best practice for moving subnets?

Glenn Satchell glenn.satchell at
Thu Nov 18 12:10:56 UTC 2010

On 18/11/10 03:08 AM, Tom Schmitt wrote:
>> Datum: Wed, 17 Nov 2010 09:57:03 +0000
>> Von: Simon Hobson<dhcp1 at>
>> Betreff: Re: best practice for moving subnets?
>>> But what about all the host-entries in the leasedatabase? I would
>>> have to delete them all manually, wouldn't I?
>> Host entries ?
> All our printers and servers (and a few workstations as well) have host entries to make sure they are getting the same IP every time.
> There are a lot of changes to these hostentries every day. If you would write them into the configfile, the dhcpd would do nothing else than reloading its config the hole day. We wouldn't be able to use DHCP at all.
> So we don't write the hostentries into the config. We write them into the leasedatabase. This way we can do it without restarting the dhcpd.

If you append the lease file to the new server, then all these entries 
will be copied over. You need to have valid subnet definitions to go 
with the host entries.

Glenn Satchell                            |  Miss 9: What do you
Uniq Advances Pty Ltd, Sydney Australia   |  do at work Dad?
mailto:glenn.satchell at         |  Miss 6: He just tel:0409-458-580   |  types random stuff.

More information about the dhcp-users mailing list