Anytime an organization requires network access to a remote facility, engineers need a way to connect the remote site to the main network. WAN technologies are used to do this and come in several types to accommodate different needs. In this course, WAN Technologies for Cisco CCNA 200-125/200-105, you'll look at several WAN technologies including PPP, PPPoE, PPP Multilink, MetroEthernet, dark fiber, MPLS, and GRE/VPN tunnels. First, you'll learn how to implement a PPP connection using encrypted authentication. Next, you'll discover how to bundle several serial links together to increase the bandwidth. Finally, you'll explore how to troubleshoot PPPoE and build a GRE tunnel. By the end of this course, you'll be more comfortable with Wide Area Networks(WANs) communications.