typedef struct _MIB_IPNETROW_LH {
  IF_INDEX dwIndex;
  DWORD    dwPhysAddrLen;
  UCHAR    bPhysAddr[8];
  DWORD    dwAddr;
  union {
    DWORD          dwType;
  };
} MIB_IPNETROW, *PMIB_IPNETROW;

typedef struct _MIB_IPNETTABLE {
  DWORD        dwNumEntries;
  MIB_IPNETROW table[ANY_SIZE];
} MIB_IPNETTABLE, *PMIB_IPNETTABLE;