Hello.
INTENT: Implement a solution that, when a pre-configured vendor box fails inside the LAN, the adjacent device will identify this failure, and then will remove an EIGRP distributed static route to a public IP-address that recursively points to this private IP-address of this dead box.
I understand this can be done with IPsec tunnel technology-- "dead peer detection". My research does not reveal that this DPD technology exists for simple links, especially for my situation where I have no config access to the vendor box.
QUESTION: What is the best solution to accomplish above intent?
Thank you.