You manage the EIGRP subnet in your organization. You have enabled EIGRP for IPv6 on all the routers in the EIGRP AS 355 using the following commands on all the routers:

You manage the EIGRP subnet in your organization. You have enabled EIGRP for IPv6 on all the routers in the EIGRP AS 355 using the following commands on all the routers:

Last Updated on July 31, 2021 by Admin 1

You manage the EIGRP subnet in your organization. You have enabled EIGRP for IPv6 on all the routers in the EIGRP AS 355 using the following commands on all the routers:

The ipv6 unicast-routing command in global configuration mode

The interface command in global configuration mode

The ipv6 enable command in interface configuration mode

The ipv6 eigrp command in interface configuration mode

The ipv6 router eigrp command in global configuration mode

The eigrp router-id command in global configuration modeDuring verification, you discover that EIGRP for IPv6 is not running on the routers. Which of the following should be done to fix the issue?

  • The ipv6 address command should be executed in interface configuration mode.
  • The ipv6 address command should be executed in router configuration mode.
  • The eigrp router-id command should be executed in interface configuration mode.
  • The eigrp router-id command should be executed in router configuration mode.
Explanation:
The eigrp router-id command should be executed in router configuration mode to fix the issue. This command specifies a fixed router IPv4 address to the router. If this command is missing or incorrectly configured on the router, EIGRP for IPv6 will not run properly.Another command that you should perform so that EIGRP for IPv6 runs on the routers is the no shutdown command. You should execute this command in interface configuration mode. The no shutdown command is necessary because all the interfaces with EIGRP for IPv6 enabled on them are in a shutdown state by default.A sample configuration to implement EIGRP for IPv6 on a router is as follows:

rtrA(config)# ipv6 unicast-routing
rtrA(config) # interface Fa0/1
rtrA(config-if) # ipv6 enable
rtrA(config-if) # ipv6 eigrp 355
rtrA(config-if)# no shutdown
rtrA(config-if) # exit
rtrA(config)# ipv6 router eigrp 355
rtrA(config-rtr)# eigrp router-id 1.1.1.1

The two options stating that the ipv6 address command should be executed on the routers are incorrect. EIGRP for IPv6 can be configured on router interfaces without explicitly specifying a global unicast IPv6 address. If you specify the ipv6 enable command, as in this scenario, then the ipv6 address command is not required.

The option stating that the eigrp router-id command should be executed in interface configuration mode is incorrect. This command should be executed in router configuration mode instead of interface or global configuration modes.

Objective:
Layer 3 Technologies
Sub-Objective:
Identify IPv6 addressing and subnetting

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