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To show the interface settings for IGMP snooping:
1.
2.
Figure 317: Showing Interface Settings for IGMP Snooping
Filtering Multicast
Use the Multicast > IGMP Snooping > Interface (Configure Port/Trunk) page to
Data at Interfaces
configure an interface to drop IGMP query packets.
Parameters
These parameters are displayed:
◆
◆
Click Multicast, IGMP Snooping, Interface.
Select Show VLAN Information from the Action list.
IGMP Query Drop – Configures an interface to drop any IGMP query packets
received on the specified interface. If this switch is acting as a Querier, this
prevents it from being affected by messages received from another Querier.
(Default: Disabled)
IGMP RADIUS Authentication – Sends access request to RADIUS server for
authentication when a join report is received on an interface.
(Default: Disabled)
If the RADIUS server responds with authentication success, the switch learns
the group report and will not send the access request to the RADIUS server
when receiving the same report again in 86400 seconds (1 day).
When receiving an IGMPv3 report message, the switch will send the access
request to the RADIUS server only when the record type is IS_EX
(MODE_IS_EXCLUDE) which excludes a source list or TO_EX
(CHANGE_TO_EXCLUDE_MODE), and the source list is empty. Other type of
packets will not be authenticated.
The first time the report is received and is being authenticated, regardless of
whether the authentication result succeeds or fails, this report will still be sent
to any configured multicatst router port.
– 483 –
Chapter 16
| Multicast Filtering
Layer 2 IGMP (Snooping and Query)
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