I am designing Meraki solution for several countries which will be under one organization. Each of this countries will have Several MXs and Zs which will form autovpn with Hubs in routed mode located in each country. Am anticipating same subnet problem Inter-country for both Production networks and spokes Though inter-country communication is not required. Am aware Meraki Hubs in same organization will peer automatically. In regard to this I have below questions.
1. Assume I am not doing Site-to-site VPN Translation . How will the traffic flow in country A production hub A going to Spoke A (192.168.31.0/24) which is clashing with Country B Spoke B (192.168.31.0/24) network (Being advertised to Hub A by Hub B) look like? Does meraki have metrics for autovpn routes to make the longer path through an extra hop(HubB) less preferred ?
2. Is it possible for Meraki support to disable Hub to Hub auto peering within the same organization.?
3. Can site to site firewall rules be used to block autovpn traffic to and from the other countries?