Last Updated on July 31, 2021 by Admin 1
Your company has a policy of creating all configurations in text files, checking the files, and then applying the configurations to the devices. Your assistant has presented you with the following partial configuration that she plans to execute on a router:interface S0/0/1ipv6 address 2001:610:FFFF:1::1/64ipv6 ospf 100 area 0ipv6 router ospf 100
router-id 10.1.1.6The configuration is supposed to accomplish the following:Enable IPv6 routing
Assign a router ID
Assign an IPv6 address to the interface
Place the interface in OSPF area 0
Which step does this configuration NOT complete?
- Enable IPv6 routing
- Assign a router ID
- Assign an IPv6 address to the interface
- Place the interface in OSPF area 0
Explanation:
The configuration indicates all steps are complete except for globally enabling IPv6 routing. If that had been done, the configuration output would have reflected it under the interface as follows:interface S0/0/1
ipv6 address 2001:610:FFFF:1::1/64
ipv6 ospf 100 area 0
ipv6 enableipv6 router ospf 100
router-id 10.1.1.6Prior to configuring OSPFv3 on an interface, it must be enabled globally. OSPFv3 is an OSPF version specific to IPv6. The following commands will globally enable OSPF v3. It will then be reflected by the ipv6 enable statement under the interface when viewing the configuration as shown in the fourth line of the output above.Router5(config)# ipv6 unicast-routing
Router5(config)# ipv6 ospf 100
Router5(config-rtr)# router-id 10.1.1.6The problem is not the router ID. The configuration in the scenario does assign a router ID, as indicated by these lines:ipv6 router ospf 100
router-id 10.1.1.6The problem is not the IPv6 address. The configuration does assign an IPv6 address to the interface, as indicated by these lines:interface S0/0/1
ipv6 address2001:610:FFFF:1::1/64OSPF area 0 is not the problem. The configuration does place the interface in OSPF area 0, as indicated by these lines:interface S0/0/1
ipv6 ospf 100 area 0
The configuration indicates all steps are complete except for globally enabling IPv6 routing. If that had been done, the configuration output would have reflected it under the interface as follows:interface S0/0/1
ipv6 address 2001:610:FFFF:1::1/64
ipv6 ospf 100 area 0
ipv6 enableipv6 router ospf 100
router-id 10.1.1.6Prior to configuring OSPFv3 on an interface, it must be enabled globally. OSPFv3 is an OSPF version specific to IPv6. The following commands will globally enable OSPF v3. It will then be reflected by the ipv6 enable statement under the interface when viewing the configuration as shown in the fourth line of the output above.Router5(config)# ipv6 unicast-routing
Router5(config)# ipv6 ospf 100
Router5(config-rtr)# router-id 10.1.1.6The problem is not the router ID. The configuration in the scenario does assign a router ID, as indicated by these lines:ipv6 router ospf 100
router-id 10.1.1.6The problem is not the IPv6 address. The configuration does assign an IPv6 address to the interface, as indicated by these lines:interface S0/0/1
ipv6 address2001:610:FFFF:1::1/64OSPF area 0 is not the problem. The configuration does place the interface in OSPF area 0, as indicated by these lines:interface S0/0/1
ipv6 ospf 100 area 0
Objective:
Layer 3 Technologies
Sub-Objective:
Configure and verify OSPF for IPv6