A technique of internetworking called Tunneling is used when the source and destination networks of the same type are connected through a network of a different kind. It involves allowing private network communications to be sent across a public network (such as the Internet) through encapsulation. Tunneling provides VPNs with VPNs over public data networks to provide cost savings for both end-users.

In this course, Tunnels in Networking, you will learn to configure supported tunnel types. Further, you will learn the basics of tunnels. As you move on, you will learn to identify tunnel types. Next, you will discover kinds of Tunneling such as IP-in-IP, GRE, and SSH. After that, you will learn dynamic routing protocols in Tunneling. Next, you’ll find how tunnels work and see examples of where it is used.

Further, you will learn to Encrypt GRE Tunnel with IPSEC and 802.1Q tunneling (Q-in-Q) Configuration. Next, you will explore IPv6 ISATAP (Intra Site Automatic Tunnel Addressing Protocol) and L2TPv3 (Layer 2 Tunnel Protocol Version 3). Further, you will learn IPv6 over IPv4 GRE with IPSec. Finally, you will explore how to configure network tunnels in IP-IP and GRE. At last, you will learn to troubleshoot Tunnel Interface States to constantly flap and disable keepalives to the interface up/up.

By the end of the course, you’ll have the skills and knowledge to configure and support network tunnels on any device.