Use the following fields to configure multicast interfaces that
share IGMP, PIM and group permission settings:
Multicast Settings
– Interfaces
Description
Name
Enter a name to identify an interface group.
Description
Enter an optional description.
Interface
Add one or more firewall
interfaces that belong to the interface group and therefore share
multicast group permissions, IGMP settings and PIM settings.
Group Permissions
Specify multicast groups that participate
in PIM Any-Source Multicast (ASM) or PIM Source-Specific Multicast
(SSM):
Any Source—Add a Name to
identify a multicast Group that is allowed
to receive multicast traffic from any source on the interfaces in
the interface group. By default the group is Included in
the Any Source list. Deselect Included to
easily exclude a group without deleting the group configuration.
Source Specific—Add a Name for
a multicast Group and Source IP
address pair for which multicast traffic is allowed on the interfaces
in the interface group. By default the Group and Source pair is Included in
the Source Specific list. Deselect Included to
easily exclude a Group and Source pair without deleting the configuration.
IGMP
Specify settings for IGMP traffic. IGMP
must be enabled for multicast receiver-facing interfaces.
Enable—Select
to enable the IGMP configuration.
IGMP Version—Choose version 1, 2,
or 3 to run on the interface.
Enforce Router-Alert IP Option—Select
to require the router-alert IP option when speaking IGMPv2 or IGMPv3. This
must be disabled for compatibility with IGMPv1.
Robustness—Choose an integer value
to account for packet loss on a network (range is 1 to 7; default
is 2). If packet loss is common, choose a higher value.
Max Sources—Specify the maximum number
of source-specific memberships allowed for the interface group (range
is 1 to 65,535 or unlimited).
Max Groups—Specify the maximum number
of multicast groups allowed for this interface group (range is 1
to 65,535 or unlimited).
Query Configuration—Specify the following:
Query Interval—Specify the interval
at which general queries are sent to all receivers.
Max Query Response Time—Specify the
maximum time between a general query and a response from a receiver.
Last Member Query Interval—Specify
the interval between group or source-specific query messages (including
those sent in response to leave-group messages).
Immediate Leave—Select to leave the
group immediately when a leave message is received.
