Replacing existing FW wirh MX105. Inherited a 100% remote project that has Meraki devices already connected (all still on default vlan 1), but MX has same public IP as legacy FW, and already has the same L3 vlan SVIs & DHCP configured. How can I test connectivity to Active Directory, etc with this setup? I'd prefer to readdress the Meraki gear (and remove the SVIs), but I'm afraid of losing connectivity to the Meraki devices. There's also an MS switch, that's connected to a legacy Catalyst 3750. Is there any way to run bot FWs parallel, and still be able to reach some of the internal resources?
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