MX60s set as passthrough inside MX84s not passing traffic
First let me start with the layout. 17 locations connected via Hub VPN and every site is essentially Modem > MX > Switches > Clients. Working on installing a new phone system that has redundancy however the PBX units can only talk to each other via layer 2.
So as a temporary solution I thought I could use an MX60 in passthrough in each location with a network of 10.1.99.0/29. I've set the static routes on each side so there is bidirectional communication, however I'm still unable to have ICMP packets traverse and be successful.
Is this something the appliances are capable of or am I just going barking mad ?