Configuring option 82

[Bill Shirley]

Options in a pool are options to be *sent* not matched.

Why are you avoiding the class statement? What does the agent.circuit-id and agent.remote-id contain?
I can't figure out why you're using substring on these values (in your original post).

Bill

On 9/27/2019 3:44 AM, Surya Teja wrote:
> Hi
> It might be too many questions but I wan to configure my dhcpd configuration file by avoiding the classes as much as possible
> If the subnet is configured as like below snippet
> subnet 192.168.10.0 netmask 255.255.255.0 {
>   pool {
>          range   192.168.10.10 192.168.10.199;
>         option subnet-mask 255.255.255.0;
>         option routers 10.1.10.1;
>         option domain-name "test.com <http://test.com>";
>         option agent.circuit-id "22";
>         option agent.remote-id "192.168.10.242";
>   }
> }
> can we achieve the option 82 configuration setup with above snippet
>  Thanks in advance and or if any reference links to setup the option 82 functionality without class can also be appreciated
>
> On Thu, Sep 26, 2019 at 7:42 PM Surya Teja <suryateja042 at gmail.com <mailto:suryateja042 at gmail.com>> wrote:
>
>     Hi is the option 82 supported by using class concept only ?
>     or can it be defined as other general options like domain-name server, router in scope section ?
>
>     On Tue, Sep 24, 2019 at 12:49 PM Surya Teja <suryateja042 at gmail.com <mailto:suryateja042 at gmail.com>> wrote:
>
>         Hi,
>         I am trying to configure the dhcp option 82, went through the google forums and one of it suggest the syntax like
>         # vim /etc/dhcp/dhcpd.conf
>         ########################################################
>         log-facility local7;
>         *class "VLAN10" {
>                 match if binary-to-ascii(10,16,"",substring(option agent.circuit-id,2,2)) = "10";
>         } # VLAN10
>         class "VLAN20" {
>                  match if ( substring(option agent.remote-id,2,15)="10.5.20.4"
>         and binary-to-ascii(10, 16, "",substring(option agent.circuit-id, 4, 2)) = "2" );
>         }*
>         subnet 192.168.10.0 netmask 255.255.255.0 {
>                 pool {
>         *allow members of  "VLAN10";*
>                         default-lease-time               600;
>                         max-lease-time                    7200;
>                         range 192.168.10.1 192.168.10.199;
>                         option routers  192.168.10.254;
>                         option broadcast-address  192.168.10.255;
>                         option subnet-mask  255.255.255.0;
>                         option domain-name-servers      4.2.2.2;
>         }
>         }
>         subnet 192.168.20.0 netmask 255.255.255.0 {
>                 pool {
>         *allow members of                "VLAN20";*
>                 default-lease-time              600;
>                 max-lease-time                  7200;
>                 range                           192.168.20.20 192.168.20.199;
>                 option routers                  192.168.20.254;
>                 option broadcast-address        192.168.20.255;
>                 option subnet-mask              255.255.255.0;
>                 option domain-name-servers      4.2.2.2;
>
>         }
>         (Just ignore ip values)
>         can we configure this concept only by using classes and make it allow or deny like that?
>         or can we use the option space concept to get it worked(do we have any other syntax). Thanks in advance
>
>
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