Do MX do heartbeat or SLA to devices behind the MX?

[Drose]

Do MX do heartbeat or SLA to devices behind the MX? We understand that the MX does this on WAN, but we have a device behind the firewall that if it goes down needs to failover to our back up DataCenter. We are wondering if the MX device can do this. So, internet stays up but device behind the firewall goes down.

[Mloraditch · Accepted solution]

You can have a static route that is set to be only active when the next hop or host responds to the ping.

See Static Route Tracking here: https://documentation.meraki.com/MX/Networks_and_Routing/MX_Routing_Behavior

[GreenMan]

That sounds like MX warm spare to me -  you're trying to provide continued connectivity, should the MX fail..?

https://documentation.meraki.com/MX/Deployment_Guides/MX_Warm_Spare_-_High_Availability_Pair#Routed_...