isc-dhcp leasing wrong IP's

Rob Byrnes rbyrnes at gmail.com
Thu Jul 29 00:46:37 UTC 2010


On 29 July 2010 07:32, claudiu vasadi <claudiu.vasadi at gmail.com> wrote:
> Hello guys,
>
> I have a F-BSD 8.0 box running isc-dhcp with the following simple config:
>
>
> authoritative;
>
> option domain-name-servers 192.168.0.1;
> option subnet-mask 255.255.255.0;
>
> default-lease-time 3600;
> max-lease-time 86400;
> ddns-update-style none;
>
> subnet 192.168.0.0 netmask 255.255.255.0 {
> range 192.168.0.10 192.168.0.150;
> option routers 192.168.0.1;
> }
>
>
>
> as you can see, the lease range is between 192.168.0.10 and 192.168.0.150
> but for some reason, another BSD box always gets 192.168.0.8.
>
> I can't explain this since this is the only DHCP server on the network and I
> see no error logs.
>
> The other BSD box says:
>
> Jul 29 00:25:04 mainserver2 dhclient[1292]: DHCPREQUEST on sk0 to
> 255.255.255.255 port 67
> Jul 29 00:25:04 mainserver2 dhclient[1292]: DHCPACK from 192.168.0.5
> Jul 29 00:25:04 mainserver2 dhclient: New IP Address (sk0): 192.168.0.8
> Jul 29 00:25:04 mainserver2 dhclient: New Subnet Mask (sk0): 255.255.255.0
> Jul 29 00:25:04 mainserver2 dhclient: New Broadcast Address (sk0):
> 192.168.0.255
> Jul 29 00:25:04 mainserver2 dhclient: New Routers (sk0): 192.168.0.1
> Jul 29 00:25:05 mainserver2 dhclient[1292]: bound to 192.168.0.8 -- renewal
> in 43200 seconds.
>
> It looks legit but still .. why is isc-dhcp handing out IP's ouside the
> lease range ?

Had the other box received a lease from your DHCP server prior to
implementing the range parameter?

cheers,
Rob


More information about the freebsd-questions mailing list