3 configuring igmp – ZyXEL Communications XGS-4526 User Manual
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Chapter 33 IGMP
XGS-4526 User’s Guide
302
33.3 Configuring IGMP
Click IP Application > IGMP in the navigation panel to display the screen as
shown next. Each entry in the table is automatically created when you configure a
new IP domain in the IP Setup screen (refer to
Figure 158 IP Application > IGMP
The following table describes the labels in this screen.
Table 104 IP Application > IGMP
LABEL
DESCRIPTION
Active
Select this check box to enable IGMP on the Switch.
Note: You cannot enable both IGMP snooping and IGMP at the same
time. Refer to
for more information on
IGMP snooping.
Unknown
Multicast
Frame
Specify the action to perform when the Switch receives an unknown
multicast frame. Unknown multicast frames are addressed to multicast
groups for which the Switch has not recorded any group members. Select
Drop to discard the frame(s). Select Flooding to send the frame(s) to all
ports.
Index
This field displays an index number of an entry.
Network
This field displays the IP domain configured on the Switch.
for more information on configuring IP
domains.
Version
Select an IGMP version from the drop-down list box. The choices are IGMP-
v1, IGMP-v2, IGMP-v3 and None.
Generally, if you want to enable IGMP on the Switch, you should choose
IGMP-v3 as it is compatible with older versions. Choose an earlier version of
IGMP (IGMP-v2 or IGMP-v1) if the multicast hosts on your network can not
recognize IGMP version 3 or version 2 Query messages.
Apply
Click Apply to save your changes to the Switch’s run-time memory. The
Switch loses these changes if it is turned off or loses power, so use the Save
link on the top navigation panel to save your changes to the non-volatile
memory when you are done configuring.
Cancel
Click Cancel to begin configuring this screen afresh.