3com 5500-ei pwr Guia De Referência
![3com](https://files.manualsbrain.com/attachments/960452ff43b9899cbcffced60c87abf956e7967a/common/fit/150/50/f6ac125d7af2cf40fec58935fa6d4bf71457a57efe50bee91208a434f325/brand_logo.jpeg)
2-7
Description
Use the igmp group-policy vlan command to configure a multicast group filter on the current port to
control the access to the multicast groups in the defined group range.
Use the undo igmp group-policy vlan command to remove the configured multicast group filter.
By default, no filter is configured; that is, a host can join any multicast group.
To restrict the hosts attached to a port from joining certain multicast groups, you can use this command
to limit the range of multicast groups that the port serves. This command delivers the same result as the
igmp group-policy command.
Note that the port on which the command is configured must belong to the specified VLAN and be IGMP
enabled; otherwise, the configuration does not take effect.
Related commands: igmp group-policy.
Examples
# Allow hosts attached to Ethernet 1/0/1 in VLAN 10 to join only multicast group 225.1.1.1.
<Sysname> system-view
System View: return to User View with Ctrl+Z.
[Sysname] acl number 2000
[Sysname-acl-basic-2000] rule permit source 225.1.1.1 0
[Sysname-acl-basic-2000] quit
[Sysname] interface Ethernet 1/0/1
[Sysname-Ethernet1/0/1] port access vlan 10
[Sysname-Ethernet1/0/1] igmp group-policy 2000 vlan 10
igmp host-join port
Syntax
igmp host-join group-address port interface-list
undo igmp host-join group-address port interface-list
View
Interface view
Parameters
group-address: Address of the multicast group to join.
port interface-list: Configures the specified port or ports under the current VLAN interface as simulated
member host(s) for the specified multicast group. With the interface-list argument, you can define one
or more individual ports (in the form of interface-type interface-number) and/or one or more port ranges
(in the form of interface-type interface-number1 to interface-type interface-number2, where
interface-number2 must be greater than interface-number1). The total number of individual ports plus
port ranges cannot exceed 10. For port types and port numbers, refer to the parameter description in
the “Port Basic Configuration” part in this manual.