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DGS-3120 Series Layer 3 Managed Gigabit Ethernet Switch CLI Reference Guide
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DGS-3120-24TC:admin#show igmp group
Command: show igmp group
Interface Multicast Group Last Reporter IP Querier IP Expire
------------ --------------- --------------- --------------- ---------
System 224.0.0.2 10.42.73.111 10.48.74.122 260
System 224.0.0.9 10.20.53.1 10.48.74.122 260
System 224.0.1.24 10.18.1.3 10.48.74.122 259
System 224.0.1.41 10.1.43.252 10.48.74.122 259
System 224.0.1.149 10.20.63.11 10.48.74.122 259
Total Entries : 5
40-4 config igmp check_subscriber_source_network
Description
This command is used to configure the flag that determines whether or not to check the subscriber
source IP when an IGMP report or leave message is received. When this command is enabled on
an interface, any IGMP report or leave messages received by the interface will be checked to
determine whether its source IP is in the same network as the interface. If the check failed for a
received report or leave message, the message won’t be processed by IGMP protocol. If the check
is disabled, the IGMP report or leave message with any source IP will be processed by the IGMP
protocol.
Format
config igmp check_subscriber_source_network [ipif <ipif_name 12> | all] [enable | disable]
Parameters
ipif - Specify the IP interface name used for this configuration.
<ipif_name 12> - Enter the IP interface name used for this configuration here. This name can
be up to 12 characters long.
all - Specify that all the IP interfaces will be used.
enable - Specify that the check state will be enabled.
disable - Specify that the check state will be disabled.
Restrictions
Only Administrator, Operator and Power-User level users can issue this command.
Example
To enable the checking of subscriber source IP addresses when an IGMP report or leave message
is received on the interface called ‘System’:
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