How to get a new computer or device on the Harvard network

Before you can access the SEAS wired and/or wireless networks with a new computer or other networked device (such as a wifi-enabled cell phone), its Media Access Control (MAC) address must be registered.

Find your network device MAC  address in Windows

  1. Hold down the Windows-Key (the key between Ctrl and Alt) and press R OR click the Start button then Run... This will bring up the Run Window.
  2. In the Open: field, type in: cmd
  3. Click OK. This will open a command prompt.
  4. At the > command prompt, type in: ipconfig /all
  5. Press Enter. You should now see various details about the network cards in your system.  Select the device you are looking up the MAC Address for. On most PCs there is both a Wireless Connection (Wireless LAN adapter Wireless Network Connection) and a Local Area Connection (Ethernet adapter Local Area Connection) device.
  6. Look for the line that says Physical Address, this is your MAC address. It should look something like: 08-00-27-61-E7-15.
  7. If you have multiple network cards in your PC, you should see a Physical Address line for each one. You may have to scroll up to see them all.

Find your network devices Media Access Control addresses in Mac OS X.

  1. Go to Apple menu --> System Preferences --> Network
  2. Select the device for which you are looking up the MAC Address. On most Macs there is both an AirPort (wireless network) and an Ethernet (wired network) device.
  3. Click the Advanced button.
  4. For AirPort, you should see something similar to: AirPort ID: 00:17:f2:ea:cf:f0. This is the MAC Address for your Mac's wireless network card.
  5. For Ethernet, click the Ethernet tab, you should see something similar to: Ethernet ID: 00:17:f2:c7:79:90. This is the MAC Address for your Mac's wired network card.

Register your computer for use on the Harvard Network

Access the SEAS network from off-campus (VPN)

Most SEAS network resources such as file and print services are only available to machines directly connected to the SEAS wired and/or wireless networks. If you find that you need access to these resources from outside the SEAS network, a Virtual Private Network (VPN) connection is required.

Harvard provides VPN software to establish a secure and encrypted remote connection to the campus networks at:

And provide your harvardKey credentials along with the duo code

After installation, you can start the Cisco VPN Client and connect. Make sure you type in the username field:

  • <Your_harvardkey>#SEAS

To indicate that you want to connect to the SEAS tunnel within the vpn, services are restricted to that particular tunnel.

 You should now have a secure connection to the SEAS network. You can now access most SEAS network resources as if you were physically on-campus.

Wireless Access

Follow these instructions to access a campus wifi network:

Harvard Wireless Access