Further testing shows other groups blocked correctly. I just can't seem to block 224.0.1.40 as the DSG shows. I wonder if there is some mechanism that prevents 224.0.1.40 from being filtered.
On Sat, Jul 24, 2010 at 11:33 AM, marc abel <[email protected]> wrote: > 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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