Any thoughts on providing multicast support on m0n0?  Here in the UK 
there is quite a big trial of multicast tv/radio and a number of ISPs 
(inlcuding mine) are providing multicast support.  My chaps are running 
IGMP and PIM-SM (i can see the multicasts being filtered by the default 
deny rule on the WAN interface).

I suppose in the simplest sense I need to pass IGMP though the m0n0 to 
the LAN, although it might be interesting to play with PIM.  There 
doesn't seem to be anything built into m0n0 - does anybody know any 
different?

Peter