714 | Multicast Features
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Figure 33-2. Preventing a Host from Joining a Group
R1
R2
R3
Source 1
10.11.5.2
Receiver 2
10.11.4.2
Receiver 1
10.11.3.2
Group: 239.0.0.1, 239.0.0.2
1/31
3/11
2/11
2/31 3/21
interface Vlan 300
ip pim sparse-mode
ip address 10.11.3.1/24
untagged GigabitEthernet 1/1
no shutdown
interface GigabitEthernet 1/21
ip pim sparse-mode
ip address 10.11.12.1/24
no shutdown
interface GigabitEthernet 1/31
ip pim sparse-mode
ip address 10.11.13.1/24
no shutdown
interface GigabitEthernet 2/1
interface GigabitEthernet 2/11
ip pim sparse-mode
ip address 10.11.12.2/24
no shutdown
interface GigabitEthernet 3/11
ip pim sparse-mode
ip address 10.11.13.2/24
no shutdown
interface GigabitEthernet 3/21
ip pim sparse-mode
ip address 10.11.23.2/24
no shutdown
interface GigabitEthernet 2/31
ip pim sparse-mode
ip address 10.11.23.1/24
no shutdown
3/1
ip multicast-routing
ip pim rp-address 10.11.12.2 group-address 224.0.0.0/4
router rip
network 10.0.0.0
1/21
ip igmp snooping enable
interface Vlan 400
ip pim sparse-mode
ip address 10.11.4.1/24
untagged GigabitEthernet 1/2
ip igmp access-group igmpjoinfilR2G2
no shutdown
interface GigabitEthernet 3/1
ip pim sparse-mode
ip address 10.11.5.1/24
no shutdown
RP
Group: 239.0.0.1, 239.0.0.2
R1(conf-if-vl-300)# do show ip pim tib
PIM Multicast Routing Table
Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned,
R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT,
M - MSDP created entry, A - Candidate for MSDP Advertisement
K - Ack-Pending State
Timers: Uptime/Expires
Interface state: Interface, next-Hop, State/Mode
(*, 239.0.0.1), uptime 00:00:07, expires 00:00:00, RP 10.11.12.2, flags: S
Incoming interface: GigabitEthernet 1/21, RPF neighbor 10.11.12.2
Outgoing interface list:
Vlan 300 Forward/Sparse 00:00:07/Never
(*, 239.0.0.2), uptime 00:01:10, expires 00:00:00, RP 10.11.12.2, flags: S
Incoming interface: GigabitEthernet 1/21, RPF neighbor 10.11.12.2
Outgoing interface list:
Vlan 300 Forward/Sparse 00:01:10/Never
R1(conf-if-vl-400)# do show ip pim tib
PIM Multicast Routing Table
Flags: D - Dense, S - Sparse, C - Connected, L - Local, P - Pruned,
R - RP-bit set, F - Register flag, T - SPT-bit set, J - Join SPT,
M - MSDP created entry, A - Candidate for MSDP Advertisement
K - Ack-Pending State
Timers: Uptime/Expires
Interface state: Interface, next-Hop, State/Mode
(*, 239.0.0.1), uptime 00:00:06, expires 00:00:00, RP 10.11.12.2, flags: SCJ
Incoming interface: GigabitEthernet 1/21, RPF neighbor 10.11.12.2
Outgoing interface list:
Vlan 400 Forward/Sparse 00:00:06/Never
R1(conf)#do show run acl
!
ip access-list extended igmpjoinfilR2G2
seq 5 permit ip any host 239.0.0.1
239.0.0.1
239.0.0.2
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