On Wed, Jun 08, 2005 at 05:53:13PM +0300, Meni Shapiro wrote: > What is it that you want to know?? > If someone else (other then your computer) is using your pc's mac > address?? > Not posible. mac addresses are uniq. MAC addresses are trivially changed by the administrator, and manufacturing errors have produced duplicate MAC addresses in hardware. > If someone uses your IP address?? do you have a static IP from you > ISP?? then ask your IP The issues are still valid on a completely disconnected LAN where the poster may be his own "service provider". Sadly I have no suggestions for how to detect IP or MAC conflicts aside from the chaos they cause, and the already-suggested arpwatch to log what's appearing.
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