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CCNA 4 v3.1 Module 3 PPP

CCNA 4 v3.1 Module 3 PPP. Objectives. Introduction to Serial Communication. Transmission system encodes bits into electrical voltage using methods like NRZ-L or AMI Some of the many serial communications standards include the following : RS-232-E V.35 High - Speed Serial Interface (HSSI).

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CCNA 4 v3.1 Module 3 PPP

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  1. CCNA 4 v3.1 Module 3 PPP

  2. Objectives

  3. Introduction to Serial Communication Transmission system encodes bits into electrical voltage using methods like NRZ-L or AMI Some of the many serial communications standards include the following: RS-232-EV.35High-Speed Serial Interface (HSSI)

  4. Time-Division Multiplexing

  5. Demarcation Point The point in the network where the responsibility of the service provider or "telco" ends.

  6. DTE-DCE

  7. Serial Connection Options

  8. DTE/DCE Interface • The DTE/DCE interface for a particular standard defines the following specifications: • Mechanical/physical - Number of pins and connector type • Electrical - Defines voltage levels for 0 and 1 • Functional - Specifies the functions that are performed by assigning meanings to each of the signaling lines in the interface • Procedural - Specifies the sequence of events for transmitting data

  9. HDLC Encapsulation

  10. Configuring HDLC Encapsulation

  11. Troubleshooting a Serial Interface

  12. 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.

  13. PPP Layered Architecture

  14. PPP and the DataLink Layer

  15. PPP and the Network Layer

  16. Establishing a PPP Session

  17. PPP Operation

  18. Link Control Protocol Options

  19. PPP Configuration Options

  20. Network Control Protocol

  21. PPP Authentication Protocols

  22. PPP Authentication Protocols

  23. Password Authentication Protocol (PAP)

  24. Challenge Handshake Authentication Protocol (CHAP) CHAP provides protection against playback attack through the use of a variable challenge value that is unique and unpredictable.

  25. PPP Encapsulation and Authentication Process

  26. CHAP Authentication Process

  27. Configuring PPP

  28. Configuring PPP Authentication

  29. PAP Configuration

  30. CHAP Configuration

  31. Verifying PPP

  32. PPP Configuration Commands

  33. Debug PPP Authentication

  34. Summary

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