I need to make the default route, from all routers, get to my firewall. If something fails in the ring I want it to fail over and still be able to reach the firewall.
Scenario: Using static default routes, router 4 has a primary of C and a secondary of D.
Router 5 has primary of E and secondary of D.
Router 6 fails.
Router 5 uses secondary route of D but router 4 still has primary of D. Traffic just bounces back and forth.
Is there another way to do default routes without using static?