weird case for IP duplicated on LAN

[Simon Hobson]

IT Support <it.compilation at gmail.com> wrote:

>> Suggest you look for a ClientID in both hosts, probably the same.

> How can I check the ClientID?

Please fix your mailer client (or your processes) to properly quote text ...

Look at the leases in the leases file - should be called dhcpd.leases, location is distribution dependent. Best way is to go to the END of the file and search backwards for the latest mention of the MAC addresses involved.