MY CCIE JOURNEY

EIGRP AUTHENTICATION WAS VERY SIMPLE HERE IS THE OUTPUT


r1#show key chain
Key-chain EIGRP-KEYS:
key 1 -- text "cisco"
accept lifetime (always valid) - (always valid) [valid now]
send lifetime (always valid) - (always valid) [valid now]
r1#





r1#show ip eigrp int detail
IP-EIGRP interfaces for process 1

Xmit Queue Mean Pacing Time Multicast Pending
Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes
Se1/0 1 0/0 271 0/15 1051 0
Hello interval is 2 sec
Next xmit serial
Un/reliable mcasts: 0/0 Un/reliable ucasts: 21/25
Mcast exceptions: 0 CR packets: 0 ACKs suppressed: 9
Retransmissions sent: 0 Out-of-sequence rcvd: 0
Authentication mode is md5, key-chain is "EIGRP-KEYS"
Use unicast
Se1/1 1 0/0 245 0/15 923 0
Hello interval is 5 sec
Next xmit serial
Un/reliable mcasts: 0/0 Un/reliable ucasts: 16/22
Mcast exceptions: 0 CR packets: 0 ACKs suppressed: 7
Retransmissions sent: 0 Out-of-sequence rcvd: 0
Authentication mode is md5, key-chain is "EIGRP-KEYS"
Use unicast
Fa0/0 2 0/0 343 0/2 1392 0
Hello interval is 5 sec
Next xmit serial

Xmit Queue Mean Pacing Time Multicast Pending
Interface Peers Un/Reliable SRTT Un/Reliable Flow Timer Routes
Un/reliable mcasts: 0/12 Un/reliable ucasts: 29/21
Mcast exceptions: 7 CR packets: 4 ACKs suppressed: 3
Retransmissions sent: 8 Out-of-sequence rcvd: 0
Authentication mode is md5, key-chain is "EIGRP-KEYS"
Use multicast
Lo1 0 0/0 0 0/1 0 0
Hello interval is 5 sec
Next xmit serial
Un/reliable mcasts: 0/0 Un/reliable ucasts: 0/0
Mcast exceptions: 0 CR packets: 0 ACKs suppressed: 0
Retransmissions sent: 0 Out-of-sequence rcvd: 0
Authentication mode is not set
Use multicast







*Mar 1 03:28:48.067: EIGRP: Sending HELLO on Serial1/0
*Mar 1 03:28:48.067: AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0
*Mar 1 03:28:48.483: EIGRP: received packet with MD5 authentication, key id = 1
*Mar 1 03:28:48.483: EIGRP: Received HELLO on Serial1/0 nbr 172.16.12.2
*Mar 1 03:28:48.483: AS 1, Flags 0x0, Seq 0/0 idbQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0
r1#u all
All possible debugging has been turned off
r1#
*Mar 1 03:28:49.783: EIGRP: received packet with MD5 authentication, key id = 1




AS IN RED LINES THE AUTHENTICAITON MODE HAS BEEN TURNED ON TO MD5 SO THE HELLO PACKETS WERE ENCRYPTED ..