Igmp Filtering; Introduction; Preparing For Configurations - Raisecom ISCOM2600G-HI (A) Series Configuration Manual

Raisecom
ISCOM2600G-HI (A) Series Configuration Guide

8.6 IGMP filtering

8.6.1 Introduction

To control user access, you can configure IGMP filtering. IGMP filtering includes limiting the
range of accessible multicast groups by using the filtering profile and limiting the maximum
number of multicast groups.
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To ensure information security, the administrator needs to limit the multicast users, such as
what multicast data are allowed to receive and what are not.
You can configure IGMP Profile filtering profile to control the interface. One IGMP Profile
can be configured one or more multicast group access control restrictions and access the
multicast group according to the restriction rules (permit and deny). If a rejected IGMP
Profile filtering profile is applied to the interface, the interface will discard the IGMP report
packet from this group directly once receiving it and disallow the interface to receive this
group of multicast data.
IGMP filtering profile can be configured on an interface or interface+VLAN.
IGMP Profile only applies to dynamic multicast groups, but not static ones.

You can configure the maximum number of multicast groups allowed to join based on
interface or interface+VLAN and the rules to restrict the maximum number.
The maximum group number rule defines the actions to be taken for reaching the maximum
number of multicast groups jointed by users, namely, disallowing new users to join the
multicast group or overriding a joined group.
IGMP filtering is generally used with IGMP Snooping/IGMP MVR/multicast VLAN
copy.

8.6.2 Preparing for configurations

Scenario
Different users in the same multicast group receive different multicast requirements and
permissions. You can configure filtering rules on the switch which connects the multicast
router and user host to restrict multicast users. You also can configure the maximum number
of multicast groups jointed by users. IGMP Proxy is generally used with IGMP Snooping or
IGMP MVR.
Prerequisite


IGMP filtering profile
Limit to the maximum number of multicast groups
Create VLANs.
Add related interfaces to the VLANs.
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