Multiple class setup

[Bill Shirley]

On 10/4/2014 5:11 AM, Chris wrote:
> Hi all.
> I'm trying to configure the dhcp server to grant leases in same subnet but
> different cidr classes however it doesn't appear to be working:
>
> * dhcp/dns server and router is 10.0.1.3/255.255.255.0
> * any dhcp request should get a short term lease in 10.0.1.64/26
> * dhcp requests from specified mac addresses get long term lease in
> 10.0.1.128/28
>
> shared-network local {
>
>          # short term
>          subnet 10.0.1.64 netmask 255.255.255.192 {
>                  range 10.0.1.65 10.0.1.126;
>                  option routers 10.0.1.3;
>                  option ntp-servers 10.0.1.3;
>                  option broadcast-address 10.0.1.127;
>                  option domain-name "local.lan";
>                  option domain-name-servers 10.0.1.3;
>
>                  default-lease-time 10800;
>                  max-lease-time 21600;
>          }
>
>          # long term
>         subnet 10.0.1.128 netmask 255.255.255.240 {
>                 range 10.0.1.128 10.0.1.142;
>                 option routers 10.0.1.3;
>                 option ntp-servers 10.0.1.3;
>                 option broadcast-address 10.0.1.143;
>                 option domain-name "local.lan";
>                 option domain-name-servers 10.0.1.3;
>
>                 default-lease-time 604800;
>                 max-lease-time 864000;
>
>                 host solaredge1 {
>                          hardware ethernet 00:27:02:10:65:49;
>                          fixed-address pv-inverter1.local.lan;
>                 }
>
>                 host solaredge2 {
>                          hardware ethernet 00:27:02:10:30:21;
>                          fixed-address pv-inverter2.local.lan;
>                 }			
> 			
>                 host cctv-dvr {
>                          hardware ethernet 00:19:fb:e2:ab:1b;
>                          fixed-address cctv.local.lan;
>                 }
>
>
>         }
> }
> 	
> Hostnames in the "long term" range have corresponding A and PTR records in the
> dns zone but they still get "short term" IPs assigned.
> What's the right way to implement the setup?
> Thanks
>
> -Chris
>
>
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> dhcp-users at lists.isc.org
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Looks like to me you do NOT have a shared-network. Quoting your post:
* dhcp/dns server and router is 10.0.1.3/255.255.255.0
Your subnet mask says one subnet.

You might try:
class "long_term" {
   match hardware;

   default-lease-time 604800;
   max-lease-time 864000;
}
# other "long_term" devices:
subclass "long_term" 01:xx:xx:xx:xx:xx:xx;  # non fixed-address device - replace with MAC


# fixed-address doesn't go in pool
group {
   default-lease-time 604800;
   max-lease-time 864000;

   host solaredge1 {
     hardware ethernet 00:27:02:10:65:49;
     fixed-address pv-inverter1.local.lan;
   }

   host solaredge2 {
     hardware ethernet 00:27:02:10:30:21;
     fixed-address pv-inverter2.local.lan;
   }

   host cctv-dvr {
     hardware ethernet 00:19:fb:e2:ab:1b;
     fixed-address cctv.local.lan;
   }
}


subnet 10.0.1.0 netmask 255.255.255.0 {
   range 10.0.1.65 10.0.1.126;
   option routers 10.0.1.3;
   option ntp-servers 10.0.1.3;
# don't want this:
#  option broadcast-address 10.0.1.127;
   option domain-name "local.lan";
   option domain-name-servers 10.0.1.3;

# long term
   pool {
     allow members of "long_term";
     deny dynamic bootp clients;

     range 10.0.1.128 10.0.1.142;
   }

# short term
   pool {
     allow unknown clients;
     deny members of "long_term";
     deny dynamic bootp clients;

     default-lease-time 10800;
     max-lease-time 21600;

     range 10.0.1.65 10.0.1.126;
   }
}

Hope this helps,
Bill

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