Configuring the Network
IGMP
SRP 521 VoIP Gateway Administration Guide
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REVIEW DRAFT — CISCO CONFIDENTIAL
IGMP
Internet Group Multicast Protocol (IGMP) is used to establish membership in a
multicast group and is commonly used for multicast streaming applications. For
example, you may have Internet Protocol Television (IPTV) with multiple setup
boxes on the same local network. These setup boxes have different video streams
running simultaneously, so you should use the IGMP feature of the gateway.
STEP 1
Click Network Setup on the tab and then click IGMP in the navigation pane. The
IGMP page appears.
STEP 2
Select the version you want to support, IGMP v1, IGMP v2, or IGMP v3. If you are
not sure which version to select, use the default setting, IGMP v2.
STEP 3
If you want to allow multicast traffic through the gateway for your multimedia
application devices, use the default setting, Enabled. Otherwise, select Disabled.
STEP 4
If you use IPTV applications and want to allow immediate channel swapping or
flipping without lag or delays, select Enabled . Otherwise, use the default setting,
Disabled.
STEP 5
Click Submit to save your settings.