Configure IPv6 PIM-SSM Example

Network Requirements

The whole network runs the IPv6 PIM-SSM protocol.
PC is one receiver of Device3 stub network.
Run MLDv2 between Device3 and the stub network.

Network Topology

Networking of configuring IPv6 PIM-SSM

Figure 11-2 Networking of configuring IPv6 PIM-SSM

Configuration Steps

Step 1: Configure VLAN, and add the port to the corresponding VLAN (omitted).

Step 2: Configure the IPv6 address of the interface. (omitted)

Step 3: Enable the unicast route protocol OSPFv3 so that all devices in the network can communicate with each other.

#Configure Device1.

Device1#configure terminal
Device1(config)#ipv6 router ospf 100
Device1(config-ospf6)#router-id 1.1.1.1
Device1(config-ospf6)#exit
Device1(config)#interface vlan2
Device1(config-if-vlan2)#ipv6 router ospf 100 area 0
Device1(config-if-vlan2)#exit
Device1(config)#interface vlan3
Device1(config-if-vlan3)#ipv6 router ospf 100 area 0
Device1(config-if-vlan3)#exit
Device1(config)#interface vlan4
Device1(config-if-vlan4)#ipv6 router ospf 100 area 0
Device1(config-if-vlan4)#exit

#Configure Device2.

Device2#configure terminal
Device2(config)#ipv6 router ospf 100
Device2(config-ospf6)#router-id 2.2.2.2
Device2(config-ospf6)#exit
Device2(config)#interface vlan4
Device2(config-if-vlan4)#ipv6 router ospf 100 area 0
Device2(config-if-vlan4)#exit
Device2(config)#interface vlan5
Device2(config-if-vlan5)#ipv6 router ospf 100 area 0
Device2(config-if-vlan5)#exit

#Configure Device3.

Device3#configure terminal
Device3(config)#ipv6 router ospf 100
Device3(config-ospf6)#router-id 3.3.3.3
Device3(config-ospf6)#exit
Device3(config)#interface vlan3
Device3(config-if-vlan3)#ipv6 router ospf 100 area 0
Device3(config-if-vlan3)#exit
Device3(config0)#interface vlan5
Device3(config-if-vlan5)#ipv6 router ospf 100 area 0
Device3(config-if-vlan5)#exit
Device3(config)#interface vlan6
Device3(config-if-vlan6)#ipv6 router ospf 100 area 0
Device3(config-if-vlan6)#exit

#View the route table of Device3.

Device3#show ipv6 route 
Codes: C - Connected, L - Local, S - static, R - RIP, B - BGP, i-ISIS 
       U - Per-user Static route 
       O - OSPF, OE-OSPF External, M - Management 
 
L ::1/128 [0/0] 
     via ::, 2w6d:04:39:46, lo0
O 2001:1::/64 [110/2] 
     via fe80::201:7aff:fe62:bb7e, 00:00:24, vlan3
C  2001:2::/64 [0/0] 
     via ::, 00:01:05, vlan3
L 2001:2::2/128 [0/0] 
     via ::, 00:01:04, lo0
O 2001:3::/64 [110/2] via fe80::201:7aff:fe62:bb7e, 00:00:24, vlan3 
              [110/2] via fe80::201:7aff:fec0:525a, 00:00:04, vlan5
C  2001:4::/64 [0/0] 
     via ::, 00:00:49, vlan5
L 2001:4::1/128 [0/0] 
     via ::, 00:00:48, lo0
C 2001:5::/64 [0/0] 
     via ::, 00:00:43, vlan6
L 2001:5::1/128 [0/0] 
     via ::, 00:00:42, lo0

The viewing method of Device1 and device2 is the same as that of Device3, so the viewing process is omitted.

Step 4: Globally enable the IPv6 multicast forwarding and enable the multicast protocol IPv6 PIM-SM on the interface.

#Configure Device1.

Globally enable the IPv6 multicast forwarding and enable the multicast protocol IPv6 PIM-SM on the related interfaces.

Device1(config)#ipv6 multicast-routing
Device1(config)#interface vlan2
Device1(config-if-vlan2)#ipv6 pim sparse-mode
Device1(config-if-vlan2)#exit
Device1(config)#interface vlan3
Device1(config-if-vlan3)#ipv6 pim sparse-mode
Device1(config-if-vlan3)#exit
Device1(config)#interface vlan4
Device1(config-if-vlan4)#ipv6 pim sparse-mode
Device1(config-if-vlan4)#exit

#Configure Device2.

Globally enable the IPv6 multicast forwarding and enable the multicast protocol IPv6 PIM-SM on the related interfaces.

Device2(config)#ipv6 multicast-routing
Device2(config)#interface vlan4
Device2(config-if-vlan4)#ipv6 pim sparse-mode
Device2(config-if-vlan4)#exit
Device2(config)#interface vlan5
Device2(config-if-vlan5)#ipv6 pim sparse-mode
Device2(config-if-vlan5)#exit

#Configure Device3.

Globally enable the IPv6 multicast forwarding and enable the multicast protocol IPv6 PIM-SM on the related interfaces.

Device3(config)#ipv6 multicast-routing
Device3(config)#interface vlan3
Device3(config-if-vlan3)#ipv6 pim sparse-mode
Device3(config-if-vlan3)#exit
Device3(config)#interface vlan5
Device3(config-if-vlan5)#ipv6 pim sparse-mode
Device3(config-if-vlan5)#exit
Device3(config)#interface vlan6
Device3(config-if-vlan6)#ipv6 pim sparse-mode
Device3(config-if-vlan6)#exit

#View the information of the interface enabled with the IPv6 PIM-SM protocol on Device3 and the IPv6 PIM-SM neighbor information.

Device3#show ipv6 pim interface
PIM6 Interface Table: 
PIM6 VRF Name: Default
Total 4 Interface entries 
Total 0 External Interface entry 
Total 0 Sparse-Dense Mode Interface entry 
 
Interface    VIF Ver/ VIF Nbr DR   BSR   CISCO   Neighbor 
                 Index Mode Flag Count Pri Border Neighbor Filter
register_vif0   2     v2/S UP     
Address : fe80::201:7aff:fe5e:6d2d Global Address: ::                
 
vlan3      1     v2/S UP   1     1    FALSE FALSE     
Address : fe80::201:7aff:fe5e:6d2d        Global Address: 2001:2::2               DR: fe80::201:7aff:fe62:bb7e 
 
vlan5      3     v2/S UP   1     1    FALSE FALSE     
Address : fe80::201:7aff:fe5e:6d2e        Global Address: 2001:4::1               DR: fe80::201:7aff:fec0:525a 
 
vlan6      4     v2/S UP   0     1    FALSE FALSE     
Address : fe80::201:7aff:fe5e:6d2f        Global Address: 2001:5::1               DR: fe80::201:7aff:fe5e:6d2f 

Device3#show ipv6 pim neighbor
PIM6 Neighbor Table: 
PIM6 VRF Name: Default
Total 2 Neighbor entries 
 
Neighbor                   Interface    Uptime/Expires      Ver DR 
Address                                                     Priority/Mode
fe80::201:7aff:fe62:bb7e   vlan3        00:04:01/00:01:29   v2 1 / DR
fe80::201:7aff:fec0:525a   vlan5        00:04:03/00:01:39   v2 1 / DR

The viewing method of Device1 and device2 is the same as that of Device3, so the viewing process is omitted.

Step 5: Enable MLD on gigabitethernet0/0/2 of Device3.

#Configure Device3.

Enable MLD on vlan6 of Device3.

Device3(config)#interface vlan6
Device3(config-if-vlan6)#ipv6 mld enable
Device3(config-if-vlan6)#exit

#View the MLD information of Device3 interface vlan6.

Device3#show ipv6 mld interface vlan6
Interface vlan6 (Index 11) 
 MLD Enabled, Active 
 Querier: fe80::201:7aff:fe5e:6d2f (Self) 
 Default version: 2 
 Querier parameter:  
   Query interval is 125 seconds 
   Querier timeout is 255 seconds 
   Query response time is 10 seconds 
   Last member query response interval is 1 seconds 
   Last member query count is 2  
   Group Membership interval is 260 seconds 
   Robustness variable is 2

You can configure the MLD version running on the interface via ipv6 mld version.

Step 6: Configure IPv6 PIM-SSM on all devices; the multicast group range of the SSM service is FF3X::/32.

#Configure Device1.

Device1(config)#ipv6 pim ssm default

#Configure Device2.

Device2(config)#ipv6 pim ssm default

#Configure Device3.

Device3(config)#ipv6 pim ssm default

Step 7: Check the result.

#PC sends the MLDv2 member relation report of the specified source group to add to multicast group FF30::1; the specified multicast source is 2001:1::1.

#Multicast Server sends the multicast packets with multicast group FF30::1.

#View the multicast member table of Device3.

Device3#show ipv6 mld groups detail  
MLD Connected Group Membership
Total 1 Connected Groups 
Group    Interface   Uptime    Expires   V1-Expires Last Reporter
ff30::1  vlan6       00:26:42  not used  not used   fe80::210:94ff:fe00:1 
 Group mode : Include 
 TIB-A Count: 1 
 TIB-B Count: 0 
 
 TIB-A 
 Source list: (R - Remote, M - SSM Mapping) 
 Source       Uptime   Expires  Flags 
 2001:1::1    00:05:55 00:03:41 R

#View the multicast route table of Device3.

Device3#show ipv6 pim mroute
IP Multicast Routing Table:
PIM6 VRF Name: Default 
Total 0 (*,*,RP) entry 
Total 0 (*,G) entry
Total 1 (S,G) entry
Total 0 (S,G,rpt) entry
Total 0 FCR entry 
Up timer/Expiry timer 
 
(2001:1::1, ff30::1) 
Up time: 00:06:48
KAT time: 00:02:30 
RPF nbr: fe80::201:7aff:fe62:bb7e
RPF idx: vlan3 
SPT bit: TRUE
Flags: 
  JOIN DESIRED 
Upstream State: JOINED 
  Local interface list: 
    vlan6 
  Joined interface list: 
  Asserted interface list: 
  Outgoing interface list: 
   vlan6 
  Packet count 275560

#PC can only receive the multicast service packet with multicast group FF30::1 sent by Source.

The viewing method of Device1 and device2 is the same as that of Device3, so the viewing process is omitted.
The default multicast group range of IPv6 PIM-SSM is FF3X::/32. You can modify the multicast group range of the IPv6 PIM-SSM service via the command ipv6 pim ssm range.
For the multicast group G meeting the SSM condition, the multicast route table does not generate the (*,G) entry, but just generate the (S,G) entry.

Configure IPv6 PIM-SSM Example

Network Requirements

Network Topology

Configuration Steps

Step 1: Configure VLAN, and add the port to the corresponding VLAN (omitted).

Step 2: Configure the IPv6 address of the interface. (omitted)

Step 3: Enable the unicast route protocol OSPFv3 so that all devices in the network can communicate with each other.

Step 4: Globally enable the IPv6 multicast forwarding and enable the multicast protocol IPv6 PIM-SM on the interface.

Step 5: Enable MLD on gigabitethernet0/0/2 of Device3.

Step 6: Configure IPv6 PIM-SSM on all devices; the multicast group range of the SSM service is FF3X::/32.

Step 7: Check the result.

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