ISC Dhcpd Duplicate UID Lease

Thu, 25 Jun 2015 14:10:51 +0000

Someone asked this question in one of his blog posts:

Ever see this?

dhcpd: uid lease 192.168.1.150 for client xx:xx:xx:xx:xx:xx is duplicate on 192.168.1/24

Yes, I’m seeing something like that now in the my dhdcp logs. Here is the actual message:

DHCPREQUEST for 192.168.1.109 from 08:00:27:6e:61:b8 via eth0
DHCPACK on 192.168.1.109 to 08:00:27:6e:61:b8 via eth0
DHCPINFORM from 192.168.1.109 via eth0
DHCPACK to 192.168.1.109 (08:00:27:6e:61:b8) via eth0
uid lease 192.168.1.224 for client 08:00:27:6e:61:b8 is duplicate on 192.168.1.0/24
DHCPREQUEST for 192.168.1.109 from 08:00:27:6e:61:b8 via eth0
DHCPACK on 192.168.1.109 to 08:00:27:6e:61:b8 via eth0

I think I know why this happened. Basically, the machine with MAC address of ’08:00:27:6e:61:b8′ used to have grab an IP address

Duplicate on Kenno's Open Note

ISC Dhcpd Duplicate UID Lease