120 Labs for Cisco CCNA 200-125 and CCENT Exams

Lab 90: Configuring EIGRP for IPv6

Lab Objective:

The objective of this lab exercise is for you to learn how to configure EIGRP running IPv6.

Lab Purpose:

EIGRP for IPv6 will allow you to run a distance vector routing protocol in your infrastructure when running IPv6. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to implement EIGRP on an IPv6-enabled network.

Certification Level:

This lab is suitable for ICND2 certification exam preparation.

Lab Difficulty:

This lab has a difficulty rating of 7/10.

Readiness Assessment:

When you are ready for your certification exam, you should complete this lab in no more than 20 minutes.

Lab Topology:

Please use the following topology to complete this lab exercise:

Task 1:

Configure hostnames on R1, R2, R3, and R4 as illustrated in the topology.

Task 2:

Configure each router with its respective IPv6 addresses and Gigabit interfaces, and make sure that your router is ready to route IPv6 traffic.

Note: You can select the Gigabit interface you want to use (Gig0/0 or Gig0/1) for any network shown in the diagram.

Task 3:

Configure EIGRP for IPv6 in the network as follows:

  • All the routers will be inside ASN 100;
  • There are no IPv4 addresses at all so manually create a router ID for each router (different on each unit); and
  • Make sure that you advertise every network shown in the diagram (including Loopbacks).

Task 4:

Make sure that you can ping from R2 Loopbacks to R4 Loopbacks to ensure that there is full connectivity.

Task 5:

To see the EIGRP database, provide the following information from R1:

  • show ipv6 eigrp neighbhors
  • show ipv6 eigrp topology
  • show ipv6 route

Configuration and Verification

Task 1:

For reference information on configuring hostnames, please refer to earlier labs.

Task 2:

For reference information on configuring IPv6 and IPv6 interfaces, please refer to earlier labs.

Task 3:

R1#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
R1(config)#ipv6 router eigrp 100 
R1(config-rtr)#router-id 1.1.1.1 
R1(config-rtr)#no shut 
R1(config)#int gig0/0 
R1(config-if)#ipv6 eigrp 100 
R1(config)#int gig0/1 
R1(config-if)#ipv6 eigrp 100 

R2#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
R2(config)#ipv6 router eigrp 100 
R2(config-rtr)#router-id 2.2.2.2 
R2(config-rtr)#no shut 
R2(config)#int gig0/0 
R2(config-if)#ipv6 eigrp 100 
R2(config)#int loop1 
R2(config-if)#ipv6 eigrp 100 
R2(config)#int loop2
R2(config-if)#ipv6 eigrp 100 

R3#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
R3(config)#ipv6 router eigrp 100 
R3(config-rtr)#router-id 3.3.3.3 
R3(config-rtr)#no shut 
R3(config)#int gig0/0 
R3(config-if)#ipv6 eigrp 100 
R3(config)#int gig0/1 
R3(config-if)#ipv6 eigrp 100 

R4#config t 
Enter configuration commands, one per line.  End with CTRL/Z. 
R4(config)#ipv6 router eigrp 100 
R4(config-rtr)#router-id 4.4.4.4 
R4(config-rtr)#no shut 
R4(config)#int gig0/0 
R4(config-if)#ipv6 eigrp 100 
R4(config)#int loop1 
R4(config-if)#ipv6 eigrp 100 
R4(config)#int loop2 
R4(config-if)#ipv6 eigrp 100 
R4(config)#int loop3 
R4(config-if)#ipv6 eigrp 100

Task 4:

R2#ping 2001:4444:4444:0002::1 source 2001:BBBB:BBBB:CCCC::1 

Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 2001:4444:4444:2::1, timeout is 2 seconds: 
Packet sent with a source address of 2001:BBBB:BBBB:CCCC::1
!!!!! 
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/57/72 ms 

R4#ping 2001:AAAA:AAAA:AAAA::1 source 2001:4444:4444:0001::1 

Type escape sequence to abort. 
Sending 5, 100-byte ICMP Echos to 2001:AAAA:AAAA:AAAA::1, timeout is 2 seconds: 
Packet sent with a source address of 2001:4444:4444:1::1 
!!!!! 
Success rate is 100 percent (5/5), round-trip min/avg/max = 24/31/44 ms 
Distance: external 20 internal 200 local 200

Task 5:

R1#show ipv6 eigrp neighbors 
IPv6-EIGRP neighbors for process 100 
H   Address           Interface       Hold Uptime   SRTT   RTO  Q  Seq 
                                      (sec)         (ms)       Cnt Num 
1   Link-local address:G0/0           11 00:00:08 1032  5000  0  17 FE80::C007:51FF:FE93:0 
0   Link-local address:G0/1           12 00:09:30   31   200  0  6 FE80::C006:51FF:FE92:0 

R1#show ipv6 eigrp topology 
IPv6-EIGRP Topology Table for AS(100)/ID(1.1.1.1) 

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, 
       r - reply Status, s - sia Status 
P 2001:4444:4444:1::/64, 1 successors, FD is 435200 
    via FE80::C007:51FF:FE93:0 (435200/409600), G0/0 
P 2001:4444:4444:3::/64, 1 successors, FD is 435200 
    via FE80::C007:51FF:FE93:0 (435200/409600), G0/0 
P 2001:4444:4444:2::/64, 1 successors, FD is 435200 
    via FE80::C007:51FF:FE93:0 (435200/409600), G0/0
P 2001:1111:1111:1111::/64, 1 successors, FD is 281600 
    via Connected, G0/1 
P 2001:2222:2222:2222::/64, 1 successors, FD is 281600 
    via Connected, G0/0 
P 2001:3333:3333:3333::/64, 1 successors, FD is 307200 
    via FE80::C007:51FF:FE93:0 (307200/281600), G0/0 
P 2001:AAAA:AAAA:AAAA::/64, 1 successors, FD is 409600 
    via FE80::C006:51FF:FE92:0 (409600/128256), G0/0 
P 2001:BBBB:BBBB:CCCC::/64, 1 successors, FD is 409600 
    via FE80::C006:51FF:FE92:0 (409600/128256), G0/0 

R1#show ipv6 route 
IPv6 Routing Table - 11 entries 
Codes: C - Connected, L - Local, S - Static, R - RIP, B – BGP, 
       U - Per-user Static route, M - MIPv6, 
       I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea, IS - ISIS summary, 
       O - OSPF intra, OI - OSPF inter, OE1 - OSPF ext 1, 
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2, 
       D - EIGRP, EX - EIGRP external 

C   2001:1111:1111:1111::/64 [0/0] 
    via ::, G0/1 
L   2001:1111:1111:1111::1/128 [0/0] 
    via ::, G0/1 
C   2001:2222:2222:2222::/64 [0/0]
    via ::, G0/0 
L   2001:2222:2222:2222::1/128 [0/0] 
    via ::, G0/0 
D   2001:3333:3333:3333::/64 [90/307200] 
    via FE80::C007:51FF:FE93:0, G0/0 
D   2001:4444:4444:1::/64 [90/435200] 
    via FE80::C007:51FF:FE93:0, G0/0 
D   2001:4444:4444:2::/64 [90/435200]
    via FE80::C007:51FF:FE93:0, G0/0 
D   2001:4444:4444:3::/64 [90/435200] 
    via FE80::C007:51FF:FE93:0, G0/0 
D   2001:AAAA:AAAA:AAAA::/64 [90/409600] 
    via FE80::C006:51FF:FE92:0, G0/1 
D   2001:BBBB:BBBB:CCCC::/64 [90/409600] 
    via FE80::C006:51FF:FE92:0, G0/1 
L   FF00::/8 [0/0] 
    via ::, Null0

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