DriveDx will protect you from data loss and downtime
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With DriveDx you need not worry about losing your important data, music, and photographs.
You can know before your drive is going to fail, because DriveDx tracks more indicators of impending failure than any other product on the market for both SSDs and HDDs.
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Drive Dashboard
Early Warning System
You will have more chances to save your critical data before any data loss actually occurs.
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Drive Health Indicators
Modern SSDs and HDDs support
When evaluating the state of various drives, DriveDx can use different heuristic algorithms depending on the drive model and even its firmware version.
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Drive Self-tests
Drive Self-tests
Will help to quickly identify if the drive is faulty.
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Drive Self-test in progress
Automatic Email Reports
User does not need to have physical access to a specific computer all the time, which is especially useful for all kinds of server rooms, data centers, etc.
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DriveDx Email Report Preferences
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DriveDx is recommended by
Here's a DriveDx triumph. DriveDx showed my just out of AppleCare iMac with two pre-fail conditions for the hard drive. Made appointment and took it to Genius Bar yesterday. Tech looked at DriveDx and was very impressed. Even though out of warranty - they replaced the drive without question.
God knows how many dollars and troubles DriveDx saved me since I had several vital FinalCut projects on it!
I just registered my copy of DriveDx. I want to say thanks for saving me a whole lot of time, expense, and aggravation. I’m trying to keep my 2011 MPB running for as long as I can….or at least until Apple gets their act together and starts making 17” laptops again. My Samsung 840 EVO SSD is aging, and my laptop gets very heavy work, managing networks, and saving the world.
Lately, the system has been hanging under heavy load. On a whim, I loaded up DriveDx, which told me there were CRC errors on the SATA cable. A $13 cable later, and I am no longer able to crash the system no matter how hard I try. Drive Dx is well worth the $19.99! Thanks a million!
As a photographer, I’m always concerned about drive failure because I know it will happen to all of my drives. What I don’t know is when.DriveDx exposes low-level information of internal sensors, pre-fail indicators and lifetime accumulators of information that have allowed me to anticipate problems before they affect my system. As a result, I sent external drive back to LaCie for exchange under warranty due to anticipated drive failure. This is one of the best investments you can make in your system. I recommend it highly.
External backup disk will have been gone soon. It's time for NAS server. Thanks for letting me know @BinaryFruit!
A couple of days ago, DriveDx warned me (pre-failing) for one of my external drives. I don't use it any more for backup. After DriveDx warning, drive behaved abnormally, I heard loud clicking noises and I got warnings from OS X as the drive unmounted abnormally while it was not the case.
Thanks to DriveDx. Best in its class. Excellent tech support.
DriveDx app warned of pending drive failure before it happened. Nice!!! @binaryfruit
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Shout out to @BinaryFruit for offering a great product and great service over and beyond what they advertise! DriveDX is an awesome app!
Cheaper and better than it's main OS X competitors. DriveDx has a better GUI layout, clearer presentation of data, and explanations of each of the SMART attributes. Beautiful.
Absolute Must for the OS 'Toolkit'! I was having some serious issues with an SSD hybrid drive on my macbook pro, and well since seagate doesn't support mac, their 'seatools' software was useless (and required) for getting a proper exchange. That one event way more than paid for the price of the software. THIS software generated a report that was acceptable for me to get my exchange, and before the drive died completely. Got my replacement drive and I will most certainly never go back to not having it installed.
Just in Time! I downloaded DriveDx and discovered that the second HDD in my MacbookPro (in the superdive location) was having 'failing warnings', although DiskUtility said the drive was OK. So I decided that I had to replace it. I did that and enclosed the failing disk in an external enclosure to use it some more. A week later I began to have serious issues with the failing disk and ditched it. I am very happy with DriveDx, worth the money on all accounts.
I have a not so supported fusion drive in my Macbook Pro. There has never been any way to see the S.M.A.R.T. status. Decided to give this a try and the first thing that pops up is that my Crucial M4 SSD was close to failure because of a bug in the microcode. I have not tried to use this to look at my USB attached drives, since the only one I have is a small external that I boot from in emergencies. But DriveDx not only clearly sees both drives making up my fusion drive, but it also shows me the status of my 3 eSATA drives.
It's finally great to have something even better than Crystal Disk Info to monitor hard drive life signs.
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Advanced Drive Health Diagnostics
Regular diagnostic tools simply check the built-in S.M.A.R.T. status of the drive, which provides the user with little information about the actual state of the physical drive. As opposed to such tools, DriveDx analyzes the current state of the drive using all the drive health indicators that are most likely to point to a potential drive issue (for instance, SSD wear out / write endurance, I/O errors, pending sectors, reallocated bad sectors, etc). See competitive analysis against several popular products here
Drive Failing (Pre-fail) State Detection
Unlike most other tools, DriveDx detects not only “OK/Verified” and “Failed” drive health states, but also the “Failing (Pre-fail)” drive state. Thanks to that, you will detect problems much earlier than when using any other SMART monitoring utilities. This means that you have more chances to save your critical data before any data loss actually occurs. Learn more
Real-time Drive Health Monitoring
DriveDx runs in the background and periodically performs checks to determine the health of your SSD or HDD. When any issue or problem is found, it alerts you immediately. DriveDx acts as an “early warning system” for pending drive problems. As a result, you have more chances to save your critical data before any data loss actually occurs.
Early Warning System
DriveDx features a special multi-tier warning system that will inform the user about deviations from the normal state of drive attributes. It constantly monitors each S.M.A.R.T. attribute (and its change dynamics) and starts continuously warning the user as the drive degrades. On the initial stages of drive degradation, the user will receive notifications of the Warning type, then Failing (means that this drive parameter is in a pre-failure state) and only then Failed. Learn more
Drive Self-tests
DriveDx allows you to start and control diagnostic self-tests of SSD / HDD. The primary goal is to quickly identify if the drive is faulty. Usually self-tests consist of a collection of test routines like electrical and/or mechanical performance tests as well as the read performance test of the drive. Depending on self-test type it does read scan of a small area or the entire media. Learn more
Modern SSDs and HDDs Support
When evaluating the state of various drives, DriveDx can use different heuristic algorithms depending on the drive model and even its firmware version. One of the key advantages of the software is that the state of HDD and SSD drives is assessed using different algorithms, since many state indicators of HDD drives are not applicable or make no sense for SSD drives.
Automatic E-mail Reports
The user can get problem notifications and drive status reports to email. Reporting can be configured on the basis of various criteria. Thanks to this feature, the user does not need to have physical access to a specific computer all the time, which is especially useful for all kinds of server rooms, data centers, etc.
A modern, good-looking and user-friendly interface
DriveDx is one of the first drive diagnostic tools created in the true Mac style. All interface elements are clear and intuitive, so it will only take you a few minutes to learn the basics and start using the program. When a problem is identified, you will see a notification on the desktop and the status bar will show the status of your drives. Learn more
Drive Key Metrics Evaluation
DriveDx calculates various ratings of the current status of key drive characteristics (percent values):
SSD lifetime left indicator (in case of an SSD drive)
Thanks to these features, users can now have a fuller and better understanding of the current state of their drive.
Drive Free Space Monitoring
Mac OS X and applications might fail due to an inability to allocate storage space. In addition, low disk space might cause disk fragmentation. To avoid data loss and to ensure the continuous functioning of your computer it is important to monitor the amount of available storage space on your drive. DriveDx can automatically monitor free disk space and will alert user immediately if user defined free space threshold exceeded. Learn more
DriveDx will protect you from data loss and downtime!
How would you communicate with a device when you don’t have the IP?
You might be in a situation where you don’t have the IP address of a device in a local network, but all you have is records of the MAC or hardware address.
Or your computer is unable to display its IP due to various reasons, and you are getting a “No Valid IP Address” error.
Finding the IP from a known MAC address should be the task of a ReverseARP application, the counterpart of ARP.
But RARP is an obsolete protocol with many disadvantages, so it was quickly replaced by other protocols like BOOTP and DHCP, which deal directly with IP addresses.
In this article, we’ll show you how to find IPs and device vendors using MAC addresses with different methods for free.
Understanding ARP
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ARP (Address Resolution Protocol) is the protocol in charge of finding MAC addresses with IPs in local network segments.
It operates with frames on the data link layer.
As you might already know, devices in the data link layer depend on MAC addresses for their communication.
Their frames encapsulate packets that contain IP address information.
A device must know the destination MAC address to communicate locally through media types like Ethernet or Wifi, in layer 2 of the OSI model.
Understanding how ARP works can help you find IPs and MAC addresses quickly.
The following message flow diagram can help you understand the concept:
The local computer sends a ping (ICMP echo request) to a destination IP address (remote computer) within the same segment. Unfortunately, the local computer does not know the MAC address… it only knows the IP address.
The destination hardware address is unknown, so the ICMP echo request is put on hold. The local computer only knows its source/destination IP and its source MAC addresses. ARP uses two types of messages, ARP Request and Reply.
The local computer sends an ARP REQUEST message to find the owner of the IP address in question.
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This message is sent to all devices within the same segment or LAN through a broadcast MAC (FF:FF:FF:FF:FF:FF) as the destination.
Because the remote computer is part of the same network segment, it receives the broadcast message sent by the local computer. All other computers in the LAN also receive the broadcast but they know that the destination IP is not theirs, so they discard the packet. Only the remote computer with destination IP, responds to the ARP REQUEST with an ARP REPLY, which contains the target MAC address.
The local computer receives the ARP REPLY with the MAC address. It then resumes the ICMP echo request, and finally, the remote computer responds with an ICMP echo reply.
Finding IPs with ARP
You can use ARP to obtain an IP from a known MAC address.
But first, it is important to update your local ARP table in order to get information from all devices in the network.
Send a ping (ICMP echo reply) to the entire LAN, to get all the MAC entries on the table.
To ping the entire LAN, you can send a broadcast to your network.
Open the Command Prompt in Windows or terminal in macOS and type.
ping 192.168.0.255
My subnet is 192.168.0.0/24 (mask of 255.255.255.0), so the broadcast address is 192.168.0.255 which can be calculated or found with a “Print Route” command in Windows or a “netstat -nr” in macOS. Or can also be obtained with a subnet calculator.
For Windows:
Step 1.
Open the CMD (Command Prompt)
Go to the “Start” menu and select “Run” or press (Windows key + R) to open the Run application
In the “Open” textbox type “cmd” and press “Ok”.
This will open the command-line interface in Windows.
Step 2.
Enter the “arp” command.
The arp command without any additional arguments will give you a list of options that you can use.
Step 3.
Use the arp with additional arguments to find the IP within the same network segment.
With the command “arp -a” you can see the ARP table and its entries recently populated by your computer with the broadcast ping.
Step 4.
Reading the output.
The information displayed in the arp-a is basically the ARP table on your computer.
It shows a list with IP addresses, their corresponding physical address (or MAC), and the type of allocation (dynamic or static).
Let’s say you have the MAC address 60-30-d4-76-b8-c8 (which is a macOS device) and you want to know the IP.
From the results shown above, you can map the MAC address to the IP address in the same line.
The IP Address is 192.168.0.102 (which is in the same network segment) belongs to 60-30-d4-76-b8-c8.
You can forget about those 224.0.0.x and 239.0.0.x addresses, as they are multicast IPs.
For macOS:
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Step 1:
Open the Terminal App. go to Applications > Utilities > Terminal or Launchpad > Other > Terminal.
Step 2:
Enter the “arp” command with an “-a” flag.
Once you enter the command “arp -a” you’ll receive a list with all ARP entries to the ARP Table in your computer.
The output will show a line with the IP address followed by the MAC address, the interface, and the allocation type (dynamic/static).
Finding IPs with the DHCP Server
The Dynamic Host Configuration Protocol (DHCP) is the network protocol used by TCP/IP to dynamically allocate IP addresses and other characteristics to devices in a network.
The DHCP works with a client/server mode.
The DHCP server is the device in charge of assigning IP addresses in a network, and the client is usually your computer.
For home networks or LANs, the DHCP Server is typically a router or gateway.
If you have access to the DHCP Server, you can view all relationships with IPs, MACs, interfaces, name of the device, and lease time in your LAN.
Step 1.
Log into the DHCP Server. In this example, the DHCP server is the home gateway.
If you don’t know the IP address of your DHCP Server/ Gateway, you can run an ipconfig (in Windows) or ifconfig (in macOS/Linux).
This particular DHCP Server/Gateway has a web interface.
Step 2.
Enter the IP address on the search bar of the web browser, and input the right credentials.
Step 3.
Find the DHCP Clients List.
In this TP-Link router, the DHCP Server functionality comes as an additional feature.
Go to DHCP > DHCP Clients List. From this list, you can see the mapping between MAC addresses and their assigned IPs.
Using Sniffers
If you couldn’t find the IP in the ARP list or unfortunately don’t have access to the DHCP Server, as a last resort, you can use a sniffer.
Packet sniffers or network analyzers like Nmap (or Zenmap which is the GUI version) are designed for network security.
They can help identify attacks and vulnerabilities in the network.
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With Nmap, you can actively scan your entire network and find IPs, ports, protocols, MACs, etc.
If you are trying to find the IP from a known MAC with a sniffer like Nmap, look for the MAC address within the scan results.
How to find the Device and IP with a Sniffer?
Step 1.
Keep records of your network IP address information.
In this case, my network IP is 192.168.0.0/24. If you don’t know it, a quick “ipconfig” in Windows cmd or an “ifconfig” in macOS or Linux terminal can show you the local IP and mask.
If you can’t subnet, go online to a subnet calculator and find your network IP.
Step 2.
Download and open Nmap.
Download Nmap from this official link https://nmap.org/download.html and follow its straightforward installation process.
Step 3.
Open Nmap (or Zenmap) and use the command “sudo nmap -sn (network IP)” to scan the entire network (without port scan).
The command will list machines that respond to the Ping and will include their MAC address along with the vendor.
Don’t forget the “sudo” command.
Without it, you will not see MAC addresses.
Finding out the device vendor from a MAC address
Ok, so now you were able to find out the IP address using “arp -a” command or through the DHCP Server.
But what if you want to know more details about that particular device?
What vendor is it?
Mac pc for gaming. Your network segment or LAN might be full of different devices, from computers, firewalls, routers, mobiles, printers, TVs, etc.
And MAC addresses contain key information for knowing more details about each network device.
First, it is essential to understand the format of the MAC address.
Traditional MAC addresses are 48 bits represented in 12-digit hexadecimal numbers (or six octets).
The first half of the six octets represent the Organizational Unique Identifier (OUI) and the other half is the Network Interface Controller (NIC) which is unique for every device in the world.
There is not much we can do about the NIC, other than communicating with it.
But the OUI can give us useful information about the vendor if you didn’t use Nmap, which can also give you the hardware vendor.
A free online OUI lookup tool like Wireshark OUI Lookup can help you with this.
Just enter the MAC address on the OUI search, and the tool will look at the first three octets and correlate with its manufacturing database.
Final Words
Although the RARP (the counterpart of ARP) was specifically designed to find IPs from MAC addresses, it was quickly discontinued because it had many drawbacks.
RARP was quickly replaced by DHCP and BOOTP.
But ARP is still one of the core functions of the IP layer in the TCP/IP protocol stack.
It finds MAC addresses from known IPs, which is most common in today’s communications.
ARP works under the hood to keep a frequently used list of MACs and IPs.
But you can also use it to see the current mappings with the command arp -a.
Aside from ARP, you can also use DHCP to view IP information. DHCP Servers are usually in charge of IP assignments.
If you have access to the DHCP server, go into the DHCP Client list and identify the IP with the MAC address.
Finally, you can use a network sniffer like Nmap, scan your entire network, and find IPs, and MACs.
If you only want to know the vendor, an online OUI lookup like Wireshark can help you find it quickly.