340 likes | 575 Views
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:
E N D
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.
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!
Objectives • Serial point-to-point links • PPP authentication • Configuring PPP
Introduction to Serial Communication Some of the many serial communications standards include the following: RS-232-EV.35High-Speed Serial Interface (HSSI)
Demarcation Point The point in the network where the responsibility of the service provider or "telco" ends.
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.
Challenge Handshake Authentication Protocol (CHAP) CHAP provides protection against playback attack through the use of a variable challenge value that is unique and unpredictable.