The next API function is the AddrMulticastAdd() function used to configure a device with an (IP-to-Ethernet) multicast hardware address.
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Required Configuration
Necessary only if if NET_MCAST_CFG_IPv4_RX_EN or NET_IPMCAST_CFG_MULTICAST_SELIPv4_TX_EN is configured for transmit and receive multicasting (see NET_IP_CFG_MULTICAST_SEL).
Notes / Warnings
Since many network controllers’ documentation fail to properly indicate how to add/configure an MAC device with a multicast address, the following methodology is recommended for determining and testing the correct multicast hash bit algorithm.
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