FDDI_IS_MULTICAST

VOID
    FDDI_IS_MULTICAST(
        IN PUCHAR  Address,
        IN ULONG  AddressLength,
        OUT PBOOLEAN  Result
        );

FDDI_IS_MULTICAST sets a caller-supplied variable to a Boolean value indicating whether a given FDDI address is a multicast address.

Parameters

Address

Points to a network address.

AddressLength

Specifies the size in bytes of the address (either 2 or 6).

Result

Points to a caller-supplied variable in which this macro returns TRUE if the given address is multicast.

Comments

A caller can use the FDDI_LENGTH_OF_SHORT_ADDRESS and FDDI_LENGTH_OF_LONG_ADDRESS constants, corresponding to two and six bytes, respectively, as the value for AddressLength.

A multicast address applies to zero or more stations in a network and can be bridged to the extended network.

Callers of this macro can be running at any IRQL as long as the source address and supplied variable are resident.

See Also

FDDI_IS_BROADCAST