ip-maddress

List all multicast addresses

$ ip maddress

$ ip maddress show dev [eth0]

$ sudo ip maddress add [33:33:00:00:00:02] dev [eth0]

$ sudo ip maddress delete [33:33:00:00:00:02] dev [eth0]

$ ip maddress help

ip maddress [command] [options]

ip maddress manages link-layer multicast addresses. It displays which multicast groups a device is subscribed to and allows manual addition or removal of static multicast memberships.
Multicast addresses enable one-to-many communication, where a single packet can be received by multiple hosts that have joined the multicast group. This is commonly used for service discovery, streaming, and cluster communication.

show [dev DEVICE]

Display multicast addresses (optionally for specific device)

Join a multicast group on specified device

Leave a multicast group on specified device

Display help information

Adding and deleting multicast addresses requires root privileges. Changes are not persistent across reboots. Application-level multicast (IGMP) is handled separately.

The ip maddress command is part of iproute2, the modern replacement for the older net-tools package. iproute2 was developed by Alexey Kuznetsov starting in 1999 to provide a unified interface to Linux networking features.

ip(8), ip-link(8), ip-address(8)