I'm blocking on a point and it would be nice if someone could help me. Here is the problem :
I have a standard infrastructure who consist of a core switch, a distributor, and an access switch.
In this case, (for segmentation reason,) the access switch is L3, so the uplink is a point-to-point L3, no trunk.
The Infrastructure is configured as well and work fine, of course, i don't have any VRF configured. Arrived at the core switch, a default static route send all the traffic to my Firewall., the FW then make his job.
Now, i'm trying to add a VRF to segment risky user from the rest of infrastructure, so from my L3 access switch, i made a Tunnel to my core switch (mostly to avoid a trunk from access to core). The tunnel is attached by Loopback interfaces, and the tunnel itself belong to the VRF, so the traffic between my core switch and my access switch is reachable trough the tunnel in the right VRF. (i created dedicated eigrp instances)
I'm blocking on the last point, export and import routes from my VRF to the "default" VRF (in fact, no VRF, the common routing table)
I don't understand very well the possibility to export or import routes in that case, i want to put the traffic at the core switch from my VRF to the default common route, and then, i want to catch the returning traffic to send trough my VRF...