Got an interview for a job I'm underqualified for. Any tips from sr.network engineers on what to do?

Hey All,

As the title states I just wanted to know what others may have done in a similar position as mine.

I'm not severely underqualified but a lot of the requirements are based on a global scale and that is experience I have yet to acquire in real life. For example I will be handling the companies global network which requires BGP experience etc.

Now I will learn BGP as fast as possible of course, but most of my experience in that is limited to GNS3 configurations and checking out looking glasses. I know I must inspire confidence in them and be 100% honest but if any of you have hired someone who was unqualified what was the deciding factor?

I'm hungry and really want to prove to these guys that i'm capable.

preciate any responses!!!