Being able to incorporate any computers IP address in to a program loaded on to that computer

[Geoff S]

Hi all, Newby to coding. I would like to be able to write a program that takes the IP address of the host computer ( imports it in to the progrram ) and compares it to a stored IP address. I researched and found the address is in /etc/hosts, ?? Many protocols, couldnt see it.
Any thoughts please.

 

[FResher]

Hi !


check by the ARP protocol.
ARP retrieves all IP in the nearhood

ARP refresh every 30 seconds by default.