duplicate ip's

  snakevista 19:54 09 Dec 06

Approximately 80 of our users have laptops that they use at home and in the office. All of the laptops have integrated wireless. When they bring there laptops home, their laptops acquire an IP address that was handed out by their wireless router (Linksys, Netgear). When they come back into the office and open up their laptop, they immediately connect to the wireless with the IP address that their wireless router gave them, causing an IP conflict, and then they are assigned a new IP address from our address pool.
Although this is only a split second when they have duplicate IPs it causes some serious network lag for the next 10 minutes or so.

I looked at 802.1x but the company will not buy switches capable of that. Any suggestions?

  zuberk 19:56 09 Dec 06

Ask your users to change the IP range they use at home to something different to the one you use at work.

Or conversely, you could change your range at work.

Typically home user devices come pre-configured to use addresses lower down the private class c 192.168.x.x range like

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