I have the same issue, also I would like add that after I perform the phase 1 where I have both the links UP and perform the mutual redistribution, I noticed on my CORE# that when I do a show eigrp topology 192.168.1.0, It only shows the path from the primary link.
then I perform the phase 2 and 3, after that my CORE router was able to learn the routes on both links.
I'm not sure why it doesn't learn the routes from the backup link on phase 1 but it learns the route on phase 2 .
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: