I want to ask regarding same subnet advertising in AutoVPN.
Here is the background, MX250 deployed in both DC & DR acting as Hub with NAT Mode. Both MX will be advertising subnet in AWS (172.16.1.0/24) so Branch will have failover route to AWS in case DC is down.
Recently, i've read that same subnet advertising only work in Passthrough Mode, so based on my case do i need to change the deployment model to Passthrough ? or is there some way to make it work even in NAT Mode ?
Topology is attached. This is still my rough plan, so no MX is deployed yet.
If they are operating in warm spare mode, then they will look like a single site to the reset of the AutoVPN network. It the primary site goes down the warm spare will take over as active. The remaining AutoVPN sites wont see a change routing wise.