Thank you for this, I finally understood that Loopbacks Interfaces are not physical but logical, I kept asking my Lecturer about these loopbacks but did not explained it well.

neat explanation - thank u very much!👍

This lookback example was quite easy and you did a great job. Can you produce more loopback videos with 3 routers, more ip address and each router pinging one another... You made it look so easy and my instructor makes it so complicated... Thanks

Why would you assign a /24 mask instead of a /32? Is there an advantage to doing it this way?

it will be interesting in knowing how and where to use it. Configuring it is pretty easy for people

Why i need to create this kind of interface? I dont know why because the configuration must be setted by console or other software máster to control the devices, if i dont need to access and managed it in remote ¿what is the function of this interface? Thank you

FYI: Before you explain how to config a loopback address, you might want to explain why we have the silly thing in the first place. Otherwise the whole process seems ridiculous.