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IPV6 multicast ping not working

sachin30720041
Beginner
Beginner

Hello,

I am configuring ipv6 multicast in the below-shown setup. ospfv3 and PIM sparse-mode is enabled on all the routers and on all the interfaces of the router.

R1-----R2------(gi0/1)R3

  \                                 (gi0/0)

    \                                 |

      \                               |

           R6                      R4

               \                     |

                   \                |

                           R5

 

R3 is the RP. R6 joins FF08::1 multicast group and mroute entries are created from R6->R1->R2->R3.  

 

If the outgoing interface is gi0/1(interface pointing to R2) then ping works from R3.

R3#ping FF08::1 source lo0
Output Interface: Gigabitethernet0/1======>Gigabitethernet0/1 points to R2

Reply to request 0 received from 6::6, 359 ms

But If I ping from router R3 but give the output interface Gigabitethernet0/0(pointing to R4) then ping does not work. Why?


R3#ping FF08::1 source lo0
Output Interface: Gigabitethernet0/0

Request 0 timed out

 

Below is the configuration of all the routers.

iosr1
-------------------------------
ipv6 unicast-routing
ipv6 multicast-routing
ip multicast-routing


int gi0/0
ipv6 enable
ip address 100.10.20.1 255.255.255.0
ipv6 address 2001:face:12::1/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

int gi0/1
ipv6 enable
ip address 100.10.60.1 255.255.255.0
ipv6 address 2001:face:16::1/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

int lo0
ipv6 enable
ip address 1.1.1.1 255.255.255.255
ipv6 address 1::1/128
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

router ospfv3 1
router-id 1.1.1.1


iosr2
-------------------------------
ip multicast-routing
ipv6 unicast-routing
ipv6 multicast-routing

int gi0/0
ipv6 enable
ip address 100.10.20.2 255.255.255.0
ipv6 address 2001:face:12::2/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

int gi0/1
ipv6 enable
ip address 100.20.30.2 255.255.255.0
ipv6 address 2001:face:23::2/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

router ospfv3 1
router-id 2.2.2.2

int lo0
ipv6 enable
ip address 2.2.2.2 255.255.255.255
ipv6 address 2::2/128
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

iosr3
-------------------------------
ip multicast-routing
ipv6 unicast-routing
ipv6 multicast-routing

int gi0/0
ipv6 enable
ip address 100.30.40.3 255.255.255.0
ipv6 address 2001:face:34::3/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

int gi0/1
ipv6 enable
ip address 100.20.30.3 255.255.255.0
ipv6 address 2001:face:23::3/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

router ospfv3 1
router-id 3.3.3.3

int lo0
ipv6 enable
ip address 3.3.3.3 255.255.255.255
ipv6 address 3::3/128
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

iosr4
-------------------------------
ip multicast-routing
ipv6 unicast-routing
ipv6 multicast-routing

int gi0/0
ipv6 enable
ip address 100.30.40.4 255.255.255.0
ipv6 address 2001:face:34::4/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

int gi0/1
ipv6 enable
ip address 100.40.50.4 255.255.255.0
ipv6 address 2001:face:45::4/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

router ospfv3 1
router-id 4.4.4.4

int lo0
ipv6 enable
ip address 4.4.4.4 255.255.255.255
ipv6 address 4::4/128
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

iosr5
-------------------------------
ip multicast-routing
ipv6 unicast-routing
ipv6 multicast-routing

int gi0/1
ipv6 enable
ip address 100.40.50.5 255.255.255.0
ipv6 address 2001:face:45::5/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

int gi0/0
ipv6 enable
ip address 100.50.60.5 255.255.255.0
ipv6 address 2001:face:56::5/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

int lo0
ipv6 enable
ip address 5.5.5.5 255.255.255.255
ipv6 address 5::5/128
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

router ospfv3 1
router-id 5.5.5.5

ios6
-----------
ip multicast-routing
ipv6 unicast-routing
ipv6 multicast-routing

int gi0/1
ipv6 enable
ip address 100.10.60.6 255.255.255.0
ipv6 address 2001:face:16::6/64
no sh
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode

router ospfv3 1
router-id 6.6.6.6

int gi0/0
ipv6 enable
ip address 100.50.60.6 255.255.255.0
ipv6 address 2001:face:56::6/64
no sh
ip ospf 1 area 0
ip pim sparse-dense-mode

int lo0
ipv6 enable
ip address 6.6.6.6 255.255.255.255
ipv6 address 6::6/128
ospfv3 1 ipv6 area 0
ip pim sparse-dense-mode
ipv6 mld join-group FF08::1
 
----------
 

 

1 Reply 1

Harold Ritter
Cisco Employee
Cisco Employee

Hi @sachin30720041 ,

 

You need to configure the RP address on all devices using the following command, including on the RP itself.

 

ipv6 pim rp-address <RP ipv6 loopback interface address>

 

Regards, 

Harold Ritter
Sr Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
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