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ethernet mac spoofing

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Operating Systems OS X (Apple) ethernet mac spoofing
# 1  
Old 02-25-2011
ethernet mac spoofing
I tried to use the command
sudo ifconfig en0 ether xx:xx:xx:xx:xx:xx
to do mac spoofing for internet connection in my office. It works only for 5 minutes. Every time after about 5mins, the Internet will be disconnected. Smilie

Any one knows how to solve this problem? Thanks.
# 2  
Old 02-25-2011
The network may be set up to disconnect any unknown or unauthorized MAC addresses.
This User Gave Thanks to fpmurphy For This Post:
andrewust
# 3  
Old 02-25-2011
I am sure this mac address is the only authorized one for that cable, it's fixed
# 4  
Old 02-25-2011
Do you have a dynamic address? It might be stomping on your settings every time DHCP renews.
This User Gave Thanks to Corona688 For This Post:
andrewust
# 5  
Old 02-25-2011
Quote:
Originally Posted by Corona688
Do you have a dynamic address? It might be stomping on your settings every time DHCP renews.
Sorry, I am new to MAC, I don't quite understand this. How to check whether I have a dynamic address or not?
# 6  
Old 02-26-2011
It's nothing to do with mac or PC.

If you haven't set a static address on your mac, you don't have one. Every once in a while your mac asks your router for a new address via DCHP and overwrites your previous network settings with it.
This User Gave Thanks to Corona688 For This Post:
andrewust
# 7  
Old 02-27-2011
thanks you guys, I've fixed the problem.
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