Authentication
LAB6: Named EIGRP – IPv4
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LAB 6: Diagram
Note: This Lab was developed on Cisco IOS Version15.2(4) M1 ADVENTERPRISEK9-M.
LAB 6: EIGRP Authentication using named configuration:
Task 1: Configure IPv4 EIGRP Authentication using named
configuration
In the configuration mode of router configure IPv4 EIGRP process with a name
R1:
router eigrp cisco
address-family ipv4 autonomous-system 100
net 12.0.0.1 255.255.255.0
net 11.0.1.1 255.255.255.0
net 11.0.2.1 255.255.255.0
net 11.0.3.1 255.255.255.0
exit
In the configuration mode of router configure create Key chain and assign key and select encryption mode
R1:
key chain akbar
key 1
key-string cisco
exit
interface serial 2/0
ip authentication mode eigrp 100 md5
ip authentication key-chain eigrp 100 akbar
exit
Enable EIGRP authentication on both the neighbors
R2:
key chain birbal
key 1
key-string cisco
exit
interface serial 2/0
ip authentication mode eigrp 100 md5
ip authentication key-chain eigrp 100 birbal
exit
Task 2: Verification:
Verification of authentication by following command:
R1#show running-config
key chain akbar
key 1
key-string cisco
!
!
interface Serial2/0
ip address 12.0.0.1 255.255.255.0
ip authentication mode eigrp 100 md5
ip authentication key-chain eigrp 100 akbar
serial restart-delay 0
!
!
router eigrp cisco
!
address-family ipv4 unicast autonomous-system 100
!
topology base
exit-af-topology
network 11.0.1.1 0.0.0.0
network 11.0.2.1 0.0.0.0
network 11.0.3.1 0.0.0.0
network 12.0.0.1 0.0.0.0
exit-address-family
!
R2#show running-config
key chain birbal
key 1
key-string cisco
!
!
interface Serial2/0
ip address 12.0.0.2 255.255.255.0
ip authentication mode eigrp 100 md5
ip authentication key-chain eigrp 100 birbal
serial restart-delay 0
!
!
router eigrp cisco
!
address-family ipv4 unicast autonomous-system 100
!
topology base
network 12.0.0.2 0.0.0.0
network 22.0.1.2 0.0.0.0
network 22.0.2.2 0.0.0.0
network 22.0.3.2 0.0.0.0
network 23.0.0.2 0.0.0.0
!
exit-address-family
!
Verify EIGRP neighborship by following command:
R1#show ip eigrp neighbors
! (Gives details and list of EIGRP neighbors)
EIGRP-IPv4 VR(cisco) Address-Family Neighbors for AS(100)
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 12.0.0.1 Se2/0 10 00:00:19 17 102 0 6
R2#show ip eigrp neighbors
! (Gives details and list of EIGRP neighbors)
EIGRP-IPv4 VR(cisco) Address-Family Neighbors for AS(100)
H Address Interface Hold Uptime SRTT RTO Q Seq
(sec) (ms) Cnt Num
0 12.0.0.1 Se2/0 11 00:00:33 11 100 0 13
1 23.0.0.3 Et0/0 12 00:13:54 1 100 0 15
