By default, the switch does not check whether IGMP messages contain the Router-Alert option in the header and sends all the IGMP messages to the upper-layer routing protocol. To improve device performance, reduce transmission cost, and enhance protocol security, configure the switch to discard IGMP messages without the Router-Alert option.
By default, the switch sends IGMP messages with the Router-Alert option.
The system view is displayed.
The VSI view is displayed.
The switch is configured to drop received IGMP messages without the Router-Alert option in the IP header.
The switch is configured to send IGMP messages with the Router-Alert option in the IP header.