How to connect to a network multiple times through the same ethernet port

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Akhil Balaji

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May 11, 2013
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Is there any way to create virtual ethernet adapters that will receive different ip addresses from a DHCP server. I want to use this to overcome a bandwidth limit imposed by my college by bridging the connections together.
 
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bill001g

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Aug 9, 2012
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Yes you can but I do not think it will accomplish what you want.

You can turn on 802.1q in most nic setting this allows for vlan tagging which will create virtual adapters. But it is dependent on being plugged into a switch that supports this.

You can also put multiple networks on a single nic but they cannot be on the same subnet because they all share a common mac address.

The only other way to do this is to run complete virtual machines and each can get a different IP because they have different mac addresses.

Now if the college is smart they limit the port to a single mac address.

Of course if they are stupid and say ip x.x.x.x can only do 1g/day then all you do is go into the driver for the nic and change the mac address and get a different IP every time you hit the limit. This is why I would suspect they also lock the mac address to a port.
 
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