W
EB
S
OFTWARE
C
ONFIGURATION
R
EVISED
2018-09-21
IGMP
D
RAWING
N
O
. LP0991-G
2-54
N-Tron
®
Series NT24K
®
Software Manual
Known group multicast addresses are learned from dynamic IGMP Snooping operations. If IGMP is enabled and a
port is a router port, then having RFilter enabled will stop IGMP group data from egressing on the port unless a join
to that specific IGMP group has come into the port. IGMP controls (Join, Leave, Query) are still sent.
The Router Multicast Data Filter is enabled for all ports by default. Router ports do not get data frames with known
multicast destination addresses unless a join for that specific multicast address has been received on that port.
Join overrides an RFilter.
If RFilter is disabled, the router ports get data frames with known multicast destination addresses.
RFilter can be set for individual ports: any, all or none. For each port, RFilter will have an impact only if that port is
manually or dynamically chosen as a router port.
Click on the
Modify
button to make changes to the IGMP RFilter Configuration. The following dialog window will
appear:
From this dialog window, the administrator selects which ports to identify as RFilter ports and can view all possible
ports (Modules), currently installed ports or currently linked up ports. Click on the
Update
button when done with
required changes. To save the changes made, return to the Configuration menu and click on the
Save
button.
2.17.4
Routers
The Routers dialog window displays a list of the following:
Router IP:
Auto-detected router IP address.
Port Name:
The descriptive name of the port.
VLAN ID:
VLAN in which the Router IP is assigned. The range is 1 - 4094.
