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MIB_IPMCAST_BOUNDARY structure (iprtrmib.h)

The MIB_IPMCAST_BOUNDARY structure contains a row in a MIB_IPMCAST_BOUNDARY_TABLE structure that lists a router's scoped IPv4 multicast address boundaries.

Syntax

typedef struct _MIB_IPMCAST_BOUNDARY {
  DWORD dwIfIndex;
  DWORD dwGroupAddress;
  DWORD dwGroupMask;
  DWORD dwStatus;
} MIB_IPMCAST_BOUNDARY, *PMIB_IPMCAST_BOUNDARY;

Members

dwIfIndex

Type: DWORD

The index value for the interface to which this boundary applies. Packets with a destination address in the associated address/mask range are not forwarded with this interface.

dwGroupAddress

Type: DWORD

The 32-bit integer representation of the IPv4 group address which, when combined with the corresponding value in dwGroupMask, identifies the group range for which the scoped boundary exists.

Note  Scoped addresses must come from the range 239.*.*.* as specified in RFC 2365.
 

dwGroupMask

Type: DWORD

The 32-bit integer representation of the IPv4 group address mask which, when combined with the corresponding value in dwGroupAddress, identifies the group range for which the scoped boundary exists.

dwStatus

Type: DWORD

A status value that describes the current status of this entry in a MFE boundary table.

Value Meaning
1
 The entry has active status.
2
 The entry has notInService status.
3
 The entry has notReady status.
4
 The entry has createAndGo status.
5
 The entry has createAndWait status.
6
 The entry has destroy status.

Remarks

Note that the Iprtrmib.h header file is automatically included in the Iphlpapi.h header file. The Iprtrmib.h header file should never be used directly.

Requirements

Requirement Value
Minimum supported client None supported
Minimum supported server Windows Server 2008, Windows Server 2003 with SP1 [desktop apps only]
Header iprtrmib.h (include Iphlpapi.h)

See also

MIB_IPMCAST_BOUNDARY_TABLE