how do i make my server apear on lan list

[lucasdaweb96]

so i have radmin vpn installed in my pc so that makes that i get to host lan worlds to anybody with it installed enter.
and today a saw a server being shown there in the lan list and i want to know how could i make my apear too.
the server i was talking about:
https://prnt.sc/20eb9zx

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