The two parameters that need to be configured on the corresponding single hub are 'set auto-discovery-sender enable' and 'set ike-version 2'. First, 'set auto-discovery-sender enable' is necessary for the hub to be able to initiate the discovery of ADVPN peers. Second, 'set ike-version 2' specifies the IKE version to match the one used in the spoke configuration, which ensures compatibility. Therefore, both of these configurations are essential for proper ADVPN functionality between the hub and spoke.