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Question

What does "Only 1 MAC Adress" mean ?

Sep 5, 2015 2:45PM PDT

I will move to my University's campus in less than 2 weeks and in the contract is mentioned that I have only 1 Internet cable and I'm restricted to only 1 MAC Adress. What does that mean? Can I connect more than 2 computers,phones etc using a WiFi router with LAN outputs for my PC ? or I will be forced to use only my PC trough the cable.

Discussion is locked

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Answer
MAC address
Sep 5, 2015 2:54PM PDT
"A media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment. MAC addresses are used as a network address for most IEEE 802 network technologies, including Ethernet and WiFi."

Now, what that really means is you are assigned a single IP address that is tied to whatever device you connect to their system, so you want to use a router to connect to it and use it's on MAC address, so you can have other devices connected by wire or wife and receiving an internal IP address from the router.
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Answer
Port security probably
Sep 7, 2015 8:25AM PDT
Ethernet uses MAC (Media Access Control) addresses to uniquely identify a host in an Ethernet environment. Every Ethernet network interface card (NIC) has a MAC address burned in its firmware, which is why MAC addresses are sometimes known as hardware addresses.

Source

This means is that you can connect only a single device, since each device has a different MAC address. Your campus probably uses something like port security on Cisco devices, which means that maybe you will cause a security incident if you connect more than one device.

Like James said, it's probably the best idea to connect a router and than connect all your devices to that router.