Subclass Scope in Subnet?

Alp Eren Kose alperenkose at
Fri Dec 18 15:27:39 UTC 2015

Hi all,

I have got a question about subclass declaration scopes. The thing is we
will be sending the Controller IP to Aruba APs using Option 43.

The recommended configuration of Aruba for this is like the following:

option serverip code 43 = ip-address;
class "vendor-class" {
      match option vendor-class-identifier;
subnet netmask {
   default-lease-time 200;
   max-lease-time 200;
   option routers;

   subclass "vendor-class" "ArubaAP" {
      option vendor-class-identifier "ArubaAP";
      option serverip;


As you can see in the example the subclass declaration is in the subnet.

I know that class declarations are global, but what about subclass
declarations? Are they global as well? If I have another subnet with the
same subclass name inside but with different serverip or router, would it
work correctly? Or what would you recommend for configuring Option 43 for
Aruba APs on different subnets with different controller ip?

Thank you so much in advance.
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