EIGRP – Authentication

Pada EIGRP hanya ada MD5 authentication, tidak ada clear text authentication

R1(config)#key chain EIGRP (*BEBAS)

R1(config-keychain)#key 1

R1(config-keychain-key)#key-string CCNP (*BEBAS)

R1(config-keychain-key)#exit

R1(config)#int gigabitEthernet 1/0

R1(config-if)#ip authentication mode eigrp 10 md5

R1(config-if)#ip authentication key-chain eigrp 10 EIGRP

R2 R2(config)#key chain EIGRP

R2(config-keychain)#key 1

R2(config-keychain-key)#key-string CCNP

R1(config-keychain-key)#exit

R2(config)#int gigabitEthernet 1/0

R2(config-if)#ip authentication mode eigrp 10 md5

R2(config-if)#ip authentication key-chain eigrp 10 EIGRP

CEK :

R1#debug eigrp packets

EIGRP Packets debugging is on

(UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB, SIAQUERY, SIAREPLY)

R1#

*Jul 8 10:06:56.543: EIGRP: Sending HELLO on GigabitEthernet1/0

*Jul 8 10:06:56.543: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0

*Jul 8 10:06:56.723: EIGRP: Sending HELLO on Loopback0

*Jul 8 10:06:56.723: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0

*Jul 8 10:06:56.723: EIGRP: Received HELLO on Loopback0 nbr 1.1.1.1

*Jul 8 10:06:56.723: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0

*Jul 8 10:06:56.723: EIGRP: Packet from ourselves ignored

R1#

*Jul 8 10:06:57.851: EIGRP: received packet with MD5 authentication, key id = 1

*Jul 8 10:06:57.851: EIGRP: Received HELLO on GigabitEthernet1/0 nbr 12.12.12.2

*Jul 8 10:06:57.851: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0

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