Advanced Technology Labs - Initial Configurations Missing IPv6 Addresses

I am working off of a set of configurations which I have modified to work on IOL, so I suspected that I mangled one of the configs when an interface was missing an ipv6 address.

I just redownloaded the initial configurations from the INE workbook "CCIE R&S v5 Topology Diagrams & Initial Configurations" to verify that the configuration was incorrect before I modified it.

Here is what appears to be incorrect (please let me know if I am mistaken):



  • CCIE Routing & Switching v5 Workbook - CCIE R&S v5 Advanced Technology Labs - IPv6 - OSPFv3
  • Initial configuration (ospfv3.initial)



  • "Configure OSPFv3 on VLAN146 interfaces of R1, R4, and R6"



  • The 146 vlan interfaces for routers 1, 4 and 6 do not appear to have ipv6 addresses in the startup configuration:


interface GigabitEthernet1.146

 encapsulation dot1q 146

 ip address

 !ipv6 address MISSING


R1(config)#int GigabitEthernet1.146

R1(config-subif)#ipv6 ospf 1 area 0

% OSPFv3: IPV6 is not enabled on this interface


Appologies for starting a new thread, but this appeared to be mentioned here before:

FYI on OSPFv3 Lab


ATC Lab: EIGRPv6 - Initial configs incorrect

"I think their may be issues with all of the IPV6 configs.  I see the same issues in OSPFv3 initial configs."


Thanks for looking into this,



  • The task was accomplished with the "ipv6 enable" command on the vlan 146 interfaces. The OPSFv3 lab doesn't require explicity configured global unicast addresses, as the IGP uses the link local.

    That being said, the task verbiage could be clearer with something to suggest the requirement to use "ipv6 enable."



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