NETGEAR AV Line M4250 GSM4210PX 8-Port Gigabit PoE+ Compliant Managed AV Switch with SFP (220W) - Manual (Page 399)

7. Select one or more interfaces by taking one of the following actions:
• To configure a single interface, select the check box associated with the interface,
or type the interface number in the Go To Interface field and click the Go button.
• To configure multiple interfaces with the same settings, select the check box
associated with each interface.
• To configure all interfaces with the same settings, select the check box in the
heading row.
8. In the TTL Threshold field, specify the threshold below which a multicast data packet
is not forwarded from the interface.
Enter a number between 0 and 255. The default is 1. If you enter 0, all multicast
packets for the interface are forwarded. You must configure at least one router
interface before this field is available.
9. Click the Apply button.
Your settings are saved.
10. To save the settings to the running configuration, click the Save icon.
IGMP for IPv4 multicast routing
You can configure the Internet Group Management Protocol (IGMP) settings and view
the IGMP statistics.
IGMP snooping lets the switch to forward multicast traffic intelligently. Based on the
IGMP query and report messages, the switch forwards traffic only to the ports that
request the multicast traffic rather than to all ports.
IGMP snooping helps to optimize multicast performance and is especially useful for
bandwidth-intensive IP multicast applications such as online media streaming.
Configure the global IGMP settings for the switch
You can configure the global IGMP settings for the switch, as opposed to the IGMP
settings for an interface.
To configure global IGMP settings for the switch:
1. Launch a web browser.
2. In the address field of your web browser, enter the IP address of the switch.
The login page displays.
3. Click the Main UI Login button.
Main User Manual 399 Configure Multicast Routing
AV Line of Fully Managed Switches M4250 Series Main User Manual