Chapter 35 IP Multicast Routing Configuration DGS-3610 Series Configuration Guide
35.6.2.2 Adding Membership Information on
Routers Statically
Sometimes the subnet connected to an interface has no host that can send IGMP member
reports, but you still want the switch to forward the multicast packets of one group to the
subnet. In this case, you can configure the interface as a static connection multicast group,
to forward the multicast frames to the interface.
In the interface mode, execute the following commands for the configuration:
DGS-3610# config terminal
Enter the global configuration mode.
DGS-3610(config)# interface interface-id
Enter the interface configuration mode.
DGS-3610(config-if)# ip igmp static-group
group-address
Add the static group on the configuration interface.
DGS-3610(config-if) # exit
Enter the privileged mode.
You can execute the no ip igmp static-group group-address command to cancel the
configured static connection group.
35.6.2.3 Configuringjoin-group
This command configures the switch related interface as with the host behavior and needs
to join corresponding multicast group. In this way, the sub switch can learn corresponding
group packet actively. If required, it will use this configuration when one group member is
added to the interface. Use the no form of this command to cancel the join of the switch in
this group.
DGS-3610# config terminal
Enter the global configuration mode.
DGS-3610(config)# interface interface-id
Enter the interface configuration mode.
DGS-3610(config-if)# ip igmp join-group
group-address
Configure to join the host group on the interface.
DGS-3610(config-if) # exit
Enter the privilege mode.
Execute the no ip igmp join-group group-address command to leave corresponding
multicast group.
The following command shows how to add the gigabitethernet0/1 interface to the multicast
group 224.1.1.1:
interface gigabitethernet 0/1
ip igmp join-group 224.1.1.1
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