What is a front door VRF?

Idea here is to have underlay network running in a VRF, often called FVRF or Front Door VRF. By using Front Door VRF we are isolating transport network, usually Internet facing, and this allows us to configure default route that won’t interfere with routing in our global table.

What is VRF forwarding Cisco?

VRF (Virtual Routing and Forwarding) is a technology that allows having more than one routing table on a single router. The concept of VRFs on routers is similar to VLANs on switches. VRFs are typically used in combination with MPLS VPNs. VRFs without MPLS is called VRF lite.

What is tunnel VRF?

The tunnel vrf instructs the router to use the specified VRFs routing table for the tunnel source and destination IP addresses. This can be used in secure environments where VRF A has outbound access and VRF B does not.

What is FVRF Cisco?

fvrf : Front-door VRF (or outside VRF), the VRF that contain the encrypted traffic. global VRF: the routing instance that is used if no specific VRF is defined. If no VRF-aware config is used, everything is done in the global VRF and all interfaces are in the global VRF.

What does VRF stand for Cisco?

Virtual routing and forwarding
Virtual routing and forwarding (VRF) is a technology included in Internet Protocol (IP) network routers that enables multiple instances of a routing table to exist in a virtual router and work simultaneously.

What type of protocol is GRE?

Generic Routing Encapsulation (GRE) is a tunneling protocol developed by Cisco Systems that can encapsulate a wide variety of network layer protocols inside virtual point-to-point links or point-to-multipoint links over an Internet Protocol network.

What is the purpose for creating VRFS on a router?

VRF provides a way for you to configure multiple routing instances on your router. This is beneficial if you have a need to keep customer traffic and routing separate and you want to utilize the same hardware.

What is FVRF and IVRF?

Terminology. ivrf : Inside VRF, the VRF that contains the clear-text traffic (before encryption for outbound flows and after decryption for inbound flows) fvrf : Front-door VRF (or outside VRF), the VRF that contain the encrypted traffic. global VRF: the routing instance that is used if no specific VRF is defined.