Lab 7. Eigrp Filtering – Authentication

Eigrp hanya memiliki MD5 authentication, tidak terdapat clear text authentication.

*R1

  •  R1(config)#key chain EIGRP
  •  R1(config-keychain)#key 1
  •  R1(config-keychain-key)#key-string CCNP
  •  R1(config-keychain-key)#exit
  •  R1(config-keychain)#exit
  •  R1(config)#int fa0/0
  •  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
  •  R1(config-keychain)#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

Coba cek sebagai bentuk verifikasi-nya

*R1

  •  R1(config)#do debug eigrp packets

 EIGRP Packets debugging is on

  (UPDATE, REQUEST, QUERY, REPLY, HELLO, IPXSAP, PROBE, ACK, STUB,

 SIAQUERY, SIAREPLY)

 R1#

 *Aug 5 10:06:56.543: EIGRP: Sending HELLO on FastEthernet0/0

 *Aug 5 10:06:56.543: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0

 *Aug 5 10:06:56.723: EIGRP: Sending HELLO on Loopback0

 CCNP ENTERPRISE | SMK IDN BOARDING SCHOOL 29

 *Aug 5 10:06:56.723: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0

 *Aug 5 10:06:56.723: EIGRP: Received HELLO on Loopback0 nbr 1.1.1.1

 *Aug 5 10:06:56.723: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0

 *Aug 5 10:06:56.723: EIGRP: Packet from ourselves ignored

 R1#

 *Aug 510:06:57.851: EIGRP: received packet with MD5 authentication, key id = 1

 *Aug 5 10:06:57.851: EIGRP: Received HELLO on FastEthernet0/0

 nbr

 12.12.12.2

 *Aug 5 10:06:57.851: AS 10, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0

 peerQ un/rely 0/0

Untuk menghentikan debug packet-nya, tinggal ketik “do no debug eigrp packets”.

Leave a Reply

*