Hi, I leave you links that could help you: External IP: https://community.meraki.com/t5/Security-SD-WAN/How-to-Block-external-IP-s-on-MX100/td-p/2644   MX Firewall Settings: https://documentation.meraki.com/MX/Firewall_and_Traffic_Shaping/MX_Firewall_Settings   Blocking Inbound Traffic on MX Security Appliances: https://documentation.meraki.com/MX/NAT_and_Port_Forwarding/Blocking_Inbound_Traffic_on_MX_Security_Appliances   I hope it helps you✌   ... View more

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  A bit about yourself & your work I have 9 years of experience providing solutions as a system administrator.   Your experience with Cisco Meraki A few months ago I enabled some Meraki MR84 - MR52 APs and for installing a MX100 Firewall   A fun fact about yourself I just bought a ticket for the Metallica worldwide tour Santiago 2020.    ... View more