Enable IGMP Snooping | IGMP specifies how a host can register a router in order to receive specific multicast traffic. |
| IGMP Snooping allows the NB9/NB9W to capture IGMP frames. When your NB9/NB9W |
| hears an IGMP report from a host for a given multicast group it adds the host’s port number |
| for that group. When the NB9/NB9W hears an IGMP Leave, it removes the host’s port from |
| the table entry. |
| Without IGMP snooping, multicast traffic is treated in the same manner as broadcast traffic |
| - that is, it is forwarded to all ports. With IGMP snooping, multicast traffic of a group is |
| only forwarded to ports that have members of that group. IGMP Snooping generates no |
| additional network traffic, allowing you to significantly reduce multicast traffic passing |
| through your NB9/NB9W. |
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Save | Save the settings. |
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Save / Reboot | Save and reboot with the settings applied. |
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NB9/NB9W ADSL2+ VoIP Router | 47 |
YML790 Rev8 |
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