Public IP configuration for a LAN device

[Mulindwa]

How do I configure a non NATTED public IP on a LAN connected device.

[ww]

This doc should cover nat exceptions 

https://documentation.meraki.com/MX/Networks_and_Routing/NAT_Exceptions-No_NAT_on_MX_Security_Applia...

[GreenMan]

You might have to be a little clearer on exactly what it is you're trying to achieve, but it's possible one of these tools might also help:   https://documentation.meraki.com/MX/NAT_and_Port_Forwarding/Port_Forwarding_and_NAT_Rules_on_the_MX