multicast package - tutorial ?

Hi,

I would like to use the click router to connect to heterogenous multicast
protocols.

The first step would be to use the click router to connect 2 homogenous
multicast protocols. Any tips or pointers on how to configure the click
configuration to accomplish this? I've taken a look at the source (
https://github.com/kohler/click-packages/tree/master/multicast), though am
stuck on the pimforwardingtable, ipmulticasttable, and how to properly
configure click?

So far I have
require(multicast)

mct::IPMulticastTable("pimctl");
mcc::IPClassifier(224.0.0.0/4 and ip proto udp, ip proto igmp, -);
mcc[0] -> mct;


Though receive an error
multi.click:4: ‘mcc :: IPClassifier’ input 0 unused
multi.click:3: ‘mct :: IPMulticastTable’ output 0 unused
multi.click:3: ‘mct :: IPMulticastTable’ output 1 unused
Router could not be initialized!


Thanks in advance,
Josh