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

Define the term - store-and-forward and cut-through switch, Store-and-forwa...

Store-and-forward switch  The layer 2 switch accepts a frame on an input line, buffers it briefly, and then routes it to the appropriate output line. Cut-through switch

Explain how the LAN model be developed, Explain how the lan model be develo...

Explain how the lan model be developed The LAN model can be developed incrementally. If LAN is just a long cable. it cannot be brought down by single failure (if servers are re

What is d-amps, What is D-AMPS D-AMPS uses 832 channels (in every dire...

What is D-AMPS D-AMPS uses 832 channels (in every direction) with three users sharing a sole channel. This allows D-AMPS to support up to the 2496 users simultaneously per cel

Troubleshooting tcp/ip, I''m having trouble with understanding a diagram fo...

I''m having trouble with understanding a diagram for my assignment

Write the definition of ipx and udp, Write the definition of IPX and UDP ...

Write the definition of IPX and UDP IPX: Inter-network Packet Exchange supports the transport and network layers of the OSI network model. It provides fast, unreliable, communi

Network Administrator Support, Dear expert; I have an assignment about Net...

Dear expert; I have an assignment about Network Administrator Support . Here is the topic about:- Virtualization is an emerging type of network operating system that is currently

What command do we use to disable domain lookup, no ip domain-lookupcommand...

no ip domain-lookupcommand is use to disable domain lookup

Application layer - computer network, Application Layer The  applicati...

Application Layer The  application layer is where  network  applications and their  application layer protocols  reside. The internet application layer includes many protocols

Connectionless multiplexing and de multiplexing, Connectionless Multiplexi...

Connectionless Multiplexing  and De multiplexing Java program running in a host can create a UDP socket  with the  line Datagram's socket my socket =  new datagram's socket

Determine the definition of hdlc, Determine the definition of HDLC HDLC...

Determine the definition of HDLC HDLC has only one address field. In a LAN, any station may transmit to any other station. The receiving station needs to see its own address in

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