In most cases, your network IP is assigned automatically from your Wi Fi router. Your public IP will be given from your internet service provider and the one on the other side of your router being assigned by DHCP automatically.
In either instance, if you need to change these IP addresses, you can do so. In this guide, we show you how easy it can be how to change your IP address. One method is much safer and secure than the others.
How to Find IP Address on Mac OS X
Here is the easy way to view your IP address before you decide to change it.
- Select the Wi Fi button in your Mac’s menu bar – top right-hand corner
- Click on Network Preferences.
- Select your network by selecting any of the icons, which are green on the left side of the window.
- Click the Advanced button. (You can access network information page here)
- Click on the TCP/IP tab. (Second tab from the left in the top of the screen window)
- You can see a series of numbers alongside where it says IPv4 Address. The router IP will be listed alongside the router
- Click OK to close
Manual or Automatic IP Assignment
You will find IPs assigned by the following:
- Automatic: DHCP (Dynamic Host Configuration Protocol) automatically assigns your IP from your Wi Fi router.
- Manual: You can set a static IP on your Mac OS X on the network. Here you will configure IPv4 as it is still the more common version in use.
Here’s how you change this option:
- On your Mac, choose Apple menu
- Navigate to System Preferences, then click ‘Network’ and then the TCP/IP tab
- Select a network connection you wish to use (for instance, Ethernet), which shows in the list
- Click on the Configure IPv4 pop-up menu, and then select an option:
- If you wish an automatic IP, click using DHCP
- If you want a manual or static IP address. Click to select ‘Manually’ and enter the address in the IP Address field
- You should also have additional information like the subnet mask, router, and DNS (Domain Name System) server address
- Enter the subnet mask and Wi Fi router IP address (always a static IP address) in the labelled fields
- When entering your DNS server address, click ‘Advanced’ then click DNS, and then select the Add button before entering the address
- Click OK apply to confirm
Note: If you assign yourself a static network address, you can find ‘No IP address’ Mac errors. Reasons for this are that if anyone turns on their device before you, the router may assign their system the same network IP. Thus, you have a conflict.
If you need to know how to find external IP address of another computer, you may need to check related articles for OS X help.
New IP Address Method 2
If you need to change IP address, Mac, for your router, one way to do this quickly is as follows.
- Unplug your router or modem. Often, these are now the same unit. If not, you can unplug both units from the mains power.
- Wait a couple of minutes before you return the power. Doing it this way, you make use of your Dynamic IP Address rather than a static IP, which your internet service provider assigns you.
- These may change every time you reboot your router, or they have a time out function which renews your IP at set intervals
- Connect the plug of the router to the mains. Wait until your router connects to the internet.
- Check your new IP address using the method we used previously, or you can find your Mac IP address through the system preferences.
On some occasions, you may need to leave your modem/ router unplugged for several hours for the IP to be released and you are given a new one.
Best Option to Change Mac IP
All the options here can change your IP, although they are not permanent or it can cause problems.
The easiest way you can do this is by using a VPN service. Once you install one on your Mac, you will have a new IP that doesn’t cause any network conflicts, and also, your ISP won’t know who you are as your new public IP is that of the VPN server.
Using this method, you log into your client, pick a server to connect to and click apply to connect to that server. From then, you are hidden and have full security.