Configuring DHCP for Mac OS

Follow the steps below to configure Apple Macintosh OS 8/9/X connected to the University network to use DHCP.

Choose the relevant operating system version from the list below:



Apple Mac OS 8/9

  1. Click on the Apple Menu, select Control Panel followed by TCP/IP to open the TCP/IP properties.
  2. Ensure that the Connect Via option is set to Ethernet.
  3. Ensure that the Configure: option is set to Using DHCP.
  4. Ensure that the Search domains box is empty.
  5. Close and Save changes within the TCP/IP properties box.
  6. You should now restart your Apple Macintosh to allow it to connect to the network.

Mac OS 8/9 Network Preferences Image

Once your computer has booted back up it is important to check to see if it has connected to the network.

To do this:

  1. Click on the Apple Menu, select Control Panel followed by TCP/IP.
  2. Identify within the TCP/IP properties box the IP Address value.

If the IP address begins with 172.31 then you are correctly connected to the network. However, if the IP address begins with either 169.254 or 192.168 then you should restart your Mac once again to refresh the values.



Apple Mac OS/X 10.3 (Panther)

  1. Click on the Apple Menu, select System Preferences.
  2. Select the Network icon and ensure that Configure is set to Built-in Ethernet.
  3. Similarly, under the TCP/IP tab ensure that Configure is set to Using DHCP.
  4. Close and Save changes within the Network properties box.
  5. You should now restart your Apple Macintosh to allow it to connect to the University network.


Once your computer has booted back up it is important to check to see if it has connected to the University network.

To do this perform the following:

  1. Click on the Apple Menu, select System Preferences followed by the Network icon.
  2. Identify under the TCP/IP tab the IP Address value.

If the IP address begins with 172.31 then you are correctly connected to the University network. However, if the IP address begins with either 169.254 or 192.168 then you should restart your Mac once again to refresh the values.



Apple Mac OS/X 10.4 (Tiger)

  1. Click on the Apple Menu and select System Preferences.
  2. In the Internet & Network section, click on the Network icon.
  3. Highlight Built-in Ethernet as shown in the image below, and click Configure...

    Built-in ethernet

  4. The Built-in Ethernet settings will appear but greyed out. Click on the padlock at the bottom of the page to edit the settings. You will be prompted for your administrator username and password. You should now be able to edit the Built-in The Ethernet settings as shown in the image below.
  5. In the TCP/IP tab, ensure that Configure IPv4 is set to Using DHCP.
  6. Ensure that DNS servers is empty.
  7. Ensure that Search Domains is empty.
  8. Click the open padlock icon to lock the settings again.

    dhcp settings in Leopard

Once your computer has booted back up it is important to check to see if it has connected to the University network.

To do this perform the following:

  1. Click on the Apple Menu, select System Preferences followed by the Network icon.
  2. Select the Built-in Ethernet and click configure.
  3. In the TCP/IP tab, check the IP Address value.

If the IP address begins with 172.31 then you are correctly connected to the University network. However, if the IP address begins with either 169.254 or 192.168 then you should restart your Mac once again to refresh the values.



Apple Mac OS/X 10.5 (Leopard)

  1. Click on the Apple Menu and select System Preferences
    system preferences
  2. In the Internet & Network section, click on the Network icon.
  3. Select Built-in Ethernet as shown in the image below.
  4. If the DNS server is greyed out, that means it is automatically provided by DHCP so you do not have to proceed any further.
  5. If the DNS server appears in normal text, i.e. is not greyed out, you will need to change it - click on the padlock to be able to make changes. You will be prompted to enter your administrator username and password.
  6. Click on Advanced.
  7. In the TCP/IP tab, ensure that Configure is set to Using DHCP.
  8. Select the DNS tab. Ensure that DNS servers and Search Domans are empty.
  9. Click OK.
  10. Click the open padlock icon to lock the settings again.