The result will show you the IP address of connected device and other ARP statistics. I assigned the IP of Class A, with a slash value /24. I will show the results of arp -a command in the figures below, and explain them one by one. It will display the list of MAC and IP resolution table.

Now from the command prompt, run the ARP Command arp -a. There is a little chance of happening such coincidence, even if it happens, you will discover the IP address you were looking for. If it is so, you may get the “duplicate” status (Follow the link to read more about Duplicate IP) in ipconfig/all command. I Hope your IP will not conflict with that of the device.There is a little chance of happening such coincidence, even if it happens, you will discover the IP address you were looking for. Don’t worry about the IP classes, subnets, etc. I have a Hub 4 and i keep getting notifications that there is suspicious. I was also going to setup MAC address filtering, and when I enabled MAC filtering a pull down shows up that lists all the MAC addresses that the modem can currently see (both hardwired and WiFi devices). Now, what all you can do is assign an IP address of private range to your PC. I went into my modem/router user interface today to look around at my settings and to check for any firmware updates. You may check it from the LED indication of the device or the Ethernet status of your PC. Make sure that the device is and your PC has a working connection.

The details about the IP ranges are in the chapter Classful IP address and Classless IP address. You may assume that it must have an IP address of the private IP range. If the DHCP of the of the device is not running, your PC will not get an automatic IP assigned to it. Find IP address if the DHCP is not functioning please refer to this topic How to assign Manual IP. What if the DHCP of the device is not running? Let’s come to that point.įor all the queries related to the ipconfig, checking IP status, etc. So, you find out the IP address of an unknown device so easily. That is the IP of your modem, Wi-Fi access point, or any other connected device. The IP of the DHCP server, Gateway, or the DNS server is the same. I am trying to figure out a way to get an alert when a new (unknown) device comes on to my network, since I know all the devices on my network by MAC. As you can see from the above images, the Ethernet status and ipconfig/all command will show the status of your PC IP and that of the DHCP server too.

Unknown router on my network