What you are asking..... Multicast application in term of???

if you configure to multicast routing::::

Need following commands at least:

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FOR DENSE MODE ONLY

ip multicast-routing (Glocal configuration mode)

interface fastethernet (Interface in which you want to enable multicast)

ip address {IP address} {Subnet mask}

ip pim dense-mode

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IN PIM SPARSE MODE

ip multicast-routing (Glocal configuration mode)

ip pim rp-address {this is the router name} {IP address}

EX: ip pim rp-address 10.10.10.1

interface fastethernet0/0

ip pim sparse-mode

You can user either dense mode or sparse mode.

Also i am attaching documet for you.

Regards,

Dharmesh Purohit