You try to configure MPLS VPN VRF Selection based on a source IP address on an interface that has VRF configured, but you receive an error.
Which action must you take to correct the problem?
Click on the arrows to vote for the correct answer
A. B. C. D.C.
https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/vrfselec.htmlTo correctly configure MPLS VPN VRF selection based on a source IP address, it is important to understand how Virtual Routing and Forwarding (VRF) works. VRF is a technology used to create multiple instances of a routing table on a single physical device, allowing traffic to be separated into different virtual networks.
When configuring MPLS VPN VRF selection based on a source IP address, the goal is to assign a specific VRF to incoming traffic based on the source IP address of the traffic. This is done using a feature called VRF Selection.
If you receive an error while trying to configure VRF Selection based on a source IP address on an interface that has VRF configured, there are a few actions you can take to correct the problem:
A. Change the source IP address: This is not a valid solution as it does not address the root cause of the problem. Changing the source IP address may not even be possible, as it may be controlled by the application or the remote endpoint.
B. Add the IP address to the VRF table: This is not a valid solution as it also does not address the root cause of the problem. Adding the IP address to the VRF table may not even be necessary, as the VRF Selection feature is designed to automatically assign a VRF based on the source IP address.
C. Remove the VRF from the interface: This is not a valid solution as it would remove the VRF completely from the interface, which would likely break any existing VPN connections that rely on the VRF.
D. Configure static routes for the VR: This is the correct action to take to correct the problem. When VRF Selection based on a source IP address is configured, the router needs to know which VRF to assign to incoming traffic. This can be done using static routes that map the source IP address to a specific VRF. By configuring static routes for the VR, you can ensure that incoming traffic is assigned to the correct VRF based on its source IP address.
In summary, the correct action to take to correct the problem of not being able to configure MPLS VPN VRF Selection based on a source IP address on an interface that has VRF configured is to configure static routes for the VR.