Lab 7. EIGRP – Authentication

Lab 7. EIGRP – Authentication

Pada kali ini routing EIGRP hanya ada MD5 authentication, tidak ada clear text authentication.

Pertama konfigurasikan di R1

Router-1(config)#key chain EIGRP

Router-1(config-keychain)#key 1
Router-1(config-keychain-key)#key-string CCNP
Router-1(config-keychain-key)#exit
!
Router-1(config)#int gigabitEthernet 1/0
Router-1(config-if)#ip authentication mode eigrp 10 md5

Router-1(config-if)#ip authentication key-chain eigrp 10 EIGRP

Lalu R2 juga sama

Router-2(config)#key chain EIGRP

Router-2(config-keychain)#key 1
Router-2(config-keychain-key)#key-string CCNP
Router-2(config-keychain-key)#exit
!
Router-2(config)#int gigabitEthernet 1/0
Router-2(config-if)#ip authentication mode eigrp 10 md5

Router-2(config-if)#ip authentication key-chain eigrp 10 EIGRP

Verifikasi :

R1#debug eigrp packets

EIGRP Packets debugging is on
    (UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY, SIAREPLY)
Router01#
*Jul  27 10:06:56.543: EIGRP: Sending HELLO on GigabitEthernet1/0
*Jul  27 10:06:56.543:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Jul  27 10:06:56.723: EIGRP: Sending HELLO on Loopback0
*Jul  27 10:06:56.723:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Jul  27 10:06:56.723: EIGRP: Received HELLO on Loopback0 nbr 1.1.1.1
*Jul  27 10:06:56.723:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0
*Jul  27 10:06:56.723: EIGRP: Packet from ourselves ignored
Router-1#
*Jul  27 10:06:57.851: EIGRP: received packet with MD5 authentication, key id = 1
*Jul  27 10:06:57.851: EIGRP: Received HELLO on GigabitEthernet1/0 nbr 12.12.12.2

*Jul  27 10:06:57.851:   AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0