Free CCNA Lab Configuring IPV6 OSPF

In this Free CCNA Lab you will configure three routers in a simple IPv6 configuration. Multiarea routing will be established using OSPF with three areas one of them a totaly stubby area. Finally you will use the Show and Ping commands verify and test the configuration and connectivity of the network.


  • Enable IPv6 Unicast Routing.
  • Configure IPv6 addresses.
  • Configure OSPF.
  • Verify the IPv6 configuration.

Version 3 of OSPF continues the trend of the routing protocols having many similarities with their IPv4 versions. The foundation of OSPF remains the same—it is still a link-state routing protocol that divides an entire internetworks or autonomous system into areas, making a hierarchy. In OSPF version 2, the router ID (RID) is determined by the highest IP addresses assigned to the router (or you could assign it).

In version 3, you assign the RID, area ID, and link-state ID, which are all still 32-bit values but are not found using the IP address anymore because an IPv6 address is 128 bits. Changes regarding how these values are assigned, along with the removal of the IP address information from OSPF packet headers, makes the new version of OSPF capable of being routed over almost any Network layer protocol!

Adjacencies and next-hop attributes now use link-local addresses, and OSPFv3 still uses multicast traffic to send its updates and acknowledgments, with the addresses FF02::5 for OSPF routers and FF02::6 for OSPF-designated routers. These new addresses are the replacements for and, respectively.

Other, less flexible IPv4 protocols don’t give us the ability that OSPFv2 does to assign specific networks and interfaces into the OSPF process—however, this is something that is still configured under the router configuration process. And with OSPFv3, just as with the other IPv6 routing protocols we have talked about, the interfaces and therefore the networks attached to them are configured directly on the interface in interface configuration mode
Configuring IPV6 OSPFv3 Routing:

  1. enable 
  2. configure terminal
  3. ipv6 unicast-routing
  4. ipv6 router ospf process-id

Enabling OSPFv3 on an Interface:

  1. enable 
  2. configure terminal 
  3.  interface type number 
  4.  ospfv3 process-id area area-ID {ipv4 | ipv6} [instance instance-id] or ipv6 ospf process-id area area-id [instance instance-id]

Verifying OSPFv3 Configuration and Operation:

  1. enable 
  2.  show ipv6 ospf [process-id] [area-id] interface [interface-type interface-number] 
  3.  show ipv6 ospf [process-id] [area-id]

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