From the course: Cisco Certified Support Technician (CCST) Networking (100-150) Cert Prep

Unlock this course with a free trial

Join today to access over 25,500 courses taught by industry experts.

IPv6 loopback

IPv6 loopback

From the course: Cisco Certified Support Technician (CCST) Networking (100-150) Cert Prep

Start my 1-month free trial Buy for my team

IPv6 loopback

“

(soft swelling music) - [Instructor] In the IP version 4 world, we have a loop back address of 127.0.0.1, and it's used to test to make sure that the network interface card is reachable. Or sometimes a web developer, they'll run a web server on their local machine, and if they want to pull it up in a browser, they can point to 127.0.0.1. We put the same thing in the IPv6 world. It's a destination IPv6 address of ::1. That means that the first 127 bits, they're all zeros, and it just ends in a one. And we write that as ::1. That's our local loop back, also known as the local host address. Very similar to the 127.0.0.1 address we have in the IP version 4 world. And we're going to be able to use this to test to make sure the IP version 6 stack is operating on our machine. Or another example is a web developer might be running a web server locally. They could point to their loop back address to pull up the webpage that they're serving up from their local machine. And since a local loop…

Contents