Address from wrong pool

[Siegenthaler Tina]

Am 05.02.2010 um 13:21 schrieb Glenn Satchell:

> Siegenthaler Tina wrote:
>> Dear list users
>> I have the following config file:
>> failover peer "DHCP-IEU" {
>>        primary;
>>        address 130.60.17.131;
>>        port 520;
>>        peer address 130.60.33.131;
>>        peer port 520;
>>        max-response-delay 60;
>>        max-unacked-updates 10;
>>        mclt 1800;
>>        split 128;
>>        load balance max seconds 5;
>> }
>> ddns-update-style none;
>> option domain-name-servers 130.60.128.3, 130.60.64.51;
>> option domain-name "uzh.ch";
>> authoritative;
>> log-facility local2;
>> host IEU_0024_L1 { hardware ethernet 00:00:aa:9d:26:79; }
>> host IEU_0025_L1 { hardware ethernet 00:10:83:41:ef:e4; }
>> class "IEU_0024_L1" { match hardware; }
>> class "IEU_0025_L1" { match hardware; }
>> subclass "IEU_0024_L1" 1:00:00:aa:9d:26:79;
>> subclass "IEU_0025_L1" 1:00:10:83:41:ef:e4;
>> subnet 130.60.33.32 netmask 255.255.255.224 {
>>        option routers 130.60.33.33;
>>        option broadcast-address 130.60.33.63;
>>    pool { allow members of "IEU_0024_L1" ; range 130.60.33.36; }
>>    pool { allow members of "IEU_0025_L1" ; range 130.60.33.37; }
>>        pool {
>>                failover peer "DHCP-IEU";
>>                deny dynamic bootp clients;
>>                allow known-clients;
>>                range 130.60.33.40 130.60.33.50;
>>        }
>>        default-lease-time 21600;
>>        max-lease-time 21600;
>> }
>> I'd expect that the hosts "IEU_0024_L1" and "IEU_0025_L1" would get  
>> the adresses from "their" single-IP pools, that is, 130.60.33.36  
>> and 130.60.33.37. Instead, they get an address from the "known- 
>> clients" pool (130.60.33.40 - 130.60.33.50). I understand that   
>> those two hosts would be allowed to pull an address from both  
>> pools, their single-IP-pool (as they are members of the subclass  
>> allowed there), but also from the known-clients pool, since they  
>> are of course known-clients. How does dhcpd decide in such a case  
>> from which pool to assign an IP? Order in which they appear in the  
>> config (obvioulsy not, or it should work with that config...)?
>> Why such a configt? I'd like to assign some hosts a fixed IP, but  
>> I'd like it to be logged whenever they get a lease, so that's why I  
>> don't use the fixed-address statement. Other (in fact, most) hosts  
>> are to be assigned their IP dynamically (from the known-clients  
>> pool).
>> Thanks for any insights,
>> Tina
>
> There's no hard and fast rule about which pool a client can draw a  
> lease from when there is more than one valid pool. You need to deny  
> those two classes from the shared pool.
>
>

Thanks. I was afraid it would be something like this. Pity, this would  
have been nice and easy, now the config will be much mor complicated  
to create from the database. But I'm sure I will get it to work...

Tina