D-Link DI-1750 Reference Manual page 309

Example of IGMP Static configuration
Static multicast-group configuration command could define different classes static multicast-group
when it uses different parameters, the following example will introduce the results of using the different
command parameters:
interface ethernet 0/0
ip igmp static-group *
the front configuration command configured static all the multicast-group on the ethernet 0/0 port, it
means that the port belongs to all the multicast-group, multicast-group route protocol will send all the ip
multicast message to this port.
interface ethernet 0/0
ip igmp static-group 224.1.1.7
the front configuration command configured static the multicast-group 227.1.1.7 on the ethernet 0/0
port, it means that the port belongs to the multicast-group 224.1.1.7, multicast-group route protocol will
send all the ip multicast message to this port.
interface ethernet 0/0
ip igmp static-group 224.1.1.7 include 192.168.20.168
the front configuration command configured staticly multicast-group 224.1.1.7 on the ethernet 0/0 port,
and at the same time it defines the source-filter of the multicast-group is 192.168.20.168,it means that
the port belongs to all the multicast-group, but it just only to accept the ip multicast message from
192.168.20.168,multicast-group route protocol will send ip multicast message which is from
192.168.20.168 to 224.1.1.7 to this port.
Aim at the front example, if you want to accept the ip multicast message which comes from 192.168.20.169 and
send to 227.1.1.7, you could configure the following command under the port configuration.
ip igmp static-group 224.1.1.7 include 192.168.20.169
If you want to add source-filter information which aim at the multicast-group, you can execute the front
command many times, define the different source-address.
Note: when using the upper configuration command, you can not configure a multicast-group its
multicast group information not only aims at a special source address, but also aims at all source
addresses in the same multicast group at one time. Similarly, you can't configure a multicast group its
group information not only aims at all source addresses, but also aims at a special source address in
the same multicast group. If you do, the last command will be ignored. For an example, if you have
configured command ip igmp static-group 224.1.1.7, and the next you configure command ip igmp
static-group 224.1.1.7 include 192.168.20.168, then the last command will be ignored.
7.2.10 Configure IGMP Immediate-leave list
If IGMP v2 has enabled on a port of your router, and only one IGMP host exsits in the network this port
connected with, then you can implement "Immediate Leave" of the IGMP host through configuring
IGMP Immediate-leave list. As specified by IGMP v2, if a host wants to leave a special multicast group,
this host will send Leave message to all multicast routers, and multicast routers will send out Group
Specific message to acknowledge whether there has been no host needs to receive multicast
messages destined for this multicast group. If you have configured "Immediate Leave", it will avoid the
message exchange between IGMP host and multicast routers, it can also avoid the delay of multicast
group membership changing maintained by multicast routers.
Note: This command can be configured either in global configuration or in port configuration, but in
global configuration this command is prior than in port configuration. If you first configure this command
in global configuration, then following configuring of this command in port configuration will be ignored.
If you first configure this command in port configuration, then following configuring of this command in
global configuration will cancel the command formerly configured in port configuration.
As to IGMP-Router v2, you can use the following command to configure IGMP Immediate-leave list in
port configuration:
Command
ip igmp
group-list list-name
immediate-leave Configure the access list for IGMP host which
can implements "immediate leave from multicast
Model Name
Purpose
- 307 -