Finally, you will configure ppp pap authentication and ppp chap authentication. This lab also covers debugging ppp links to see the different states of ppp negotiation. Finally, you will configure ppp pap authentication and ppp chap. Packet tracer configuring pap and chap authentication instructor version instructor note. Use the show interfaces serial command to verify proper configuration of hdlc or ppp encapsulation. Cable a network that is similar to the one in the topology diagram. To configure chap authentication, complete these steps. As usual, take time to read through the question so as to clearly understand what you are required to do. The objective of this lab exercise is to configure two routers sharing a backtoback serial link encapsulated by ppp to authenticate each other using password authentication protocol pap. Pappassword authentical protocol configuration on cisco.
By default, ppp connections are not authenticated or secured. Ccna training point to point protocol ppp tutorial. Enable the use of chap authentication on both routers with the ppp authentication chap command. As a cisco engineer, as well as in the cisco ccna exam, you will be expected to know how to configure and verify ppp. Here is the last post in the cisco commands cheat sheet for ccna students. So to assist you, below we will discuss one of the more difficult ccna concepts. Ppp is a varsatile protocol and supports both synchronous and asynchronous links. This is an updated ccna exam question october 2019. Packet tracer configuring pap and chap authentication topology addressing. Authentication you can use authentication to verify a routers identity when it is connecting into your router. Configure ppp with pap for the cisco ccna using packet tracer, i demonstrate how to configure serial. If you are only interested in cisco knowledge, please follow us, if you want to easily obtain.
In 2008 free ccna workbook originally started as a sharable pdf but quickly evolved into the largest ccna training lab website on the net. Red font color or gray highlights indicate text that appears in the instructor copy only. The website was founded in late 2009 with the goal of providing free cisco ccna labs that can be completed using the gns3 platform. Ppp also supports authentication and two mechanisms are available for this purpose. Repeat step 1 to configure authentication between r2 and r3 changing the usernames as needed. Ppp or point to point protocol is a type of layer 2 protocol datalink layer used mainly for wan.
You might see a different ip addressing, port allocation and ppp configurations. Discover how the password authentication protocol pap and the challenge handshake authentication protocol chap are implemented for better security. Ppp configuration and verification is a fundamental skill. Pap is considered an insecure method because the password is sent in clear text format over the ppp link and has no protection. We can see in the above diagram we will be using three routers, a loop back connection, two switches which we. This field indicates the authentication protocol, either pap or chap. Discover how the pointtopoint protocol ppp is configured as the preferred encapsulation on serial interfaces on cisco routers.
Configure ppp with pap for the cisco ccna duration. What does the engineer need to configure to open the ipv6cp ncp on the link. Pap sends the password in cleartext for authentication so chap is. Pap is an authentication method that can be used over point to point links. This is a lab guide on cisco s packet tracer software about how to configure it between two routers. This ppp questions and answers are used for demonstration purpose only, you read more. New vce and pdf exam dumps from passleader 200125 exam dumps 200125 exam questions 200125 vce dumps 200125 pdf dumps back to the source of this pdf and get more free braindumps. Instead of using the keyword password as shown in the curriculum, you will use the keyword secret to provide a better encryption of the password. After the ppp link establishment phase is complete, a username and password pair is repeatedly sent by the remote node across the link in clear text until authentication is acknowledged, or until the connection is terminated. Here in this lab we will learn how to configure pap between two routers using cisco packet tracer. On the interface, issue the encapsulation ppp command. Rfc 34, ppp authentication protocols, defines two protocols for authentication, pap and chap. If ppp pap sentusername password send hostname and a password in response to pap request if ppp authentication pap router with this command requests other side to authenticate with pap if ppp pap refuse callin all attempts by the peer to force authentication with pap are refused.
Pap provides a simple method for a remote node to establish its identity using a twoway handshake. The protocol type filed in the header allows multiple layer 3 protocols to be carried over the same ppp link. How to configure ppp over ethernet client configuring a. Password authentication porotocol pap and challenge handshake. But before we start configuring it we must know what chap is and why we configure it. Ccna routing and switching practice and study guide. Configure ppp pap authentication between r2 and r3. Configure the name of the other end router and the shared password.
Chap configuration on cisco routers learn linux ccna. You can use any current router in your lab as long as it has the required interfaces shown in the topology diagram. You should recall that if you do not configure ppp on a cisco router, the default encapsulation for serial interfaces is hldc. Pointtopoint protocol ppp currently supports two authentication protocols. Ccnaqualified engineers can plan, install and troubleshoot small to mediumsized networks for companies. This tutorial includes basic configuration tasks on a router, configuring ospf routing protocol, and configuring ppp pap and chap authentication. This password is not used when the router authenticates a remote device. Ppp has two different authentication methods, in todays post we are going to explore the first method which is pap. Understanding and configuring ppp chap authentication cisco. Best cisco ccna ccnp and linuxcentos pdf notes new ccna routing and switching 200125 ccna security and ccna voice best ever ccnp route300101 and 642902 and switch and also best rhcerhcsa linux notes for rhel6 and rhel 7 and also ubuntu and pfsense firewall pdf notes. Around 50% of your exam score will be based on your handson configuration and troubleshooting skills. We strive to collect and produce effective cisco ccna security 210260 exam dumps and 210260 pdf free download helps you improve your skills.
Configure ppp with chap for the cisco ccna duration. Chap is an authentication scheme used by point to point protocol servers to validate the identity of remote. Connecting networks companion guide cisco networking academy cisco press 800 east 96th street indianapolis, indiana 46240 usa. Ppp is one of the most popular layer 2 protocols used on wans. To enable ppp encapsulation on a serial interface, see the configuring serial interfaces module in this manual. To do so, issue the username username password password command, where username is the hostname of. Cisco ccna is the gold standard of networking exams. Pap sends the password in cleartext for authentication so chap is preferred. Password authentication protocol pap and challenge. In this tutorial you will learn how to configure ppppoint to point protocol. In preparation of your ccna exam, we want to make sure we cover the various concepts that we could see on your cisco ccna exam. Essential cisco ios commands ccna training, practice.
This tutorial will be going over basic configuration of ppp pointtopoint protocol. Ppp has two builtin security mechanisms which are password authentication protocol pap and challenge handshake authentication protocol chap password authentication protocol pap is a very simple authentication protocol. In this tutorial you will learn how to configure ppp point to point protocol. Using packet tracer, i demonstrate how to configure serial interfaces for ppp encapsulation and pap authentication. Configure an ipv6 address on each interface on the link. Step 16 password parameters in the pap authentication packet to the peer.
Intentionally break and restore ppp encapsulation configure ppp pap and chap authentication intentionally break and restore ppp pap and chap authentication scenario in this lab, you will learn how to configure ppp encapsulation on serial links using the network shown in the topology diagram. Pap stands for password authentication protocol which is a simple authentication method. Issue the compress predictor command on each interface on the link. Ppp or pointtopoint protocol is a type of layer 2 protocol datalink layer used mainly for wan. Broadband access aggregation and dsl configuration. For chap, configure hostname authentication and the secret password for. Exercises, activities, and scenarios to prepare for the icnd2 200101 certification exam allan johnson cisco press 800 east 96th street indianapolis, indiana 46240 usa. Ppp pap authentication configuration is a fundamental skill. Mpls basic configuration guide cisco asr 920 series ppp and. Ccna 4 chapter 2 ccna4, chapter2, wan technologies. This is a lab guide on ciscos packet tracer software about how to configure it between two routers.
Ccna guide to cisco networking fundamentals chapter 11 ppp and frame relay. Ppp features two methods of authentication pap password authentication protocol and chap challenge handshake authentication protocol a c0nnection is established between two peers only after authentication succeeds. This tutorial explains basic concepts of ppp, ppp encapsulation, ppp authentication pap, ppp authentication chap and how to configure ppp protocol on cisco router step by step. Configure ppp pap authentication between r1 and r3. How to configure ppp with pap in cisco packet tracer duration. In this part we will learn more about two authentication methods used in authentication phase of ppp. Free ccna course, networking fundamentals, routing, tools addressing, challenge handshake authentication protocol chap, cisco, cisco ios commands, cisco packet tracer, ethernet, ipv4, networking, osi, password authentication protocol pap, pointtopoint protocol ppp, pointtopoint protocol over ethernet pppoe, tcpip, tunnel. The encapsulation ppp command has no arguments, however, you must first configure the router with an ip routing protocol rip, eigrp or ospf to use ppp encapsulation.
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