Configuring IP Multicast Switching Modifying IPMS Parameters
OmniSwitch AOS Release 8 Network Configuration Guide December 2017 page 25-20
Enabling and Disabling IGMP Querying
By default, IGMP querying is disabled.The following subsections describe how to enable and disable
IGMP querying by using the ip multicast querying command.
Enabling the IGMP Querying
You can enable the IGMP querying by entering ip multicast querying followed by the enable keyword.
For example, to enable the IGMP querying on the system if no VLAN is specified, you would enter:
-> ip multicast querying enable
You can also enable the IGMP querying on the specified VLAN by entering:
-> ip multicast vlan 2 querying enable
Specifying a Static Source IP Address
By default, a source IP address is not specified when IGMP querying is enabled; the system automatically
determines the addresses to use for IGMP queries. However, a static source IP address can be specified to
overcome the need for an IP interface. If configured, the static source IP is then always used for querying,
regardless of the IP interface address or administrative state.
To configure a static source IP address for the system, use the ip multicast querying command with the
static-source-ip parameter. For example:
-> ip multicast querying static-source-ip 10.2.2.1
To configure a static source IP address for a specific VLAN, use the ip multicast querying command
with the vlan and static-source-ip parameters. For example:
-> ip multicast querying vlan 2 static-source-ip 10.2.2.1
To remove a static source IP address for the system or a specific VLAN, use the no form of the ip
multicast querying command. For example:
-> no ip multicast querying static-source-ip
-> no ip multicast querying vlan 2 static-source-ip
Disabling the IGMP Querying
You can disable the IGMP querying by entering ip multicast querying followed by the disable keyword.
For example, to disable the IGMP querying on the system if no VLAN is specified, you would enter:
-> ip multicast querying disable
Or, as an alternative, enter the following command to restore the IGMP querying to its default setting:
-> no ip multicast querying
You can also disable the IGMP querying on the specified VLAN by entering:
-> ip multicast vlan 2 querying disable
Or, as an alternative, enter the following command to restore IGMP querying to its default setting:
-> no ip multicast vlan 2 querying
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