C
HAPTER
37
| Multicast Filtering Commands
IGMP Snooping
– 852 –
◆ If the IGMP proxy reporting is configured on a VLAN, this setting takes
precedence over the global configuration.
EXAMPLE
Console(config)#ip igmp snooping proxy-reporting
Console(config)#
ip igmp snooping
querier
This command enables the switch as an IGMP querier. Use the no form to
disable it.
SYNTAX
[no] ip igmp snooping querier
DEFAULT SETTING
Enabled
COMMAND MODE
Global Configuration
COMMAND USAGE
◆ IGMP snooping querier is not supported for IGMPv3 snooping (see ip
igmp snooping version).
◆ If enabled, the switch will serve as querier if elected. The querier is
responsible for asking hosts if they want to receive multicast traffic.
EXAMPLE
Console(config)#ip igmp snooping querier
Console(config)#
ip igmp snooping
router-alert-option-
check
This command discards any IGMPv2/v3 packets that do not include the
Router Alert option. Use the no form to ignore the Router Alert Option
when receiving IGMP messages.
SYNTAX
[no] ip igmp snooping router-alert-option-check
DEFAULT SETTING
Disabled
COMMAND MODE
Global Configuration