User`s manual

Moxa Managed Ethernet Switch/Extender Featured Functions
3-52
IGMP Snooping Enable
Setting Description Factory Default
Enable/Disable Checkmark the IGMP Snooping Enable checkbox near the
top of the window to enable the IGMP Snooping function
globally.
Disabled
NOTE: You should enable IGMP Snooping if the network also uses non-Moxa 3rd party switches.
Query Interval
Setting Description Factory Default
Numerical value, input
by the user
Sets the query interval of the Querier function globally. Valid
settings are from 20 to 600 seconds.
125 seconds
IGMP Snooping Enhanced Mode
Setting Description Factory Default
Enable IGMP Multicast packets will be forwarded to:
• Auto-Learned Multicast Querier Ports
• Member Ports
Disable
Disable IGMP Multicast packets will be forwarded to:
• Auto-Learned Multicast Router Ports
• Static Multicast Querier Ports
• Querier Connected Ports
• Member Ports
NOTE: IGMP Snooping Enhanced Mode in networks composed entirely of Moxa switches
IGMP Snooping
Setting Description Factory Default
Enable/Disable Enables or disables the IGMP Snooping function on that
particular VLAN.
Enabled if IGMP
Snooping is enabled
globally
Querier
Setting Description Factory Default
Enable/Disable Enables or disables the Moxa switch’s querier function. Enabled if IGMP
Snooping is enabled
globally
V1/V2 and V3 checkbox V1/V2: Enables switch to send IGMP snooping version 1 and 2
queries
V3: Enables switch to send IGMP snooping version 3 queries
V1/V2
Static Multicast Querier Port
Setting Description Factory Default
Select/Deselect Select the ports that will connect to the multicast routers.
These ports will receive all multicast packets from the source.
This option is only active when IGMP Snooping is enabled.
Disabled
NOTE
If a router or layer 3 switch is connected to the network, it will act as the Querier, and consequently this
Querier option will be disabled on all Moxa layer 2 switches.
If all switches on the network are Moxa layer 2 switches, then only one layer 2 switch will act as Querier.
IGMP Table
The Moxa switch displays the current active IGMP groups that were detected. View IGMP group setting per
VLAN ID on this page.