Yes, we will have MX at each end and run Auto VPN, but my only issue was that if I use LAN port to terminate the MPLS ( in my case it is Metro Ethernet L2), then if circuit goes down at any site, MX does not fire alert. MX only alerts you via email if circuit is connected on WAN port. Hence I was not sure, but you have clarified that I can convert WAN into LAN port by asking support to allow NO-NAT feature.
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