Fortinet MR1 - Manual (Page 623)

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Version 1 Host Timer - The time remaining until the local router will assume that there are no longer any
IGMP version 1 members on the IP subnet attached to this interface. When an IGMPv1 membership
report is received, this timer is reset to the group membership timer. While this timer is non-zero, the local
router ignores any IGMPv2 leave messages for this group that it receives on the selected interface. This
field is displayed only if the interface is configured for IGMP version 1.
Version 2 Host Timer - The time remaining until the local router will assume that there are no longer any
IGMP version 2 members on the IP subnet attached to this interface. When an IGMPv2 membership
report is received, this timer is reset to the group membership timer. While this timer is non-zero, the local
router ignores any IGMPv1 and IGMPv3 leave messages for this group that it receives on the selected
interface. This field is displayed only if the interface is configured for IGMP version 2.
Compatibility - This parameter shows group compatibility mode (v1, v2 and v3) for this group on the
specified interface.
Filter Mode - The source filter mode (Include/Exclude/NA) for the specified group on this interface. When
NA mode is active the field is blank
Command Buttons
Refresh - Refresh the data on the screen with the present state of the data in the router.
Viewing IGMP Interface Membership Details Information
Selection Criteria
Slot/Port - Select the Slot and port for which data is to be displayed. Slot 0 is the base unit.
Multicast Group IP - Select the IP multicast group address for which data is to be displayed. If no group
membership reports have been received on the selected interface you will not be able to make this
selection, and none of the non-configurable data will be displayed.
Non-Configurable Data
Interface - This parameter shows the interface on which multicast packets are forwarded.
Group Compatibility Mode - This parameter shows group compatibility mode (v1, v2 and v3) for this
group on the specified interface.