This chapter explains how to configure and verify wireless multicast on Cisco controllers, covering multicast modes, IPv6 snooping/MLD, IGMP, multicast VLANs, directed multicast service, non‑IP multicast, and multicast filtering.
Wireless multicast
Outlines wireless multicast communication methods and modes on controllers, including unicast, multicast, and FlexConnect operation, and details IGMP snooping, MGID assignment, and multicast traffic optimization for APs and clients.
IPv6 snooping
Outlines the operation of IPv6 snooping and IPv6 neighbor discovery inspection, detailing mechanisms for learning and securing IPv6 address-to-MAC bindings, traffic analysis, vulnerability mitigation, hardware capture rules, and traffic classification to enhance Layer 2 security and scalability.
IPv6 multicast over multicast
Outlines the configuration and mechanism of IPv6 multicast over multicast tunnels for wireless controllers, detailing AP participation, dual-protocol environments, tunnel types, mixed mode limitations, and multicast support across Cisco Catalyst 9800 platforms.
Directed multicast service
Introduces directed multicast service, explaining how APs transmit multicast packets as unicast frames to improve delivery and battery life for clients, and lists supported Cisco Aironet AP models.
Restrictions for wireless broadcast, non-IP multicast and multicast VLAN
Outlines restrictions for wireless broadcast, non-IP multicast, and multicast VLAN, including limitations on VLAN groups, VLAN pool mappings, and forwarding of non-IPv4 multicast and broadcast traffic.
Multicast filtering
Outlines multicast filtering configuration per WLAN, detailing how the feature selectively controls IGMP and MLD group membership requests for IPv4 and IPv6 clients, prevents unauthorized AP group access, and reviews release support history on Cisco IOS XE.