ccna 4 v3.0 module 3 ppp
DESCRIPTION
CCNA 4 v3.0 Module 3 PPP. Purpose of This PowerPoint. This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.0. It was created to give instructors a PowerPoint to take and modify as their own. This PowerPoint is: - PowerPoint PPT PresentationTRANSCRIPT
1© 2003, Cisco Systems, Inc. All rights reserved.
CCNA 4 v3.0 Module 3 PPP
222© 2003, Cisco Systems, Inc. All rights reserved.
Purpose of This PowerPoint
• This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.0.
• It was created to give instructors a PowerPoint to take and modify as their own.
• This PowerPoint is:NOT a study guide for the module final assessment.NOT a study guide for the CCNA certification exam.
• Please report any mistakes you find in this PowerPoint by using the Academy Connection Help link.
333© 2003, Cisco Systems, Inc. All rights reserved.
To Locate Instructional Resource Materials on Academy Connection:
• Go to the Community FTP Center to locate materials created by the instructor community
• Go to the Tools section• Go to the Alpha Preview section• Go to the Community link under Resources• See the resources available on the Class home page for
classes you are offering• Search http://www.cisco.com • Contact your parent academy!
444© 2003, Cisco Systems, Inc. All rights reserved.
Objectives
• Serial point-to-point links• PPP authentication• Configuring PPP
555© 2003, Cisco Systems, Inc. All rights reserved.
Introduction to Serial Communication
Some of the many serial communications standards include the following:
RS-232-E V.35 High-Speed Serial Interface (HSSI)
666© 2003, Cisco Systems, Inc. All rights reserved.
Time-Division Multiplexing
777© 2003, Cisco Systems, Inc. All rights reserved.
Demarcation Point
The point in the network where the responsibility of the service provider or "telco" ends.
888© 2003, Cisco Systems, Inc. All rights reserved.
DTE-DCE
999© 2003, Cisco Systems, Inc. All rights reserved.
Serial Connection Options
101010© 2003, Cisco Systems, Inc. All rights reserved.
HDLC Encapsulation
111111© 2003, Cisco Systems, Inc. All rights reserved.
Configuring HDLC Encapsulation
121212© 2003, Cisco Systems, Inc. All rights reserved.
Troubleshooting a Serial Interface
• Five possible problem states can be identified in the interface status line of the show interface serial display: Serial x is down, line protocol is down. Serial x is up, line protocol is down. Serial x is up, line protocol is up (looped). Serial x is up, line protocol is down
(disabled). Serial x is administratively down, line
protocol is down.
131313© 2003, Cisco Systems, Inc. All rights reserved.
PPP Layered Architecture
141414© 2003, Cisco Systems, Inc. All rights reserved.
PPP and the Data Link Layer
151515© 2003, Cisco Systems, Inc. All rights reserved.
PPP and the Network Layer
161616© 2003, Cisco Systems, Inc. All rights reserved.
Establishing a PPP Session
171717© 2003, Cisco Systems, Inc. All rights reserved.
PPP Operation
181818© 2003, Cisco Systems, Inc. All rights reserved.
LCP Options
191919© 2003, Cisco Systems, Inc. All rights reserved.
PPP Configuration Options
202020© 2003, Cisco Systems, Inc. All rights reserved.
NCP
212121© 2003, Cisco Systems, Inc. All rights reserved.
PPP Authentication Protocols
222222© 2003, Cisco Systems, Inc. All rights reserved.
PPP Authentication
232323© 2003, Cisco Systems, Inc. All rights reserved.
Password Authentication Protocol (PAP)
242424© 2003, Cisco Systems, Inc. All rights reserved.
Challenge Handshake Authentication Protocol (CHAP)
CHAP provides protection against playback attack through the use of a variable challenge value that is unique and unpredictable.
252525© 2003, Cisco Systems, Inc. All rights reserved.
PPP Encapsulation and Authentication Process
262626© 2003, Cisco Systems, Inc. All rights reserved.
CHAP Authentication Process
272727© 2003, Cisco Systems, Inc. All rights reserved.
Configuring PPP
282828© 2003, Cisco Systems, Inc. All rights reserved.
Configuring PPP Authentication
292929© 2003, Cisco Systems, Inc. All rights reserved.
PAP Configuration
303030© 2003, Cisco Systems, Inc. All rights reserved.
CHAP Configuration
313131© 2003, Cisco Systems, Inc. All rights reserved.
Verifying PPP
323232© 2003, Cisco Systems, Inc. All rights reserved.
PPP Configuration Commands
333333© 2003, Cisco Systems, Inc. All rights reserved.
Debug PPP Authentication