OT: Multicast Subscription per IP:Port

Dear All,

Can client subscribe to multi-casting server per port basis ? How can
we restrict multicast clients per port ?

e.g.

<CLIENT> ---------- <SWITCH> ------------- <ROUTING DOMAIN>
--------------- <SERVER>

Server has two multicast applications sending multicast out on
225.5.5.5:1000 and 225.5.5.5:2000.

When CLIENT subscribe for 225.5.5.5:2000, will CLIENT implicitly
receive 225.5.5.5:1000 packets also ?
If not, how can we configure per port restriction ?

Thanks

-- 
Lefe De Meedorf
Blogs and organic groups at http://www.ccie.net