ospf-ipv6 authentication

LAB10: OSPF – IPv6

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LAB 10: Diagram

Note: This Lab was developed on Cisco IOS Version15.2(4) M1 ADVENTERPRISEK9-M. 

LAB 10: IPv6 OSPF Authentication:

Task 1: Configure IPv6 OSPF Authentication

• Enter the interface where authentication is required and select the encryption mode:

R1:

interface s2/0

ipv6 ospf authentication ipsec spi 256 md5 0123456789ABCDEF0123456789ABCDEF

exit

• Enable IPv6 OSPF authentication on both the neighbors:

R2:

interface s2/0

ipv6 ospf authentication ipsec spi 256 md5 0123456789ABCDEF0123456789ABCDEF

exit

Task 2:  Verification:

• Verification of authentication by following command:

R1#show run

! (To display the contents of the currently running configuration file or the configuration the show running-config command in privileged EXEC mode.)

 interface Serial2/0

 ipv6 address 12::/64 eui-64

 ipv6 ospf authentication ipsec spi 256 md5 0123456789ABCDEF0123456789ABCDEF

 ipv6 ospf 1 area 1

R2#show run

 interface Serial2/0

 ipv6 address 12::/64 eui-64

 ipv6 ospf authentication ipsec spi 256 md5 0123456789ABCDEF0123456789ABCDEF

 ipv6 ospf 1 area 1

 

• Verify OSPF neighborship by following command:

 

R1#clear ipv6 ospf process

R2#clear ipv6 ospf process

! (Will flush current IPv6 OSPF process and initiate fresh OSPF process.)

 

 

R1#show ipv6 ospf neighbors

! (Gives list of OSPF neighbors)

 

OSPFv3 Router with ID (11.0.3.1) (Process ID 1)

 

Neighbor ID     Pri        State         Dead Time      Interface ID      Interface

22.0.3.2          0             FULL/ -      00:00:32                11                Serial2/0

 

R2#show ipv6 ospf neighbors

! (Gives list of OSPF neighbors)

 

OSPFv3 Router with ID (22.0.3.2) (Process ID 2)

 

Neighbor ID     Pri       State          Dead Time       Interface ID         Interface

33.0.3.3             1      FULL/DR       00:00:39                 3                 Ethernet0/0

11.0.3.1             0      FULL/ -          00:00:39               11                 Serial2/0

 

(OSPF neighbors will authenticate the key and if key matches, OSPF neighborship will be formed. Fresh IPv6 OSPF neighborship can be verified in IPv6 OSPF neighbor table.)