what is the mac address corresponding to the ip address of 172.16.202.2?

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How to Find an IP Address using a MAC Address

In this tutorial we testify you how to use mutual and freely bachelor tools and methods to find an IP accost using a MAC accost.

UPDATED: December 2, 2021

It is common for network administrators and figurer users to PING a device to detect the IP address of a website, a host, or even a hostname. Simply, what if the only information you had was a MAC address and yous needed to detect out to whom it belonged? Perhaps yous want to dig for more information based on a MAC address that has been listed in your router or you demand to know who has been accessing your local network.

Well, finding an IP address from a MAC address is the topic nosotros will be looking at in this article.

IP accost vs. MAC address

Allow's delve correct in, take a wait at these two terms, and discuss what they are and why we demand them at all.

Define IP address

An Internet Protocol or IP address is a numerical label or address assigned to each device that is connected to a calculator network that uses IP (Internet Protocol) for communication.

An IP accost serves two main purposes: for host or network interface identification and location addressing of a connected device. This address can be assigned manually by configuring a device to save a Static IP Address, or automatically by a DHCP server (Dynamic Host Configuration Protocol server) which assigns a Dynamic IP Address.

An IP address tin can be in the format of xxx.xxx.thirty.xxx (IP V4) or abcd:efgh:ijkl:mnop:qrst:uvwx:yzab:cdef (IP V6). It is also ever unique – no 2 devices on the same subnet can accept the same IP accost. If they do, it will cause an IP accost conflict.

Ascertain MAC address

A Media Access Command or MAC address is also a uniquely assigned accost. Similar an IP address, a MAC address also serves as an identifier for each device. But, in this case, the address is assigned to the hardware that is used to make the connection possible. In the case of a desktop or laptop estimator, this hardware is the Network Interface Card (NIC).

MAC addresses are written in the "AA:BB:CC:DD:DD:FF" format. The showtime 3 numbers (i.e. AA:BB:CC) are used to identify a NIC's manufacturer and are known as an Organizational Unique Identifier (OUI). The OUI is followed by a unique identifier since here likewise there tin can be no ii devices with the aforementioned MAC address.

From the prototype above, nosotros can see that a MAC address is a hexadecimal number. The NIC converts this hexadecimal number of the MAC accost into binary numbers before processing and using it on the network.

Therefore, we can now say that a MAC address is a unique hardware identification number that is assigned to a NIC, whereas an IP address is an address that helps you lot place a network connection that leads to the NIC, and thence, the host machine.

Finally, we need to remember that connected devices tin can each have two IP addresses:

A Private or Internal IP address: this is to exist used on a Local Expanse Network (LAN) and for connectivity and messaging within an internal network. The ranges are best explained in the tabular array below:

Prefix	IP From…	IP To…	Full No. of Addresses
10.0.0.0/8	ten.0.0.0	10.255.255.255	16,777,216
172.16.0.0/12	172.16.0.0	172.31.255.255	1,048,576
192.168.0.0/16	192.168.0.0	192.168.255.255	65,536

These addresses (and hence the devices) are not globally reachable, and cannot exist searched or accessed from across the LAN. Also, they are not necessarily unique identifiers – a private IP can exist used in 2 different network subnets.

A Public or External IP address: this accost is used to connect to the Internet – for a global online presence.

The IP range for these addresses is from 0.0.0.0 to 255.255.255.255 – the whole range (with the exception of private IP addresses and a few unusable or reserved IPs, of class).

Devices and hosts with public or external IPs are globally accessible and can be reached from across the network they are on. The addresses are unique across the Internet and tin can fifty-fifty be used to determine the location of a device considering each land is assigned a range of addresses by the Internet Assigned Numbers Authority (IANA) and its regional subsidiary agencies that include AFRINIC (Africa), ARIN (USA, Canada, and some Caribbean area nations), APNIC (Far East and Australia), LACNIC (United mexican states, Central America, and S America), and RIPE NCC (Europe, Centre Eastward, and Central Asia). This makes it easy to find out where a user is connecting from.

Ok; only why exercise nosotros need both an IP and a MAC address?

This is a valid question considering the fact that each address uniquely identifies a host or device. But, accept into consideration the fact that although TCP/IP – which uses the IP protocol – remains the most popular communication (in fact, information technology can exist said to be the most dominant ane since the Internet uses information technology), it is not the But send protocol.

For case, IPX/SPX (Internetwork Packet Commutation/Sequenced Packet Exchange) addresses each computer using the MAC address (and some additional data). This makes it necessary for an alternative device addressing system.

How to discover your own IP and MAC addresses

Nosotros will now wait at how you tin can find the IP and MAC addresses of your machine or some other one that is connected to the network.

Windows systems

1. Go to START ->
2. Type "CMD" or "Control" to get to the Command Prompt application.
3. When the Command Prompt shortcut appears, correct-click on it and select "Run as ambassador".

4. In the control prompt CLI, blazon "IPConfig/all" and you lot should see something similar to:

In this screenshot, the Physical Address is the MAC address 70-71-BC-69-03-EB.

Incidentally, the IP addresses (in two IP protocol formats) are: 10.0.110.219 (IPv4) and fe80::a034:180d:4963:369a%10 (IPv6).

Linux systems

In that location are several ways of displaying your IP address from your Linux CLI. The 3 best ways are using the commands:

1. ip address
2. ifconfig –a
3. hostname –i

Every bit can be seen in the image in a higher place, the three commands display different outputs. The start command – ip address – is the most informative one. What's more, it tin can also be used to get further, detailed information past throwing in some arguments. Just take a await at the aid to get an idea of the parameters you can utilize:

Calculation these arguments to the ip command results in details and grants access command (as well equally configuration capabilities) of routes, neighboring devices, and even the network, for example.

Note: the screenshot was taken from an emulator (hence the IP address 127.0.0.1 – the default accost for IPv4 loopback traffic) and your output will likely vary from the screenshot.

macOS systems

On a macOS device:

1. Open System Preferences – past clicking the Apple logo dropdown card.
2. Become to Cyberspace & Wireless.
3. Click on
4. Choose the connection device – Wi-Fi or Ethernet – that is dark-green (indicating a live connection).
5. When selected, information technology should say Connected and show you lot the IP accost on the right side.

Paradigm source: OSXDaily.

A footling lower, and to the correct, you volition be able to see the Options push. Click on it and y'all will exist able to see more than information, including the device'south MAC address.

If you're more of a technical user, you tin opt to run Final to find out your (local) IP address using the command "ipconfig getifaddr en0".

Prototype source: Tridev Reckoner.

Finally, we shouldn't forget that the Linux commands also work on macOS:

Note: hither as well, we have used an emulator and the results may look different on your screen.

How to find MAC addresses on a network

Side by side, let us see how nosotros can detect the MAC addresses of the devices on a segment of a network. The protocol nosotros volition be using is the Address Resolution Protocol or ARP.

This protocol helps routers by translating IP addresses into MAC addresses (or vice versa) to make it easy for information packets to be delivered to the right host. The result is displayed in a table that allows y'all to easily identify which IP address belongs to what MAC accost.

From your command line – in any operating organisation – you tin can utilize the "arp –a" control to list the MAC addresses in your network segment. Hither'due south what it will wait like on a Windows machine:

To see what the arp command does you can run the control "arp /?" to invoke the help feature.

Moving on to a Linux emulator, it would look like this:

And, finally, on a macOS CLI the result would look similar this:

Remember, although nosotros take just seen that nosotros tin can discover the MAC addresses using the arp command, as network users, nosotros can just see the addresses of the devices that are on the aforementioned subnet we are on. Administrators, on the other manus, can take the detailed data of the whole network at their disposal.

Windows'Agile Directory (AD), for example, gives you lot the whole network'due south MAC accost data as Unique IDs in its DHCP list. This list also provides the respective IP addresses.

Image source: The Backroom Tech

Other Methods used to find the IP accost using Mac Address

Ok; nosotros take spent fourth dimension looking into how you lot can observe the IP address and MAC addresses using commands and, in some instances, features in authoritative tools like Microsoft's AD. The disadvantages here are that:

• Manually typing in the CLI commands is too tedious a task to perform in larger networks where conflicts and bug occur besides oft.
• This is also why round-the-clock monitoring for rogue devices would exist out of the question – (unless of form some technical know-how was caused to run scripts that automated the scanning tasks).
• Using enterprise tools similar Microsoft's Advertisement could exist out of the reach of businesses and network owners with smaller budgets; and likewise, it wouldn't make sense for them to invest in them at all equally the ROI wouldn't exist worth it.

The best IP address to MAC address (or vice versa) resolution tools would, therefore, exist free network monitoring tools that tin perform these tasks without the need for human intervention.

Let'southward have a look at four such tools.

i. Spiceworks IP Scanner

For companies that accept a mixed operating system topology, information technology makes sense to use Spiceworks' IP Scanner considering it can scan for devices running Windows, Linux, or OSX. It is also efficient because, as a cloud tool that uses a tiny agent to do the scanning, it doesn't impact your network'south functioning or interfere with the devices' execution equally they are being queried.

Some of import features from IP Scanner include:

• The tool lists device details that include name, manufacturer, IP address, operating system, MAC address, and even spot any open ports.
• Information technology scans your local network and returns a sortable list of the devices it discovers.
• Admins can see the last fourth dimension a device was polled to find out if it is currently up or downwardly.
• They can also see which devices operate using legacy operating systems and use the list for upgrade campaigns.
• In fact, they can even spot open ports that put the devices at risk.

This is a handy suite of tools on its own, but there are many more solutions from Spiceworks that information technology tin integrate with for fifty-fifty more effectiveness in network administration.

Pros:

• The agent can exist installed on Windows, Linux, or Mac
• Platonic tool for longer-term monitoring
• Great interface makes it piece of cake to view all ports, services, and their current state

Cons:

• Won't piece of work offline, but great for unproblematic web-based monitoring

You tin get-go using SpiceWorks IP Scanner by signing up for Costless.

2. Eusing Gratuitous IP Scanner

This tool is for admins who choose to simply utilise Windows computers. It is a tiny (433 KB) just a not bad tool to quickly run and scan all the devices that are on a network.

Apart from being tiny, and having an nearly-zero digital footprint, Eusing's Free IP Scanner gives admins the exact information they demand and displays information technology in a no-nonsense, detailed table. The information includes:

• A report showing all devices that are connected to the network, with their IP addresses, MAC addresses, user names, and any open up ports.
• The ability to limit scans by using IP address limits.
• It uses multi-thread scanning which allows it to scan hundreds of computers on large networks in mere seconds.
• Alternatively, admins can upload IP addresses as text-file lists for customized scanning.
• Scan results tin also exist exported to text files for safekeeping or later access.

Users of this free IP scanner volition appreciate the fact that it is a tool that was created for the precise purpose information technology was named after and is easy to employ and excerpt information from.

Pros:

• Lightweight awarding – not bad for legacy machines
• Provides simple data on address ranges, hostnames, ports, and user
• Allows users to limit their scanning range

Cons:

• Better suited for short tests, not applicable for long term monitoring

Download your copy of Eusing IP Scanner for Gratuitous.

3. ManageEngine OpUtils

ManageEngine'southward OpUtils comes to united states of america from Zoho, a company that is well-known for its online office and business software suites. With OpUtils too, information technology has connected to uphold this tradition and has delivered a high-quality tool that offers superior operation.

OpUtils is an "IP address and switch port management" tool that is easy to install and use. At that place are likewise Windows and Linux versions to download and they besides come with the database options for PostgreSQL or Microsoft SQL Server in the back.

This is a tool with a browser interface that makes it piece of cake to configure and run without burdening a network or hogging other resource.

Amid its many other features, OpUtils offers:

• Browse your network (or a subnet) and list IP and MAC addresses – find out which ones you've used and the transient ones.
• Admins can use this tool to resolve – and pair – DNS and MAC addresses for a range of IP addresses.
• Information technology can be used to ban "rogue" IP (or MAC) addresses – which tin exist uploaded via txt file lists, for instance.
• In that location are sets of CISCO and SNMP tools included to help with network administration, configuration, and diagnostics.
• Access to ping, traceroute, proxy ping, and SNMP ping – network command tools to check if devices are online and, if they are, to collect data similar DNS names, locations, and system descriptions.

With this tool in paw, administrators tin not only resolve (back and forth) between their MAC and IP addresses but also take full control of their network and connected devices. Needless to say, this is a tool for businesses and administrators of larger networks.

Pros:

• Supports IP management and physical switch port monitoring
• Offers congenital-in troubleshooting tools to help
• Supports CISCO and SNMP tools to help configure, administer and diagnose bug
• Better suited for sysadmin

Cons:

• Offers many advanced features and options, not suited for small home networks

You lot can download your Total Gratis version of ManageEngine OpUtils here (the tool reverts to the costless version after thirty days).

What other information tin can you get from a MAC address?

Now, some might still wonder why they would need to resolve a MAC address into an IP address. Well, apart from finding the IP accost of a device, at that place is more information that can be extracted from a MAC address, including:

• Network – one time the IP address has been identified, it is piece of cake to determine the network it is connected to.
• Hostname – using the ping control will testify the device'southward proper name and more detailed descriptive information.
• Manufacturer – most NICs are "tagged" past the companies that make them; this information tin be used to build a clearer contour of the connected device.

Finally, it is important to know that a MAC address cannot be propagated beyond your local area network. In fact, the router uses the MAC addresses to easily identify the devices that are connected within the local network.

This ways that if y'all can come across a MAC address listed in the router (by using the arp control, for example) and you realize it doesn't belong to 1 of your own devices, then there is a adventure you might have a rouge device connected directly to your network!

Alternatively, you tin reverse this theory and consider the fact that, since your MAC accost is registered in a router (that as well maps it to an IP address), the information can be used to trace your online activity. This tin be avoided with the help of a VPN or proxy server, especially when you demand to ensure your privacy.

Well, that'southward that. Allow u.s.a. know what you think about the relationship betwixt your IP and MAC addresses by leaving usa a annotate below.

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Source: https://www.comparitech.com/net-admin/how-to-find-an-ip-address-using-a-mac-address/

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