Resolve ip to mac address command line

Founder of The Back Room Tech and managing editor. He began blogging in and quit his job in to blog full-time. He has over 15 years of industry experience in IT and holds several technical certifications. Written by: Aseem Kishore Posted on: August 22nd, in: Featured Posts , How-To.

If you suspect the MAC address is a printer, first check out this site below to see if it matches a major manufacturer: The only thing is that you probably are not seeing the actual IP of a device due to NAT , if you're on separate networks. The above comment is wrong.

Windows: Command to Find MAC Address

There are some cases where ARP masquerading is configured and will reply, but it's quite rare to do that as it causes other problems. My main point is that you can always do a lookup.

And, if you're on the same network, you will always get what you were looking for. That's how the Ethernet protocol works.

U-D13 I have an IP address of a computer which I am currently away from ,in the question probably meant that the user is trying to find the MAC address of a computer which is not on the same network. Shiva "probably meant". I can be away from my colleagues computer, but we're on the same network.

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I can be working from home via VPN and be away from my actual work machine, yet we're still on the same network. I strongly believe your answer should be reworded to clearly indicate that one can only resolve IPs to MACs in a local network, but one can always do that. But that depends on the device in question being set to respond to PING requests.

This does not work for any host on the other side of a router. Any hosts on the other side of the router will show the routers MAC address.

I realize this is an old topic, but someone like myself may be looking for an answer. I became admin of a network with little over devices, which none of the cabling was mapped. I was told I was responsible for the cabling, so I began looking for a way other than toning out all the cables. I was fortunate to have Cisco switches and Windows Server Furthermore I could also get the computer name from DHCP and correlate that to which user was on the machine using PDQ inventory to see who was logged in to the machine.

Most of this of course depends on the devices being in use.

How to get MAC address via IP - Information Security Stack Exchange

I am interested in this thread, hopefully someone can help. There are 4 types of arp message: So, that being said, is it possible to manually send a rarp request? Sort of a arp based ping? There is arping, but we need rarping Of course, I understand that I can't arp outside my default gateway, but if there is a rarp request, how is it used inside the local network?

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Thanks to whatever guru can explain what we're missing. My instance where I found this useful was after updating the firmware on a switch remotely via TFTP, the IP of the switch would change making pinging redundant, obviously. Trying a network scan over Spiceworks or rescanning the single device would not update the IP and I needed an alternate way to find it.

This method worked perfectly. Thank you. Hopefully this helps those trying to understand the purpose of this practice and how it was in-fact useful. I understand the issues in attempting to use a MAC address to locate a device from outside of its local network.

How to Use an IP Address to Find a MAC Address

The hardware configuration is: The router is connected to Comcast with a Motorola SB modem. Comcast assigns a system wide dynamic IP. There is no static IP. On initial setup, a WiFi connection is first established between the thermostat and the router.

It is then possible to read or set thermostat values using Total Connect Web pages. Does anyone understand how this works with Total Connect?

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This post was extremely helpful, thanks itdownsouth: I used show interface to find MAC addresses on our switches reason for this is poor network documentation and mis-labeled switchports and wall jacks Tedious, but found 5 or 6 now seeing hexadecimal thoughts now though By the way, the reason this is working great for me is the lack of routers -- all switches, so if you have only one subnet like we do, this will do -- otherwise, you will probably need to login to the router or switch on the other side of the router to find MAC address tables on the other networks.

You may not be able to see them all on the local host, as far as arp -a on the local host, but looking up the arp or hosts tables on switches and routers could be a possible solution for those with multiple subnets. Use SuperScan to do a bulk ping of the entire network range.