I wonder how network devices like mikrotik, unify are automatically detected on the network?

Question

network hardware

I'm wondering - how and with the help of what protocols are devices automatically detected on the network without using an ip address?
Thanks in advance

Answer 1

https://ru.m.wikipedia.org/wiki/Zeroconf

Answer 2

mikrotik anonizes itself on a certain port and broadcasts

Answer 3

LLDP