_IP_ADDRESS_V4

struct _IP_ADDRESS_V4

{

    unsigned long m_AddressType; 

       union

       {

           IP_SUBNET_V4  m_IpSubnet;

           IP_RANGE_V4  m_IpRange;

     };

} 

m_AddressType

Specifies which of the IP v4 address types is used below. Must be set to IP_SUBNET_V4_TYPE or IP_RANGE_V4_TYPE

m_IpSubnet

IPv4 address expressed as subnet

m_AddressType

IPv4 address expressed as the range of the addresses