sapDefHostIpv4SubnetAddr 1.3.6.1.4.1.6527.3.1.2.4.3.138.1.1

The value of the object sapDefHostIpv4SubnetAddr specifies the IPv4 subnet address for this SAP default host. It must be equal to one of the addresses of the subscriber interface this SAP belongs to, that is one of its vRiaIpAddress values.