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# TCPIP_STACK_NetMulticastGet Function

## C

    TCPIP_NET_HANDLE TCPIP_STACK_NetMulticastGet();

## Description

This function returns the current default multicast network interface in the TCP/IP stack. This is the interface on which IGMP and multicast packets will be transmitted when a default interface is specified.

## Preconditions

The TCP/IP stack should have been initialized by TCPIP_STACK_Initialize() and the TCPIP_STACK_Status() returned SYS_STATUS_READY.

## Returns

- The fault multicast network interface.

## Remarks

This function is intended for a TCP/IP stack implementing IGMP.