For RP discovery. Garry Baker showed me that it has to do with last IGMP reporter for the group
R7(config-if)#do show ip igmp mem Channel/Group Reporter Uptime Exp. Flags Interface *,224.0.1.39 200.0.0.7 00:06:21 02:25 2LA Lo0 *,224.0.1.40 200.0.0.7 00:04:17 02:28 2LA Lo0 Now if I shut down lo0 do show ip igmp mem Channel/Group Reporter Uptime Exp. Flags Interface *,224.0.1.39 150.100.220.7 02:13:16 02:51 2LA Fa0/0 *,224.0.1.40 150.100.220.7 00:00:08 stop 2LA Fa0/0 and now I start seeing the filtering happen. I guess I am still a bit deficient in my understanding of the RP process because seemingly the RP traffic to group 224.0.1.40 would be coming in from interface f0/0 but maybe since the source of the join was lo0 that is why. On Sat, Jul 24, 2010 at 12:36 PM, Steve Shaw <[email protected]> wrote: > Marc, when would you see 224.0.1.40 in your network? > > On Jul 24, 2010 1:27 PM, "marc abel" <[email protected]> wrote: > > 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 L... > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
