dhcpd.leases Contains Lots of Very Old Leases
Eric.Kenny at marist.edu
Fri Feb 6 13:36:25 UTC 2009
It seems that they are just the old and expired ones, which appears to be
normal behavior after further reading. However, I'm wondering if having
to parse all of these entries is what's causing DHCP timeouts on the
We have about 100 /21 networks served with open ranges.
Eric J. Kenny
3399 North Rd.
Poughkeepsie, NY 12601
Simon Hobson <dhcp1 at thehobsons.co.uk>
Users of ISC DHCP <dhcp-users at lists.isc.org>
02/05/09 04:55 PM
Re: dhcpd.leases Contains Lots of Very Old Leases
Eric Kenny wrote:
>We are running dhcpd version 4.1.0a1 and have recently discovered a
>problem with our lease file. There appears to be quite a number of
>that expired more than 8 months ago that are still in there. According
>the dhcpd.leases man page "From time to time, dhcpd removes obsolete
>information to prevent the file from becoming too large." It seems like
>this may not be happening.
Are these leases that have been superceded by later entries for the
same address, or just leases that are old and expired ?
If it's the former then something is wrong. If it's the latter, then
it's normal as all old leases are kept - in their most recent
version. Ie, when a client renews, then a new lease record is
appended - and when the cleanup occurs, the old record will be purged
so that only the most recent is left.
How big are your pool declarations ? It sounds like they are large.
Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
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