how to disable access my device via public ip address

[CAD]

Hello,

How to block access to my device using a public address from the Internet?

just i want access it form my internal network.

thanks in advice 

[ede_pfau · Accepted solution]

Go to System > Network > Interface, edit WAN1 (your ISP facing port) and deselect all options of "Administrative Access" (ping, http, https, FMG-Access, ...).

[CAD]

Thanks a lot