What looking for isn't in there.   Will try and explain again what looking for   MX1 - 1 ISP Connection    Public_IP_Block_A eg 40.40.40.40/31 MX2 - 1 ISP Connection    Public_IP_Block_B eg 50.50.50.50/31   The ISP Connections are separate WAN Connections so no external switch and VRRP etc on the WAN Side and the Connection terminated on each MX Appliance.   MX2 is a Warm Standby for MX1   Then use the SDWAN functionality to build VPN from the MX to a VPN Concentrator.   The VPN would initially be seen from 40.40.40.40 as that is ISP1 However if there was a failover to the Warm Standby then would be seen from 50.50.50.50 as would now be on the ISP2.   Solved: Dual redundant mx devices but with separate ISP on each WAN 1 port - The Meraki Community   Was a similar topology however was not doing any of the SD-WAN functionality or VPN.     I know from other vendors that can do a straight firewall topology like this however the VPN doesn't work in that topology so don't want to presume that this would work with the VPN properly either in Meraki. ... View more