Manage Igmpv3 Ip Header Validation - NETGEAR GS908E User Manual

8-Port Gigabit Ethernet Smart Managed Plus Switch Model GS908E
5. From the menu on the left, select MULTICAST.
The MULTICAST page displays.
6. Enable or disable the blocking of unknown multicast traffic by clicking the button in the Block Unknown
Multicast Address section.
When the blocking of unknown multicast traffic is enabled, the button displays blue.
7. Click the APPLY button.
Your settings are saved.

Manage IGMPv3 IP Header Validation

You can enable IGMPv3 IP header validation so that the switch inspects whether IGMPv3 packets conform
to the IGMPv3 standard. By default, IGMPv3 IP header validation is disabled. If IGMPv3 IP header validation
is enabled, IGMPv3 messages must include a TTL of 1 and a ToS byte of 0xC0 (Internetwork Control). In
addition, the router alert IP option (9404) must be set.
Note If IGMPv3 IP header validation is enabled, switch does not drop IGMPv1 and IGMPv2
traffic but processes this traffic normally.
To manage IGMPv3 IP header validation:
1. Open a web browser from a computer that is connected to the same network as the switch or to the
switch directly through an Ethernet cable.
2. Enter the IP address that is assigned to the switch.
The login page displays.
3. Enter the switch password.
The default password is password. The password is case-sensitive.
The HOME page displays.
4. From the menu at the top of the page, select SWITCHING.
The Quality of Service (QoS) page displays.
5. From the menu on the left, select MULTICAST.
The MULTICAST page displays.
6. Enable or disable IGMPv3 IP header validation by clicking the button in the Validate IGMPv3 IP Header
section.
When IGMPv3 IP header validation is enabled, the button displays blue.
7. Click the APPLY button.
Your settings are saved.
Manage the Switch in Your Network
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