An IP address is a unique address that identifies a device on the internet or a local network

For Home users (computers not on the RRU network) simply go to the following site

For Windows Computers on the RRU network it is a little more complicated:

For a Mac Computer on the RRU network it is even more complicated:

Go to the Apple Menu, then select System Preferences
Click on "Network" in the System Preferences panel
Under "Show:", select the network interface that you want the IP/MAC address for. Generally, this will either be Built-In Ethernet or Airport
To find the IP address, click on the TCP/IP tab
To find the MAC address of the Ethernet card, click on the Ethernet tab
To find the MAC address of the Airport card, click on the Airport tab

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