I'm trying to get one device to contact multiple devices in random subnets. To make sure this will always work I want to use NAT so that the customer in a random subnet does not clash with my own subnet. To make a connection to the customer I want to use VRF-Lite so they won't be able to see eachother.
I have configured this in GNS3, attached you will find a screenshot. I am able to get VRF working and I am able to get NAT working. But when I combine NAT with VRF it is not working.
You can see that I ping from the global routing and get NAT'ted into VRF1 which sends me to the customer. The customer replies to the address and uses a static route to get back to VRF1. Sadly VRF1 does not have a route back to the host in global routing.
To help other people with the same problem: The solution is not to go back from VRF1 to global routing but to exchange global routing for a management VRF. Routing between VRF's is possible with route leaking.
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