It is important to understand what the IP address is for several reasons. It consists of four sets of numbers from 0 to 255. The IP address (or just IP) is the unique address of the computer (device) on the network, which allows you to distinguish your computer from any other computer.

In this article, we will answer frequently asked questions such as what your IP address means, what someone can do with your IP address, how to change your IP address and so on. Scroll through the output to find the interface you want to set and renew DHCP for, let’s assume you’re looking for “Wi-Fi” which may look like this:Īlongside ‘Device’ you’ll find the interface, in this case it’s “en0”, which is what gets plugged into the aforementioned ipconfig command.Every device using an internet network has a unique IP address. You can easily determine what the device interface is by running networksetup -listallhardwareports like so: For most modern Macs, we’re looking for wi-fi which is typically on en0, but many Mac users use ethernet, an iPhone personal hotspot, a tethered Android phone, or an external NIC card as well, each of which may have a different device interface depending on the hardware. If you don’t know the interface, then the first step is to determine the computers hardware device interface used for the particular networking port you’re using. It’s best to set DHCP for the specific interface, however. Sudo ipconfig set en0 DHCP & sudo ipconfig set en1 DHCP If the DHCP info returns blank, then either the interface queried was wrong, or the DHCP lease did not renew or distribute properly.Īnother crude option would be to run ipconfig for all available device interfaces on the Mac by stringing the syntax together like so: Once the command is run you can check if DHCP has set properly by determining DHCP info with the same ipconfig command with ‘getpacket’ like so:Īssuming the prior ‘set’ command was successful, getpacket will return the DHCP assigned IP, DNS server, subnet mask, router / gateway, and the lease time. Let’s say it’s en0, standard for modern Macs with wi-fi only. If you know the device interface (en0, en1, en2, etc), just run that command to release and then renew DHCP for the determined device.

The basic syntax to renew DHCP lease from the command line with ipconfig is as follows: How to Renew DHCP Lease from Command Line of Mac

Mac ipconfig command