dhcpd.conf logical hierachy

Bill Shirley bill at c3po.polymerindustries.biz
Thu Oct 19 07:19:23 UTC 2017


Why do you think you need to link the group to the subnet?  The fixed-address
of printer-1 ties it to the subnet.

For your 2nd question, add the subnets and hosts to dhcpd.conf. What problem
are you thinking about?

Bill

On 10/19/2017 2:52 AM, Narcis Garcia wrote:
> How do I explicitly link the group MyReservations to that subnet and its
> options?
> What if some day I want to setup other subnets and other fixed hosts?
>
>
> El 18/10/17 a les 21:33, Bob Harold ha escrit:
>> On Wed, Oct 18, 2017 at 3:19 PM, Narcis Garcia <informatica at actiu.net
>> <mailto:informatica at actiu.net>> wrote:
>>
>>      Any way I define the static pool, error messages occur.
>>
>>
>> Maybe there a confusion in the words "static pool"
>> "pool" and "range" are used to define dynamic ranges.
>> "fixed-address" defines a static assignment.
>>   
>>
>>      This is the only configuration I've reached without errors when a known
>>      host connects, but I might not be defining subnet/interface where static
>>      cases are attached to:
>>
>>      subnet 172.16.0.0 netmask 255.255.0.0 {
>>              option subnet-mask 255.255.0.0;
>>              option routers 172.16.20.100;
>>              option broadcast-address 172.16.255.255;
>>              option domain-name-servers 172.16.21.61;
>>              pool {
>>                      # IP range to be assigned dynamically
>>                      range 172.16.20.150 172.16.20.189;
>>                      allow unknown-clients;
>>              }
>>      }
>>      group MyReservations {
>>
>>
>> These four lines are redundant and should be removed:
>>
>>              option subnet-mask 255.255.0.0;
>>              option routers 172.16.20.100;
>>              option broadcast-address 172.16.255.255;
>>              option domain-name-servers 172.16.21.61;
>>
>> Delete the four lines above.
>>   
>>
>>              host printer_1 {
>>                      hardware ethernet 00:11:22:33:44:55;
>>                      fixed-address 172.16.20.201;
>>              }
>>      }
>>
>>
>> That looks good.  If you need a larger range, just remeber that the
>> dynamic range and static fixed-addresses should no overlap.  So ranges like:
>>      range 172.16.20.190 172.16.20.200;
>>      range 172.16.20.202 172.16.20.255;
>>
>> As others have said.
>>
>> -- 
>> Bob Harold
>>
>>
>>
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