Configuring Igmp Proxy For Multicast Stub Routing Support - HP 7102dl - ProCurve Secure Router Configuration Manual

Configuring IGMP Proxy for Multicast
Stub Routing Support
You should not use IGMP proxy for multicast support unless your ProCurve
Secure Router acts as a stub router. (Even when your router is a stub router,
it can be a good idea to enable a multicast routing protocol such as PIM-SM.)
A stub router is a router in a stub network. When a WAN router, such as the
ProCurve Secure Router, has a single connection to a remote, central site, it
usually acts as a stub router: it does not receive traffic for any network except
local ones.
A central, non-stub site would provide the multicast routers and sources. The
stub router simply needs to be able to forward multicasts that arrive on the
single WAN interface to stub networks on which the appropriate host network
exists.
As an example, your organization's headquarters has a streaming video server.
Hosts in the local stub network run the corresponding video client, which join
the correct multicast group. You would configure the Ethernet interface on
the ProCurve Secure Router to be a downstream interface. It would request
IGMP reports from hosts in the local networks. The router would then forward
these reports through the upstream WAN interface to a helper address and
towards the multicast source, which is the streaming video server. This server
would then send video packets towards the local router, which would forward
them on to the LAN.
To configure the ProCurve Secure Router to receive multicasts, you must
configure IGMP proxy. Complete these steps:
1. Enable IP multicast routing.
2. Set the global multicast helper address.
3. Determine which interfaces are downstream interfaces and which are
upstream interfaces.
4. Configure one or more downstream interfaces:
a. Enable and configure the IGMP agent.
b. Enable multicast forwarding.
5. Configure an upstream interface:
a. Enable multicast forwarding.
b. Enable IGMP proxy.
Configuring Multicast Support for a Stub Network

Configuring IGMP Proxy for Multicast Stub Routing Support

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