Chapter 15. Private WANs with Internet VPN
This lengthy chapter covers a wide variety of topics related to how companies can use the Internet as a private wide-area network (WAN) by using virtual private network (VPN) technologies. The stars of this chapter are generic routing encapsulation (GRE) tunnels and PPP over Ethernet (PPPoE). To support those topics, the chapter touches on a variety of related topics, including some Internet access technologies, security basics, and some important VPN protocols such as IP Security (IPsec) and Secure Sockets Layer (SSL).
This chapter breaks the material into three major sections. The first discusses Internet access options and the basics of VPN protocols used over the Internet. The second and third major ...
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