120 Labs for Cisco CCNA 200-125 and CCENT Exams

Lab 82: Configure, Verify, and Troubleshoot Single-Area and Multi-Area OSPFv3 for IPv6

Lab Objective:

The objective of this lab exercise is for you to learn how to configure OSPF running IPv6.

Lab Purpose:

OSPFv3 will allow you to run a link-state routing protocol in your infrastructure when running IPv6. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to implement this OSPFv3 in the IPv6 world.

Certification Level:

This lab is suitable for ICND2 certification exam preparation.

Lab Difficulty:

This lab has a difficulty rating of 7/10.

Readiness Assessment:

When you are ready for your certification exam, you should complete this lab in no more than 20 minutes.

Lab Topology:

Please use the following topology to complete this lab exercise:

Task 1:

Configure hostnames on R1, R2, R3, and R4 as illustrated in the topology.

Task 2:

Configure each router with its respective IPv6 addresses and Gigabit interfaces, and make sure that your router is ready to route IPv6 traffic.

Note: You can select the Gigabit interface you want to use (Gig0/0 or Gig0/1) for any network shown in the diagram.

Task 3:

Configure OSPFv3 for IPv6 in the network as follows:

  • All the routers will be inside AS 100;
  • There are no IPv4 addresses at all so manually create a router ID for each router (different on each unit); and
  • Make sure that you advertise every network shown in the diagram (including Loopbacks) according to their respective Areas.

Task 4:

Make sure that you can ping from R2 Loopbacks to R4 Loopbacks to ensure that there is full connectivity.

Task 5:

To see the OSPF database, provide the following information from R1:

  • show ipv6 ospf neighbors
  • show ipv6 ospf database
  • show ipv6 route

Configuration and Verification

Task 1:

For reference information on configuring hostnames, please refer to earlier labs.

Task 2:

R1#conf t 
Enter configuration commands, one per line.  End with CTRL/Z. 

R1(config)#ipv6 unicast-routing 
R1(config)#int gig0/0 
R1(config-if)#ipv6 address 2001:2222:2222:2222::1/64 
R1(config-if)#no shut 
R1(config)#int gig0/1 
R1(config-if)#ipv6 address 2001:1111:1111:1111::1/64 
R1(config-if)#no shut 

R2(config)#ipv6 unicast-routing 
R2(config)#int gig0/0 
R2(config-if)#ipv6 address 2001:1111:1111:1111::2/64 
R2(config-if)#no shut 
R2(config)#int loopback1 
R2(config-if)#ipv6 address 2001:AAAA:AAAA:AAAA::1/64 
R2(config)#int loopback2 
R2(config-if)#ipv6 address 2001:BBBB:BBBB:CCCC::1/64 

R3(config)#ipv6 unicast-routing 
R3(config)#int gig0/0 
R3(config-if)#ipv6 address 2001:2222:2222:2222::2/64 
R3(config-if)#no shut 
R3(config)#int gig0/1 
R3(config-if)#ipv6 address 2001:3333:3333:3333::1/64 
R3(config-if)#no shut

R4(config)#ipv6 unicast-routing 
R4(config)#int gig0/0 
R4(config-if)#ipv6 address 2001:3333:3333:3333::2/64 
R4(config-if)#no shut 
R4(config)#int loopback1 
R4(config-if)#ipv6 address 2001:4444:4444:0001::1/64 
R4(config)#int loopback2 
R4(config-if)#ipv6 address 2001:4444:4444:0002::1/64 
R4(config)#int loopback3 
R4(config-if)#ipv6 address 2001:4444:4444:0003::1/64

Task 3:

R1(config)#ipv6 router ospf 100 
R1(config-rtr)#router-id 1.1.1.1 
R1(config)#int gig0/0 
R1(config-if)#ipv6 ospf 100 area 0 
R1(config)#int gig0/1 
R1(config-if)#ipv6 ospf 100 area 0 

R2(config)#ipv6 router ospf 100 
R2(config-rtr)#router-id 2.2.2.2 
R2(config)#int gig0/0 
R2(config-if)#ipv6 ospf 100 area 0 
R2(config)#int loop1 
R2(config-if)#ipv6 ospf 100 area 0 
R2(config)#int loop2 
R2(config-if)#ipv6 ospf 100 area 0 

R3(config)#ipv6 router ospf 100 
R3(config-rtr)#router-id 3.3.3.3 
R3(config)#int gig0/0 
R3(config-if)#ipv6 ospf 100 area 0 
R3(config)#int gig0/1
R3(config-if)#ipv6 ospf 100 area 1 

R4(config)#ipv6 router ospf 100 
R4(config-rtr)#router-id 4.4.4.4 
R4(config)#int gig0/0 
R4(config-if)#ipv6 ospf 100 area 1 
R4(config)#int loop1 
R4(config-if)#ipv6 ospf 100 area 1 
R4(config)#int loop2 
R4(config-if)#ipv6 ospf 100 area 1 
R4(config)#int loop3 
R4(config-if)#ipv6 ospf 100 area 1

Task 4:

R2#ping 2001:4444:4444:0002::1 source 2001:BBBB:BBBB:CCCC::1 

Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 2001:4444:4444:2::1, timeout is 2 seconds: 
Packet sent with a source address of 2001:BBBB:BBBB:CCCC::1 
!!!!! 
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/57/72 ms

This command won’t work on Packet Tracer so you will have to use an extended ping on that.

R4#ping 2001:AAAA:AAAA:AAAA::1 source 2001:4444:4444:0001::1 

Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 2001:AAAA:AAAA:AAAA::1, timeout is 2 seconds: 
Packet sent with a source address of 2001:4444:4444:1::1 
!!!!! 
Success rate is 100 percent (5/5), round-trip min/avg/max = 24/31/44 ms 
Distance: external 20 internal 200 local 200

Task 5:

R1#sh ipv6 ospf neighbor 

Neighbor ID     Pri  State    Dead Time  Interface ID    Interface 
3.3.3.3           1  FULL/DR  00:00:37   4               G0/0 
2.2.2.2           1  FULL/DR  00:00:30   4               G0/1 

R1#show ipv6 ospf database 

            OSPFv3 Router with ID (1.1.1.1) (Process ID 100) 

  Router Link States (Area 0) 

ADV Router      Age         Seq#        Fragment ID  Link count  Bits 
1.1.1.1         53          0x80000008  0            2           None 
2.2.2.2         76          0x80000005  0            1           B 
3.3.3.3         46          0x80000005  0            1           None 

  Net Link States (Area 0) 

ADV Router      Age         Seq#        Link ID    Rtr count 
2.2.2.2         87          0x80000001  4          2 
3.3.3.3         62          0x80000001  4          2 

  Inter Area Prefix Link States (Area 0) 

ADV Router      Age         Seq#          Prefix 
2.2.2.2         111         0x80000001  2001:3333:3333:3333::/64 
2.2.2.2         32          0x80000001  2001:4444:4444:3::1/128 
2.2.2.2         22          0x80000001  2001:4444:4444:1::1/128 
2.2.2.2         22          0x80000001  2001:4444:4444:2::1/128 

  Link (Type-8) Link States (Area 0) 

ADV Router      Age         Seq#        Link ID    Interface 
1.1.1.1         142         0x80000001  5          G0/1 
3.3.3.3         104         0x80000001  4          G0/0 
1.1.1.1         144         0x80000001  4          G0/0 
2.2.2.2         128         0x80000001  4          G0/1

  Intra Area Prefix Link States (Area 0) 

ADV Router      Age         Seq#        Link ID    Ref-lstype  Ref-LSID 
2.2.2.2         89          0x80000001  4096       0x2002      4 
3.3.3.3         64          0x80000003  0          0x2001      0
3.3.3.3         64          0x80000001  4096       0x2002      4 

R1#show ipv6 route 
IPv6 Routing Table - 11 entries 
Codes: C - Connected, L - Local, S - Static, R - RIP, B – BGP, 
       U - Per-user Static route, M - MIPv6, 
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, 
       O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, 
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, 
       D - EIGRP, EX - EIGRP external 

C   2001:1111:1111:1111::/64 [0/0] 
    via ::, G0/1 
L   2001:1111:1111:1111::1/128 [0/0] 
    via ::, G0/1 
C   2001:2222:2222:2222::/64 [0/0] 
    via ::, G0/0 
L   2001:2222:2222:2222::1/128 [0/0] 
    via ::, G0/0 
OI  2001:3333:3333:3333::/64 [110/20] 
    via FE80::C007:51FF:FE93:0, G0/0 
OI  2001:4444:4444:1::1/128 [110/20] 
    via FE80::C007:51FF:FE93:0, G0/0 
OI  2001:4444:4444:2::1/128 [110/20] 
    via FE80::C007:51FF:FE93:0, G0/0 
OI  2001:4444:4444:3::1/128 [110/20] 
    via FE80::C007:51FF:FE93:0, G0/0 
O   2001:AAAA:AAAA:AAAA::1/128 [110/10] 
    via FE80::C006:51FF:FE92:0, G0/1
O   2001:BBBB:BBBB:CCCC::1/128 [110/10] 
    via FE80::C006:51FF:FE92:0, G0/1
L   FF00::/8 [0/0] 
    via ::, Null0

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