How VRFs Work (VRF Lite) | VRFs Part 1

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How VRFs Work (VRF Lite) | VRFs Part 1

VRFs, or Virtual Routing and Forwarding, are virtual routing tables. They enable separation of one part of the network from another.

There could be many reasons to do this. It could be for security, to separate the inside network from the DMZ. Or, it could be to separate BU's, or separate customers from each other.

This video explains VRF basics, what they are used for, when they are used, and how they work.



This includes two labs you can follow along with.

The first lab starts at the beginning and shows basic VRF configuration to separate two customers.

The second lab shows how you can use VRFs to force traffic through a firewall for security purposes.

You can download the labs, and practice on your own if you want (Patreon).
https://networkdirection.net/VRF+Lab+1



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



For more information, have a look at https://networkdirection.net/VRF+Lite



https://www.youtube.com/c/networkdirection

https://twitter.com/NetwrkDirection

https://www.patreon.com/NetworkDirection
Category
Routers and Switches
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