Internet Access (WAN) Links
The Internet also happens to use a huge number of WAN links. All of those lines connecting an enterprise or home to one of the ISPs in Figure 3-13 represent some kind of WAN link that uses a cable, while the phones create their WAN link using wireless technology. These links usually go by the name Internet access link.
Historically, businesses tend to use one set of WAN technologies as Internet access links, while home-based consumers use others. Businesses often use leased lines, connecting a router at the business to a router at the ISP. The top of Figure 3-14 shows just such an example.
Figure 3-14 Three Examples ...
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