@BrandonS wrote: I am working on the same setup right now and support advised me to make sure the MS120 you are using as a "breakout" switch between the provider side and the MX is assigned an internal IP statically to ensure it does NOT get a public IP. You don't really want or need your MS120 having a public IP for any reason. Yeh, this has caused me grief in the past. The problem with making sure the MS doesn't get an IP is that if it loses connectivity it will start to DHCP for an address on every port, and on any and every VLAN it can find. If your provider assigns addresses via DHCP, or if you have a limited amount of dynamic IP's available, there's a good chance the MS will grab one and use it to talk to the cloud.
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