C
HAPTER
10
| Advanced Configuration
IGMP Proxy Configuration
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◆IP ToS — Displays the selected IP Type of Service.
◆WAN 802.1p — Displays the 802.1p value associated with the WAN
port.
IGMP PROXY CONFIGURATION
Multicasting is useful when the same data needs to be sent to more than
one host. Using multicasting as opposed to sending the same data to the
individual hosts uses less network bandwidth. The multicast feature also
enables you to receive multicast video stream from multicast servers.
IP hosts use Internet Group Management Protocol (IGMP) to report their
multicast group memberships to neighboring routers. Similarly, multicast
routers use IGMP to discover which of their hosts belong to multicast
groups. This device supports IGMP proxy that handles IGMP messages.
When enabled, this device acts as a proxy for a LAN host making requests
to join and leave multicast groups, or a multicast router sending multicast
packets to multicast group on the WAN side.
Figure 72: IGMP Configuration
The following items are displayed on this pages:
◆IGMP Proxy — Enables IGMP proxy. When enabled, the upstream
interface acts as a host interface, sending query messages periodically
to the downstream interfaces, sending join and leave messages to the
upstream multicast router when a first join or last leave message is
received from a downstream interface, and sending membership
reports in response to query messages from the multicast router.
◆Proxy Interface — Specifies the upstream WAN interface on which to
implement IGMP proxy.
N
OTE
:
The IGMP Proxy feature is not supported in the current software
release.