Lantech LGS-2624C, User Manual, Page: 93 / 279

2-5.3 Port Group Fitering
The section describes how to set the IGMP Port Group Filtering? With the
IGMP filtering feature, an user can exert this type of control. In some
network Application environments, as like the metropolitan or multiple-
dwelling unit (MDU) installations, an user might want to control the multicast
groups to which a user on a switch port can belong. It allows the user to
control the distribution of multicast services, such as IP/TV, based on some
type of subscription or service plan.
With this feature, you can filter multicast joins on a per-port basis by
configuring IP multicast profiles and associating them with individual switch
ports. An IGMP profile can contain one or more multicast groups and
specifies whether access to the group is permitted or denied. If an IGMP
profile denying access to a multicast group is applied to a switch port, the
IGMP join report requesting the stream of IP multicast traffic is dropped,
and the port is not allowed to receive IP multicast traffic from that group. If
the filtering action permits access to the multicast group, the IGMP report
from the port is forwarded for normal processing.
IGMP filtering controls only IGMP membership join reports and has no
relationship to the function that directs the forwarding of IP multicast traffic.
Web Interface
To configure the IGMP Snooping Port Group Configuration in the web
interface:
1. Click Configuration, IGMP Snooping, Port Group Filtering
2. Click Add new Filtering Group
3. Scroll the Port to enable the Port Group Filtering.
Specify the Filtering Groups in the blank field.
4. Click the save to save the setting
5. If you want to cancel the setting then you need to click the Reset button.
It will revert to previously saved values