NETGEAR GS728TS Admin Manual page 139

GS728TS, GS728TPS, GS752TS, and GS752TPS Gigabit Smart Switches
To configure IGMP Snooping:
1. Enable or disable IGMP Snooping on the switch.
• Enable. The switch snoops all IGMP packets it receives to determine which segments
should receive packets directed to the group address.
• Disable. The switch does not snoop IGMP packets.
2. Enable or disable the validation of IGMP IP headers.
• Enable. The switch checks the IGMP IP header for valid Router Alert option, ToS, and
TTL information.
• Disable. The switch does not check the IGMP IP header for Router Alert option, ToS,
and TTL information.
3. Specify whether to block unknown multicast addresses
• Enable. The switch drops all packets with an unknown multicast MAC address in the
destination field.
• Disable. The switch forwards multicast packets with an unknown multicast MAC
address in the destination field.
4. Click Apply to send the updated configuration to the switch. Configuration changes take
effect immediately.
5. Click Cancel to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch
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