Which of the following commands should exist in the output of the show running-config command on rtrA and rtrB? (Choose all that apply.)

Last Updated on July 31, 2021 by Admin 1

You have implemented an automatic 6-to-4 tunnel between the routers rtrA and rtrB as shown in the following network diagram:

300-410 Part 01 Q06 004
300-410 Part 01 Q06 004

The routers rtrA and rtrB are connected to two IPv6 subnets and are separated by an IPv4 network. You decide to verify whether the tunnel was correctly implemented using the show running-config command.

Which of the following commands should exist in the output of the show running-config command on rtrA and rtrB? (Choose all that apply.)

  • interface tunnel
  • tunnel source
  • tunnel destination
  • tunnel mode ipv6ip
  • tunnel mode ipv6ip 6to4
Explanation:
The following commands should exist in the output of the show running-config command on rtrA and rtrB:interface tunnel
tunnel source
tunnel mode ipv6ip 6to4The interface tunnel command is used to define a tunnel interface on the router. The tunnel source command allows you to specify the source of the tunnel, which is the router interface that faces the IPv4 network. The tunnel source must be configured with an IPv4 address. The tunnel mode ipv6ip 6to4 command is used to specify the tunneling mechanism, which in this case is automatic 6-to-4.The partial output of the show running-config command on rtrA is as follows:

!
interface Tunnel0
no ip address
tunnel mode ipv6ip 6to4
tunnel source 172.50.20.5
ipv6 address 2002:ac32:of06::1/48
!
<output omitted>

The partial output of the show running-config command on rtrB is as follows:

!
interface Tunnel0
no ip address
tunnel mode ipv6ip 6to4
tunnel source 172.50.20.1
ipv6 address 2002:ac32:0f06::2/48
!
<output omitted>

The tunnel destination command and the tunnel mode ipv6ip commands do not appear in the show running-config output when automatic 6-to-4 tunnels are implemented on rtrA and rtrB. Both of these commands are executed for manually configured tunnels.

Objective:
Network Principles
Sub-Objective:
Recognize proposed changes to the network

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