Thank you for the guidance. There is only one Meraki L2 switch. I have a concern regarding the sub-interface configuration on the Cisco Firepower and its compatibility with the Meraki switch. 1>In this case, Physical interface is VLAN1. Do I still need to configure VLAN1 as sub interface or can I still use VLAN1 as a physical interface? 2>Will the sub-interfaces on Cisco Firepower for VLAN10, and VLAN20 work correctly with the Meraki MS L2 switch? Specifically, will inter-VLAN routing function properly in this setup? I'm looking forward to hearing from you soon. Thank you for your assistance
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