function, router design tries to minimize the state information kept on individual packets. Once a packet is forwarded, the router should retain no more than statistical information about it. It is the sending and receiving endpoint that keeps information on such things as errored or missing packets.

more info: www.infosecuritylab.com

Top Searches on
Networking
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 
 • 

» More on Networking