Got a weird one here.
I've got an IP address in my subnet that is alive and responds to ping
requests, but I can't figure out what device actually live at that address. I've tried a couple of IP scanners that usually list hostnames and open ports / services, I've tried connecting to that address via http, https, telnet, SSH, but nothing responds and I don't have anything in DNS at that address.
We have no records or documentation of any device existing at this address and I'm at a bit of a loss because I need to expand my DHCP range, and this address is in the way.
Anyone know of a better way to interrogate that address to figure out what it is?
Thanks!
EDIT: I don't really see how this is a duplicate since that other question is from a completely different case [He has data from Advanced IP Scanner and I don't, he's using VMs, and I'm not] and that thread also has no answer. But it doesn't really matter because I found the offending device due to some great advice and good utilities in this thread. Thanks everyone!
ping -a [ip address]
? It will attempt to resolve the ip address to a hostname.arp -a
from a command line to find out the MAC address. Put the first three octets of the MAC address in Google or an OUI search site and it will tell you the manufacturer of the NIC. It's possible to spoof this info but it may give you a clue.