Re: IP conflict in my network




"cmw" <mailcmw@xxxxxxxxx> wrote in message
news:1165547641.831582.255840@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

One of the problems was with a laptop and everytime it connected at a
particular site it would give an ip conflict with another pc.

I traced the problem to this laptops network card having the same MAC
address as one of the PC's network cards.

I know that every network card should have a unique MAC address but it
happened a couple of different times at this company and each time it
was the fact that the MAC address on 2 different NICs was the same.

I haven't seen this problem since though so I guess its fairly rare.


Are you sure that this conflict was not due to either party using software
to spoof the MAC address?




--
Posted via a free Usenet account from http://www.teranews.com

.



Relevant Pages

  • Re: Stolen Computer
    ... useful is likely the "Mac address" of your network card. ... laptop there is a small chance that your ISP recorded it the last time you logged ... If you have wireless networking it likely also has a record of the mac address ... If you know your mac address and the ISP of your "friend" you sometimes can ...
    (microsoft.public.security)
  • Re: Stolen Computer
    ... > useful is likely the "Mac address" of your network card. ... > laptop there is a small chance that your ISP recorded it the last time you ...
    (microsoft.public.security)
  • Re: Just venting (totally OT)
    ... Is an iMac a laptop? ... paranoid ravings about the advisability of getting a Mac laptop. ... It's not that different in terms of `basic use' from a Windoze ... Got to have standards. ...
    (uk.people.support.depression)
  • Re: Tracing computers via AOL?
    ... > of the laptop, ... the CPU serial number enabled in their BIOS? ... The MAC probably cannot be seen past the user's intranet so it probably ... but that's only for hosts on my intranet. ...
    (alt.computer.security)
  • RE: Cannot Ping Beyond Default Gateway & DHCP Server
    ... The first thing the TW guy did was to plug in his laptop and demonstrate ... says he has never had to change a MAC nor tell the home office to change one. ... Network Diagnostics shows pings to his IP, Default Gateway, and DHCP Server ... Verified manually (pings to those DNS ...
    (microsoft.public.windowsxp.network_web)