Config Register is 0x4a6f6469

March 14, 2008

EIGRP - 04

Filed under: Network Engineer, Cisco, CCNP, BSCI, Routing

Lab EIGRP - 04 akan mengkonfigurasi autentikasi pada routing EIGRP. Topologi EIGRP - 04 lihat gambar dibawah,

Topologi EIGRP - 04 

Langkah pertama adalah men-set semua router mempunyai waktu yang sama. Gunakan tips dan tricks NTP :

R2#
R2#clock set 23:58:00 march 13 2008
R2#
*Mar 13 23:58:00.000: %SYS-6-CLOCKUPDATE: System clock has been updated from 00:
21:04 UTC Fri Mar 1 2002 to 23:58:00 UTC Thu Mar 13 2008, configured from console by console.
R2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R2(config)#ntp master
R2(config)#

R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#ntp server 172.1.1.2
R1(config)#

R3#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R3(config)#ntp server 172.2.2.2
R3(config)#

Setelah semua router dipastikan mempunyai waktu yang synchronize satu dengan yang lainnya, selanjutnya konfigur CLI autentikasi pada routing EIGRP:

R2(config)#key chain auth
R2(config-keychain)#key 1

R2(config-keychain-key)#key-string ccna
R2(config-keychain-key)#accept-lifetime 23:58:00 march 13 2008 01:00:00 march 14 2008
R2(config-keychain-key)#send-lifetime 23:58:00 march 13 2008 01:00:00 march 14 2008
R2(config-keychain-key)#int s1/0
R2(config-if)#ip authentication key-chain eigrp 10 auth
R2(config-if)#
Mar 14 00:05:35.759: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.1 (Seri
al1/0) is down: keychain changed
Mar 14 00:05:37.551: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.1 (Seri
al1/0) is up: new adjacency
Mar 14 00:06:47.735: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.1 (Seri
al1/0) is down: Interface Goodbye received
Mar 14 00:06:52.255: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.1 (Seri
al1/0) is up: new adjacency
R2(config-if)#int s1/1
R2(config-if)#ip authentication key-chain eigrp 10 auth
R2(config-if)#
Mar 14 00:07:20.487: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.3 (Seri
al1/1) is down: keychain changed
Mar 14 00:07:23.807: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.3 (Seri
al1/1) is up: new adjacency
Mar 14 00:07:53.015: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.3 (Seri
al1/1) is down: Interface Goodbye received
Mar 14 00:07:57.871: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.3 (Seri
al1/1) is up: new adjacency
R2(config-if)#ip authentication mode eigrp 10 md5
R2(config-if)#
Mar 14 00:08:13.447: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.3 (Seri
al1/1) is down: authentication mode changed
Mar 14 00:08:30.755: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.3 (Seri
al1/1) is down: Interface Goodbye received
Mar 14 00:08:35.619: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.3 (Seri
al1/1) is up: new adjacency
R2(config-if)#int s1/0
R2(config-if)#ip authentication mode eigrp 10 md5
R2(config-if)#
Mar 14 00:08:53.835: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.1 (Seri
al1/0) is down: authentication mode changed
Mar 14 00:09:25.787: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.1 (Seri
al1/0) is down: Interface Goodbye received
Mar 14 00:09:30.543: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.1 (Seri
al1/0) is up: new adjacency

R1(config)#key chain auth
R1(config-keychain)#key 1
R1(config-keychain-key)#key-string ccna
R1(config-keychain-key)#accept-lifetime 23:58:00 march 13 2008 01:00:00 march 14 2008
R1(config-keychain-key)#send-lifetime 23:58:00 march 13 2008 01:00:00 march 14 2008
R1(config-keychain-key)#
Mar 14 00:05:35.832: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.2 (Seri
al1/0) is down: Interface Goodbye received
Mar 14 00:05:40.152: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.2 (Seri
al1/0) is up: new adjacency
R1(config-keychain-key)#int s1/0
R1(config-if)#ip authentication key-chain eigrp 10 auth
R1(config-if)#
Mar 14 00:06:47.680: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.2 (Seri
al1/0) is down: keychain changed
Mar 14 00:06:49.524: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.2 (Seri
al1/0) is up: new adjacency
Mar 14 00:08:53.901: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.2 (Seri
al1/0) is down: Auth failure
R1(config-if)#int s1/0
R1(config-if)#ip authentication mode eigrp 10 md5
R1(config-if)#
Mar 14 00:09:27.333: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.1.1.2 (Seri
al1/0) is up: new adjacency

R3(config)#key chain auth
R3(config-keychain)#key 1
R3(config-keychain-key)#key-string ccna
R3(config-keychain-key)#$accept-lifetime 23:58:00 march 13 2008 01:00:00 march 14 2008
R3(config-keychain-key)#send-lifetime 23:58:00 march 13 2008 01:00:00 march 14 2008
R3(config-keychain-key)#int s1/1
R3(config-if)#
Mar 14 00:07:20.495: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.2 (Seri
al1/1) is down: Interface Goodbye received
Mar 14 00:07:24.979: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.2 (Seri
al1/1) is up: new adjacency
R3(config-if)#int s1/1
R3(config-if)#ip authentication key-chain eigrp 10 auth
R3(config-if)#
Mar 14 00:07:52.851: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.2 (Seri
al1/1) is down: keychain changed
Mar 14 00:07:52.863: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.2 (Seri
al1/1) is up: new adjacency
Mar 14 00:08:13.419: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.2 (Seri
al1/1) is down: Auth failure
R3(config-if)#ip authentication mode eigrp 10 md5
R3(config-if)#
Mar 14 00:08:31.779: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 10: Neighbor 172.2.2.2 (Serial1/1) is up: new adjacency

 

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