How to know the benefits of easily Easy Learning wide Area network (wan)

 “On this page you will find about the benefits of easily Easy Learning wide Area network (wan). wide Area network (wan) a major role in IT department and in the Computer professional . We will explain why easily Easy Learning Computer Hardware is important, how to Learning wide Area network (wan), and how to learn it if you're unfamiliar with wide Area network (wan). "

What is wide Area network (wan) and why is it important? 

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 Why is wide Area network (wan) impotent?

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 wide Area network (wan) and Reminders:

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 How to know the benefits of easily Easy Learning  wide Area network (wan):

 Wide area network

->A wide area network is a computer that connects multiple areas for communication.

Network types:

1.point to point

2.point to point

Point to point:

->This is the dedicated bandwith only using the two devices.

->The entire capacity is reserved for the two connected devices.

->It have single sender and single receiver.

->point to multipoint

->This link is shared between two more devices.

->The capacity is shared among the device connected on that link

->It have one sender and multiple receiver.

Wan protocol :

Point to point wan protocols

1.hdlc (high level data link control)

2.ppp (point to point protocol)

hdlc:

->It is the layer 2 protocol

->It is cisco proprietary protocol

->hdlc are used to connect the point to point serial connection

->It does not support have any authentication

ppp(point to point protocol):

->ppp is the base of hdlc

->both hdlc and ppp are used to connect the point to point serial connection.

ppp(work same like hdlc):

->It supports the authentications password with the help of pap and chap

Pap-> password authentication protocol

Chap->challenge handshake authentication protocol.

These protocols take your user name and password to ensure and allow you to access the network.

Syntex of pap:

router 1

(config)#username r2 password cisco

router(config)#interface serial 2/0

router(config-if)#Encapsulation ppp

router(config-if)#ppp authentication pap

router(config-if)#no shutdown

router(config-if)#ppp pap send-username password junnifer

router 2

router(config)#username r1 password junifer

router(config)#interface serial 2/0

router(config)#Encapsulation ppp

router(config)#ppp authentication pap

router(config)#no shutdown

router(config)#ppp pap sent-username r2 password cisco

Syntex of chap:

router(config)#hostname r1

router(config)#username r2 password cisco

router(config)#interface serial 2/0

router(config)#Encapsulation ppp

router(config)#ppp authentication chap

router(config)#no shutdown

router 2:

router(config)#hostname r2

router(config)#username r1 password cisco

router(config)#interface serial 2/0

router(config)#Encapsulation ppp

router(config)#ppp authentication chap

router(config)#no shutdown

 

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