Lab 3: IPv6 Address Autoconfiguration

Lab Objective:

The objective of this lab exercise is for you to learn and understand how to configure IPv6 addresses on Cisco routers using address autoconfiguration and EUI-64 addressing.

Lab Purpose:

Configuring IPv6 addressing is one of your most fundamental tasks as a Cisco engineer. In the exam, you may also be asked to configure an IPv6 address using Stateless Address Autoconfiguration (SLACC) as well as EUI-64 addressing.

Certification Level:

This lab is suitable for CCENT certification exam preparation.

Lab Difficulty:

This lab has a difficulty rating of 4/10.

Readiness Assessment:

When you are ready for your certification exam, you should complete this lab in no more than 10 minutes.

Lab Topology:

Please use the following topology to complete this lab exercise:

Lab 3: IPv6 Address Autoconfiguration 2

Task 1:

Configure the hostnames on routers R1 and R3 as illustrated in the topology.

Task 2:

Configure the IP addresses on the Ethernet interfaces of R1 and R3 as illustrated in the topology. Configure the Loopback interfaces specified in the diagram on R3.

F0/0 on R3 will use SLACC to obtain the address prefix from R1. Loopback0 will use EUI-64 to complete the host portion of the address.

Task 3:

Use the correct show commands to check:

  1. The summary of all configured IP addresses;
  2. The status of the interface (up/down or administratively down); and
  3. The subnet mask applied to the interface.

Configuration and Verification

Task 1:

Router#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Router(config)#hostname R1 
R1(config)# 

Router#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
Router(config)#hostname R3 
R3(config)#

Task 2:

R1(config)#ipv6 unicast-routing 
R1(config)#interface f0/0 
R1(config-if)#ipv6 add 2001:abcd:abcd::1/64 
R1(config-if)#no shut 

R3(config)#ipv6 unicast-routing 
R3(config)#interface f0/0 
R3(config-if)#ipv6 add autoconfig 
R3(config-if)#no shut 
R3(config)#interface lo0 
R3(config-if)# ipv6 address 2001:aaaa:aaaa:aaaa::/64 eui-64

Task 3:

R3#show ipv6 int f0/0 
FastEthernet0/0 is up, line protocol is up 
IPv6 is enabled, link-local address is FE80::C004:8FF:FE04:0 
 No Virtual link-local address(es): 
 Global unicast address(es): 
  2001:ABCD:ABCD:0:C004:8FF:FE04:0, subnet is 2001:ABCD:ABCD::/64 [EUI/CAL/PRE] valid lifetime 2591952 preferred lifetime 604752 
 Joined group address(es): 
  FF02::1
  FF02::2 
  FF02::1:FF04:0 

[Output Truncated] 

R3#show ipv6 int lo0 
Loopback0 is up, line protocol is up 
 IPv6 is enabled, link-local address is FE80::C011:AFF:FE16:0 
 No Virtual link-local address(es): 
 Global unicast address(es): 
  2001:AAAA:AAAA:AAAA:C011:AFF:FE16:0, subnet is 2001:AAAA:AAAA:AAAA::/64 [EUI] 
 Joined group address(es): 
  FF02::1 
  FF02::2 
  FF02::1:FF16:0
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