Help! no free leases

Frank Bulk frnkblk at
Fri May 4 12:48:18 UTC 2007

Do you have a 'deny unknown' statement in your configuration, and is that
MAC address listed?


-----Original Message-----
From: dhcp-users-bounce at [mailto:dhcp-users-bounce at] On Behalf
Of Matt Ashfield
Sent: Friday, May 04, 2007 6:49 AM
To: dhcp-server at
Subject: Help! no free leases

HI all,

We keep getting:

DHCPDISCOVER from 00:15:c5:1c:21:d4 via network 172.16.104/22:
no free leases

In our logs. We are running 2 servers in failover mode.

When we do a restart, we see the following, which indicates to me that there
*should* be leases available:
dhcpd: pool 90ecc98 172.16.104/22 total 999  free 483  backup 391  lts -46

Any help/advice is greatly appreciated.


Matt Ashfield
Network Analyst
Integrated Technology Services
University of New Brunswick
mda at 

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