Lab Objective:
The objective of this lab exercise is for you to learn and understand how to enable EIGRP routing using a single autonomous system while using a wildcard mask for EIGRP network statements.
Lab Purpose:
Enabling basic EIGRP routing using wildcard masks is a fundamental skill. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to enable basic EIGRP routing while using wildcard masks.
Certification Level:
This lab is suitable for CCNA 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, and Sw1 as illustrated in the topology.
Task 2:
Configure VLAN10 named EIGRP_10 and VLAN20 named EIGRP_20 on Sw1. Next, configure Sw1 F0/2 and F0/3 as trunks. These should be connected to R1 and R2 F0/0 interfaces, respectively.
Task 3:
Configure subinterfaces Fa0/0.10 and F0/0.20 on R1 and R2, respectively. Subinterface Fa0/0.10 on either router should be associated with VLAN10 and subinterface Fa0/0.20 on either router should be associated with VLAN20. Configure IP addresses on both the subinterfaces as illustrated in the topology.
Task$ 4:
Ping between R1 and R2 on subinterface Fa0/0.10 and Fa0/0.20 to verify IP connectivity.
Task 5:
Enable EIGRP using ASN 10 between R1 and R2 F0/0.10 subinterfaces. EIGRP using ASN 10 should only be enabled for these interfaces. Use a wildcard mask to achieve this.
Task 6:
Enable EIGRP using ASN 20 between R1 and R2 F0/0.20 subinterfaces. EIGRP using ASN 20 should only be enabled for these interfaces. Use a wildcard mask to achieve this.
Task 7:
Verify that you have two EIGRP adjacencies on R1 and R2. One adjacency should be for EIGRP using ASN 10 and the other for EIGRP using ASN 20.
Configuration and Verification
Task 1:
For reference information on configuring hostnames, please refer to earlier labs.
Task 2:
Sw1#conf t Enter configuration commands, one per line. End with CTRL/Z. Sw1(config)#vlan10 Sw1(config-vlan)#name EIGRP_10 Sw1(config-vlan)#exit Sw1(config)#vlan20 Sw1(config-vlan)#name EIGRP_20 Sw1(config-vlan)#exit Sw1(config)#int f0/2 Sw1(config-if)#switchport mode trunk Sw1(config-if)#no shut Sw1(config-if)#exit Sw1(config)#int f0/3 Sw1(config-if)#switchport mode trunk Sw1(config-if)#no shut Sw1(config-if)#^Z Sw1#show interfaces trunk Port Mode Encapsulation Status Native vlan Fa0/2 on 802.1q trunking 1 Fa0/3 on 802.1q trunking 1 Port Vlans allowed on trunk Fa0/2 1-4094 Fa0/3 1-4094 Port Vlans allowed and active in management domain Fa0/2 1,10,20 Fa0/3 1,10,20 Port Vlans in spanning tree forwarding state and not pruned Fa0/2 1,10,20 Fa0/3 1,10,20 Sw1#show vlan id 10 VLAN Name Status Ports ---- -------------------------------- --------- ---------------------- 10 EIGRP_10 active Fa0/2, Fa0/3 Sw1#show vlan id 20 VLAN Name Status Ports ---- -------------------------------- --------- ---------------------- 20 EIGRP_20 active Fa0/2, Fa0/3
Task 3:
R1#conf t Enter configuration commands, one per line. End with CTRL/Z. R1(config)#int fa0/0 R1(config-if)#no shutdown R1(config-if)#int fa0/0.10 R1(config-subif)#encapsulation dot1q 10 R1(config-subif)#ip address 192.168.10.1 255.255.255.252 R1(config-subif)#exit R1(config)#int fa0/0.20 R1(config-subif)#encapsulation dot1q 20 R1(config-subif)#ip address 192.168.20.1 255.255.255.252 R1(config-subif)#end R1#show ip int bri Interface IP-Address OK? Method Status Protocol Fast0/0 unassigned YES manual up up Fast0/0.10 192.168.10.1 YES manual up up Fast0/0.20 192.168.20.1 YES manual up up R2#conf t Enter configuration commands, one per line. End with CTRL/Z. R2(config)#int fa0/0 R2(config-if)#no shutdown R2(config-if)#int fa0/0.10 R2(config-subif)#encapsulation dot1q 10 R2(config-subif)#ip address 192.168.10.2 255.255.255.252 R2(config-subif)#exit R2(config)#int fa0/0.20 R2(config-subif)#encapsulation dot1q 20 R2(config-subif)#ip address 192.168.20.2 255.255.255.252 R2(config-subif)#end R2# R2#show ip interface brief Int IP-Address OK? Method Status Protocol Fast0/0 unassigned YES manual up up Fast0/0.10 192.168.10.2 YES manual up up Fast0/0.20 192.168.20.2 YES manual up up
Task 4:
R1#ping 192.168.10.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.10.2, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 1/3/4 ms R1#ping 192.168.20.2 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.20.2, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 1/3/4 ms
Task 5:
R1#conf t Enter configuration commands, one per line. End with CTRL/Z. R1(config)#router eigrp 10 R1(config-router)#network 192.168.10.0 0.0.0.3 R1(config-router)#end R1# R2#conf t Enter configuration commands, one per line. End with CTRL/Z. R2(config)#router eigrp 10 R2(config-router)#network 192.168.10.0 0.0.0.3 R2(config-router)#^Z *Mar 1 00:52:23.436: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 192.168.10.1 (FastEthernet0/0.10) is up: new adjacency R2#
Task 6:
R1#config t Enter configuration commands, one per line. End with CTRL/Z. R1(config)#router eigrp 20 R1(config-router)#net 192.168.20.0 0.0.0.3 R1(config-router)#end R1# R2#conf t Enter configuration commands, one per line. End with CTRL/Z. R2(config)#router eigrp 20 R2(config-router)#network 192.168.20.0 0.0.0.3 R2(config-router)#^Z *Mar 1 01:08:55.887: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 20: Neighbor 192.168.20.1 (FastEthernet0/0.20) is up: new adjacency R2#
Task 7:
R1#show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.10.2 Fa0/0.10 12 00:18:51 1 4500 0 1
IP-EIGRP neighbors for process 20
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.20.2 Fa0/0.20 12 00:02:20 1 4500 0 1
R2#show ip eigrp neighbors
IP-EIGRP neighbors for process 10
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.10.1 Fa0/0.10 10 00:17:58 1907 5000 0 1
IP-EIGRP neighbors for process 20
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 192.168.20.1 Fa0/0.20 11 00:01:26 452 2712 0 1