Authentication in ppp - point to point , Computer Networking

Assignment Help:

Authentication in PPP

PPP can support  authentication operations at the  beginning of a connection. In some  cases reauthentication is also  possible  during  a session.  Endpoints negotiate authentication in the same manner as other options. Authentication is pee r to peer again without  distinction between calling and called parties. This allows either or both endpoints to request authentication credentials from each other. In fact the protocols  for passing  credentials may be differently  may be different for each endpoint. The default is no authentication required. However you can  configure you PPP  software to require it.

The authenticating state  of a PPP connection follows  the establishing  state if either  endpoint agrees tousle an authentication protocols. Otherwise  the connection  transitions immediately  to eh network  state skipping authentication steps altogether. The two common  authentication protocols authentication protocols are:

a.The password authentication protocols (PAP)

b.The challenge  handshake authentication protocols ( CHAP)

These  protocols  have  assigned  numbers and are arguments to the authentication protocols  options  PPP endpoints  include in LCP configure packets. As usual if one PPP endpoint requests  its peer to authenticate itself with a protocols  the peer doesn't understand the  peer  rejects it in an LCP  configure nak response. This endpoint may  propose another  protocols  its peer understand  or terminate the connection.

Each  authentication protocols  has well defined  procedures regarding the messages that endpoint must  send and receive during the authenticating state.  Besides PSP  and CHAP there are  other extensible authentication protocols  in development  and there exists several proprietary protocols  as well.


Related Discussions:- Authentication in ppp - point to point

Thick ethernet wiring, THICK ETHERNET WIRING:  It needs thick coax cab...

THICK ETHERNET WIRING:  It needs thick coax cable. AUI cable joins from NIC to transceiver. AUI cable take digital signal from NIC to transceiver. The transceiver creates anal

What are the major technologies to create client application, What are the ...

What are the five major technologies that can be used to create Client/Server applications? Database Servers Groupware TP Monitors Distributed Objects Intranets.

What are reasons behind using layered protocols, What are reasons behind us...

What are reasons behind using layered protocols  Reasons for using layered protocols, using them leads to breaking up design problem into smaller more manageable pieces and lay

What automatic repeat request, What Automatic Repeat Request (ARQ)? Err...

What Automatic Repeat Request (ARQ)? Error control is both error detection and error correction. It allows the receiver to inform the sender of any frames lost or damaged in tr

Assignment, Hi Sir. I am Deep. I am studying masters of networking. I have ...

Hi Sir. I am Deep. I am studying masters of networking. I have an assignment which is due on Monday 28 August. Is this possible to make it within 5 days? And also tell me that how

Create a client and a server - message queues & socket, Lab will require yo...

Lab will require you to create a client and a server that communicate over either message queues, sockets, or a well known fifo. The data passed will be a simple request/response i

Give the solutions to the threats, Give the solutions to the threats In...

Give the solutions to the threats In order to implement solutions to the threats, it is advisable that the company should maintain proper password protected hardware. Wherever

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd