@@ 46,11 46,24 @@ object config;
 object system_module;
 
 class Config {
+  // the upstream interface we wish to receive the delegation from
   string upstream_interface = "net0";
+
+  // the interface we wish to distribute the delegated address block to
+  // currently, we're only supporting one, but that could easily be changed.
   string downstream_interface = "net1";
+
+  // size of address range we'd like to have (but may not recieve)
   int requested_prefix = 64;
+
+  // file where leases will be stored
   string leasefile = "/var/run/dhcpv6_pd_leases";
 
+  // name of the service that provides route advertisements
+  // for systems such as MacOS, this is not system provided and
+  // the correct name must be provided
+  string advertisement_service_name;
+
   protected variant void create() {
   }