DHCP-binding states

Glenn Satchell Glenn.Satchell at uniq.com.au
Mon Oct 20 11:55:10 UTC 2008


Please read the dhcpd.leases man page - it explains the format of the
file and what all the fields mean.

Also, search the list archives - there are many freely available tools
that analyse dhcpd.leases. One of them may be suitable.

regards,
-glenn

>Date: Mon, 20 Oct 2008 10:05:05 +0200
>From: crashnb <manuel.helmbrecht at gmx.de>
>To: dhcp-users at isc.org
>Subject: Re: DHCP-binding states
>
>Hello,
>
>thank you for your help.
>If i had anderstand that correct than is Free and Backup, free leases 
>and the others are in that moment are not free.
>
>Regards,
>
>Manuel Helmbrecht
>Tim Peiffer schrieb:
>> Free and active are polar opposites.  They are the ends of the 
>> continuum.  The others fall in the middle.
>>
>> Free   - Never Used
>> Backup - In an active/active load balanced environment, backup is an 
>> address that is free but managed by the peer server
>> Released - Leased at some point in time, and given back to the pool
>> Expired - Leased at some point in time, and the client stopped 
>> renewing for at least 2 lease periods.
>> Active - Currently in use
>>
>> Regards,
>> Tim Peiffer
>> Network Support Engineer
>> University of Minnesota/NorthernLights GigaPOP
>>
>> crashnb wrote:
>>> Hello dhcp List,
>>>
>>> i havt to write a perlscript to check how match ip-addresses are 
>>> free. but we have a dhcp-server configurated with failover and 
>>> loadbalancing. want to check the dhcpd.leases file for that, but i 
>>> don't know what binding state
>>> free(i think this lease is free), active(i think this lease is 
>>> assigned), expired, released and backup is. can anybody describe me 
>>> what this binding states are for.
>>>
>>> Sorry about my bad english.
>>>
>>> greetings
>>>
>>> Manuel
>>
>>
>
>



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