{"id":2215,"date":"2010-08-22T05:26:01","date_gmt":"2010-08-22T09:26:01","guid":{"rendered":"https:\/\/thebackroomtech.wordpress.com\/?p=2215"},"modified":"2020-01-06T00:16:29","modified_gmt":"2020-01-06T05:16:29","slug":"determine-ip-address-from-a-mac-address","status":"publish","type":"post","link":"https:\/\/thebackroomtech.com\/determine-ip-address-from-a-mac-address\/","title":{"rendered":"Determine IP Address From a MAC Address"},"content":{"rendered":"

Ever had to reverse lookup an IP address? Kind of like looking up a home address using a phone number? If you\u2019re in IT, you might come across the occasional situation where you have a MAC address, but need to figure out what the IP address is.<\/p>\n

There are a couple of ways you can go about doing this. Firstly, it\u2019s important to understand that the MAC address might not be the address for a PC. It could also be the MAC address for a printer or some other type of device on the network.<\/p>\n

If you suspect the MAC address is a printer, first check out this site below to see if it matches a major manufacturer:<\/p>\n

http:\/\/www.curreedy.com\/stu\/nic\/<\/a><\/p>\n

You can also find out if the MAC address is from a switch or other networking device from HP, CISCO, etc. If you\u2019re sure the MAC address is a computer, then try the methods below to determine the IP address.<\/p>\n

Method 1 \u2013 DHCP Server<\/strong><\/h3>\n

The simplest way to get an IP address from a MAC address is to check out the DHCP server, if possible. Whether you are in a corporate environment or at home, each computer is being assigned an IP address from a DHCP server (unless it\u2019s a static network, which is rare).<\/p>\n

You can either go into the DHCP console on Windows Server 2003\/2008 or you can log into your wireless router at home, if that is what you are using.<\/p>\n

\"find<\/a><\/p><\/blockquote>\n

Simply go to Address Leases under the Scope and you can view both the client IP address and the Unique ID, which is the MAC address.<\/p>\n

If you have a wireless router at home, it will vary depending on the brand (Belkin, Netgear, LinkSys, etc). But basically, there should be a section to view all the current devices connected to the wireless network.<\/p>\n

On my AT&T U-Verse box, it\u2019s right on the home page and I simply click on Device Details to view the MAC Address.<\/p>\n

\"get<\/a><\/p><\/blockquote>\n

Method 2 \u2013 Ping Broadcast Address<\/strong><\/h3>\n

The second way to do this if you can\u2019t get access to your DHCP server is to use a useful command in Windows called ARP (Address Resolution Protocol).<\/p>\n

Basically, you ping the broadcast address on your network from any Windows machine and then check out the ARP table afterwards.<\/p>\n

If you subnet is 192.168.1.X with a mask of 255.255.255.0, then you would ping 192.168.1.255. When you ping, you will get a Request Timed Out<\/strong> all four times, but don\u2019t worry.<\/p>\n

\"ping<\/a><\/p><\/blockquote>\n

Next, type in the following command<\/p>\n

arp \u2013a<\/strong><\/p><\/blockquote>\n

You will now get a list of all the connected devices on your network along with their physical addresses! Pretty nifty trick.<\/p>\n

\"arp<\/a><\/p>\n

Method 3 \u2013 Free Tools<\/strong><\/h3>\n

Lastly, you can use a free program to get a IP address from a MAC address. It\u2019s called CC Get MAC Address and it can be downloaded here:<\/p>\n

http:\/\/www.youngzsoft.net\/cc-get-mac-address\/<\/a><\/p>\n

Before you can use it, however, you need to scan all the IP addresses in your subnet in order for it to work. The program itself has a auto scan feature that takes in a IP range.<\/p>\n

You can also use a free program called Advanced IP Scanner, which will do the same thing and is a program totally dedicated to scanning IP addresses:<\/p>\n

http:\/\/www.radmin.com\/products\/utilities\/ipscanner.php<\/a><\/p>\n

You can also use the IP Scanner and then simply run the arp \u2013a command to get a list of IP\/MAC Addresses.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ever had to reverse lookup an IP address? Kind of like looking up a home address using a phone number? If you\u2019re in IT, you might come across the occasional […]<\/p>\n","protected":false},"author":5,"featured_media":2208,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"updated_on":"","footnotes":""},"categories":[26],"tags":[],"class_list":{"0":"post-2215","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-howto"},"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t