I'm working on Vol 1 Lab 24 task 8 + 9 and can't reproduce what is shown in
the DSG. The task shows us applying an access list on F0/0 for R5,R6,R7 like
this:

access-list 11 deny 224.0.0.0 15.255.255.254
access-list 11 permit 224.0.0.1 15.255.255.255
int f0/0
ip igmp access-group 11

Then the solution guide show the output of Debug ip igmp. In the output they
show 240.0.0.0 blocked on fastethernet 0/0 like this:

Jul 24 16:14:34.903: IGMP(*): Group 224.0.1.40 access denied on
Fastethernet0/0

I can not get my routers to produce this line. My outputs seem to be keyed
to the loopbacks. If I apply the access-list to my loopback interface then I
will indeed see this line:

Jul 24 16:14:34.903: IGMP(*): Group 224.0.1.40 access denied on loopback0

What am I missing?

Here are the relevant parts of my config on R7 (R6 and R5 are identical)

hostname R7

ip multicast-routing

interface Loopback0
 ip address 200.0.0.7 255.255.255.255
 ip pim sparse-mode
!
interface FastEthernet0/0
 ip address 150.100.220.7 255.255.255.0
 ip pim sparse-mode
 ip igmp access-group 11
 duplex auto
 speed auto
!
interface FastEthernet0/1
 ip address 150.100.221.7 255.255.255.0
 ip pim sparse-mode
 duplex auto
 speed auto

ip pim autorp listener
!
access-list 11 deny   224.0.0.0 15.255.255.254
access-list 11 permit 224.0.0.0 15.255.255.255
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