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Part IV: Wide-Area Networks > Chapter 14. Point-to-Point WANs

Chapter 14. Point-to-Point WANs

This chapter covers the following subjects:

PPP Concepts: This section examines PPP concepts, including control protocols and PAP/CHAP.

PPP Configuration: This section looks at how to configure a simple PPP serial link, as well as how to configure CHAP.

Troubleshooting Serial Links: This section examines the overall serial link troubleshooting process, including typical reasons why an interface has a particular status code.

This chapter is the first of four chapters in Part IV of this book. This part focuses on WAN technologies. This chapter completes the examination of point-to-point links by examining more details about how PPP works, along with a wide variety of troubleshooting topics related to point-to-point leased lines. Chapter 15, “Frame Relay Concepts,” and Chapter 16, “Frame Relay Configuration,” explore Frame Relay technologies. Chapter 17, “Virtual Private Networks,” looks at the concepts behind virtual private networks (VPN). VPNs let you create secure communication paths that work like WAN links, while using other, less-secure networks, such as the Internet.


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