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What I am talking about if doing a standard ping sweep, and then grabbing the arp cache of the remote routers. But again ARP pings / requests dont move across layer 3 devices so only work on local subnets.
#Angry ip scanner not working free#
So if you want to check if an IP address really is free on a network an arp ping is much more reliable than icmp. IF some one patches in a device to your network that has a firewall turned on then it will not replay to pings, but it will reply to arp requests. but that netgear, what the hell is that doing on my network, has some one plugged in a hub?įor a network engineer hardware address are what its all about, a IP address is just an alias, its the mac address that hold information.Īnd i was not suggesting layer 2 scanning there are arp scanners out there for that, which again are very useful for a network engineer as a ping scan does not tell you whats on the network. Now i know samsung thin clients don't respond with OS info but I have a list of all the thin client mac address so I can check this out.
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IP address x.x.x.x is a Samsung device, and IP address y.y.y.y is a netgear device. If you can get back mac address you can say. So you might get that its a windows box and its host name etc.īut some will just return an IP. So if you are scanning a remote sub net using angry IP scanner it will show you all the live ip address, and if the OS supports it or using netbios you can pull back some more info. Because mac address tells you device type.