static IP from LDAP with Option 82

[Jason Brandt]

I'm no expert, so someone may correct me here, but looks like you may need
a client class setup, with a match statement for your option 82.  I found
this information regarding static IP with option 82:

class "static-option-82" { match option agent.remote-id; }

subclass "static-option-82" "VP123456";


If you're using circuit-id, may have to replace agent.remote-id with that.
 Translated to LDAP would be:

Client Class Syntax:

dn: cn=static-option-82,dc=<your dc info>
cn: static-option-82
objectClass: top
objectClass: dhcpClass
dhcpStatements: match option agent.circuit-id

Then you would need a subclass entry for each host.  Also, because of the
way subclass entries need to be named, I would name the host entry
something like: host-AVC999990012672

dn: cn=AVC999990012672, dc=<your dc info>
cn: AVC999990012672
objectClass: top
objectClass: dhcpSubClass
dhcpClassData: "static-option-82"

Obviously the DN's can be changed for whatever OU structure you're using.
 Give that a shot and see if it helps.




On Tue, May 28, 2013 at 11:03 PM, matt <matt at onthenet.com.au> wrote:

>
> Doh, only digest. anyway..
>
> Yes Jason in non ldap mode I am able to allocate an IP using option 82.
>
> This config does the trick.
>
> host user1 {
>         host-identifier option agent.circuit-id "AVC999990012672";
>         fixed-address 10.0.30.123;
> }
>
> When running with LDAP however the search filter is using only the
> dhcpHWAddress as below.
>
> (&(objectClass=dhcpHost)(**dhcpHWAddress=ethernet c8:4c:75:a2:b7:19))
>
> If I add in the MAC so the above filter has a match, then the IP is
> allocated fine.
>
> My LDAP entry for the host is as follows.
>
> dn: cn=AVC999990012672, cn=customers,cn=dhcp,dc=test,**dc=com
> objectClass: top
> objectClass: dhcpHost
> cn: AVC999990012672
> dhcpStatements: host-identifier option agent.circuit-id "AVC999990012672"
> dhcpStatements: fixed-address 10.0.30.66
>
> So it appears I need to modify the filter somehow ?
>
> thanks.
>
> Matt
>
>
>
>
>
>
>
>
>
>
>  Have you tried running in ldap debug mode to see the ldap query its
>> using?  Do your options work properly if you test in non ldap mode?
>>
>> Jason K. Brandt
>> 309-208-6687
>>
>> Sent from my iPad
>>
>> On May 28, 2013, at 7:29 PM, matt <matt at onthenet.com.au> wrote:
>>
>> Hi,
>>
>> I have dhcpd (4.2.5) using Openldap for its config with success.
>> I'm trying to assign Static IP's using Option 82 instead of the MAC
>> address but running into problems.
>> I can see some discussion regarding Option 82 and LDAP from years ago but
>> nothing recently.
>> Has anyone had any experience with Option 82 IP assignment and LDAP ?
>>
>> thanks.
>>
>> Matt.
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>
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-- 
Jason K. Brandt
Systems Administrator
Bradley University
(309) 677-2958
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