Disables the snooping check for the presence of the router alert option.
By default, the snooping check is enabled.
Global configuration mode
IGMP snooping checks for the presence of the router alert option in the IP packet header of the IGMP message. Packets that do not include this option are dropped.
The following example disables the snooping router alert check globally.
device(config)# ip igmp router-alert-check-disable