Tracking historical lease information
chris.p.buxton at gmail.com
Wed Jan 19 23:32:23 UTC 2011
Most commercial DDI solutions offer this. For example, on a BlueCat Adonis, there's a software component that watches the dhcpd.leases file and reports all new leases back to the BlueCat Proteus that controls it. All leases are stored in a database for easy retrieval, and you can look at the history of a given IP address to see who leased it and when.
However, it sounds like you don't have the ability to migrate to a new DHCP platform. In which case, perhaps you can use a similar technique when you roll your own, or perhaps you can find a DDI solution that doesn't require replacing the box (nor your existing DHCP installation on the box); I know there's at least one such out there.
On Jan 19, 2011, at 3:05 PM, David Carlin wrote:
> I'm looking for a way to track historical lease information. For
> example, I want to be able to query a specific IP and time stamp and
> be returned the MAC address which has a lease for that IP at that
> point in time.
> I've come across the following logging/tracking solutions searching
> the list archives:
> Gluff - http://hans.liss.pp.se/software/gluff
> FindHosts - http://wormhole.anchorageak.net/FindHosts/
> DHCPStatus - http://dhcpstatus.sourceforge.net/
> reportdhcp.pl - http://www.omar.org/opensource/reportdhcp/
> LanLord - http://lanlord.sourceforge.net/
> DHCPStatus, reportdhcp.pl and Lanlord seem to be geared toward
> reporting on the status of current leases. Only FindHosts and Gluff
> appear to have facilities to support historical use. Gluff seems the
> most promising, but I'm not in control of the DHCP servers to upgrade
> them to 4.1.0+.
> Anyone else have any other recommendations before I go the roll your own route?
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