Configuring Source Specific Multicast

SSM Configuration Task List

compiled with the HSIL will then dynamically bind to the newest version of the HSIL, which should support the check for IGMPv3 in the operating system kernel. Upgrading the HSIL can be done independently of upgrading the application itself.

SSM Configuration Task List

To configure SSM, perform the tasks described in the following sections. The tasks in the first section are required; the tasks in the remaining section are optional.

Configuring SSM (Required)

Monitoring SSM (Optional)

Configuring SSM

To configure SSM, use the following commands beginning in global configuration mode:

 

Command

Purpose

Step 1

 

 

Router(config)# ip pim ssm [default range

Defines the SSM range of IP multicast addresses.

 

access-list]

 

Step 2

 

 

Router(config)# interface type number

Selects an interface that is connected to hosts on which

 

 

IGMPv3, IGMP v3lite, and URD can be enabled.

Step 3

 

 

Router(config-if)# ip pim {sparse-mode

Enables PIM on an interface. You must use either sparse mode

 

sparse-dense-mode}

or sparse-dense mode.

Step 4

 

 

Router(config-if)# ip igmp version 3

Enables IGMPv3 on this interface. The default version of IGMP

 

 

is set to Version 2.

 

or

or

 

Router(config-if)# ip igmp v3lite

Enables the acceptance and processing of IGMP v3lite

 

 

membership reports on an interface.

 

or

or

 

Router(config-if)# ip urd

Enables interception of TCP packets sent to the reserved URD

 

 

port 465 on an interface and processing of URD channel

 

 

subscription reports.

 

 

 

Monitoring SSM

To monitor SSM, use the following commands in privileged EXEC mode, as needed:

Command

Purpose

 

 

 

Router#

show ip igmp groups detail

Displays the (S, G) channel subscription through IGMPv3,

 

 

IGMP v3lite, or URD.

 

 

 

Router#

show ip mroute

Displays whether a multicast group supports SSM service or

 

 

whether a source-specific host report was received.

 

 

 

Cisco IOS IP Configuration Guide

IPC-467

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Cisco Systems 78-11741-02 manual SSM Configuration Task List, Configuring SSM, Monitoring SSM, IPC-467