Leak Routes Between Routing Tables | VRF's Part 4

We've been very successful in keeping customer routes separate with VRF's. We've even extended this across the core using route-targets, route-distinguishers, and MPLS.

What would happen now if we wanted to share some of our routes with our customers?

This is called route leaking, which we can achieve once again with MP-BGP.

There are a few challenges along the way. What if we want to share all routes in a VRF? What if we want to be selective? And how do we prevent customers from advertising rogue routes?


In this video, we'll see how to configure route leaking and export maps to to share routes between VRFs.



This includes a lab you can follow along with.

You can download the labs, and practice on your own if you want (Patreon).
https://networkdirection.net/VRF+Lab+4




Part 1: VRF Lite - The Fundamentals of how VRF's work. This covers route separation, why you need it, and how it's configured
https://youtu.be/D0IT6ZKY3tg

Part 2: Dynamic Routing - Taking it a step further, we see how to add OSPF, EIGRP, and BGP routing, all while keeping it VRF-aware
https://youtu.be/7RtoNTK-mgE

Part 3: Route Targets - VRF's are local to each router. But, we can use route-targets and MP-BGP to share routes between VRF's on different routers. The ed result? VRF's are spanned across your network!
https://youtu.be/dW8JjcINgDg

Part 4: Route Leaking - VRF's keep routes separate, but what if you have some important services to share? How do you share the routes then? With Route Leaking!
https://youtu.be/GeIfsVPs4o0



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