Lab.19 CCNA Cara konfigurasi Enhanced Interior Gateway Routing Protocol (EIGRP) Cisco - Enhanced Interior Gateway Routing Protocol (EIGRP) adalah protokol distance vector yang dikembangkan oleh cisco. EIGRP merupakan pengembangan dari IGRP. Untuk mengaktifkan EIGRP, digunakan sintaks router eigrp autonomous-system atau AS number. Berbeda seperti AS Number yang IANA kelola, AS number ini merupkan singel entiti yang dikelola oleh masing-masing ISP.
AS Number berupa angka dari 1 hingga 65535. Agar setiap router dapat saling berkomunikasi, maka AS Number haruslah sama antar router untuk membuat network adjencies/saling terhubung.
EIGRP juga membutuhkan definisi router-id, sama seperti konfigurasi OSPF. Jika tidak didefinisikan, router-id akan mengambil ip address loopback, jika loopback tidak didefinisikan maka akan mengambil IP Address interface fisik yang paling tinggi.
Selanjutnya agar masing-masing router saling adjencies, diperlukan pendefinisian kepada network-network yang saling terhubung menggunakan sintaks Router(config-router)# network ipv4-network-address. EIGRP merupakan classfull network, namun jika ingin mendefinisikan lebih detail lagi, bisa menggunakan wildcard seperti OSPF. Contohnya network 192.168.10.8 0.0.0.3.
Perintah passive-interface digunakan untuk membatasi paket EIGRP disalahgunakan oleh device yang tidak ikut dalam network EIGRP, seperti end device. Dalam lab ini, menggunakan AS Number 1. IP Address pada setiap router sudah dikonfigurasi, tinggal routing nya saja. Berikut konfigurasi nya :
Konfigurasi R1
R1#configure terminal
R1(config)#router eigrp 1
R1(config-router)#eigrp router-id 1.1.1.1
R1(config-router)#net
R1(config-router)#network 12.12.12.0 0.0.0.3
R1(config-router)#network 13.13.13.0 0.0.0.3
R1(config-router)#network 192.168.1.0 0.0.0.255
R1(config-router)#passive-interface gigabitEthernet 0/2
R1(config-router)#no auto-summary
R1(config-router)#end
R1#
Konfigurasi R2
R2#configure terminal
R2(config)#router eigrp 1
R2(config-router)#eigrp router-id 2.2.2.2
R2(config-router)#network 192.168.2.0 0.0.0.255
R2(config-router)#network 12.12.12.0 0.0.0.3
R2(config-router)#network 23.23.23.0 0.0.0.3
R2(config-router)#passive-interface gigabitEthernet 0/1
R2(config-router)#no auto-summary
R1(config-router)#end
Konfigurasi R3
R3#configure terminal
R3(config)#router eigrp 1
R3(config-router)#eigrp router-id 3.3.3.3
R3(config-router)#network 23.23.23.0 0.0.0.3
R3(config-router)#network 13.13.13.0 0.0.0.3
R3(config-router)#network 192.168.3.0 0.0.0.255
R3(config-router)#passive-interface gigabitEthernet 0/2
R1(config-router)#end
R1#
Pengujian
Pengujian, bisa dilakukan dengan menggunakan sintaks show ip protocols, show ip route, sh ip route eigrp, show ip route eigrp
R1#show ip protocols
Routing Protocol is "eigrp 1 "
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Default networks flagged in outgoing updates
Default networks accepted from incoming updates
Redistributing: eigrp 1
EIGRP-IPv4 Protocol for AS(1)
Metric weight K1=1, K2=0, K3=1, K4=0, K5=0
NSF-aware route hold timer is 240
Router-ID: 1.1.1.1
Topology : 0 (base)
Active Timer: 3 min
Distance: internal 90 external 170
Maximum path: 4
Maximum hopcount 100
Maximum metric variance 1
Automatic Summarization: disabled
Automatic address summarization:
Maximum path: 4
Routing for Networks:
12.12.12.0/30
13.13.13.0/30
192.168.1.0
Passive Interface(s):
GigabitEthernet0/2
Routing Information Sources:
Gateway Distance Last Update
12.12.12.2 90 3830614
13.13.13.2 90 3881733
Distance: internal 90 external 170
R1#
R1#show ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area
* - candidate default, U - per-user static route, o - ODR
P - periodic downloaded static route
Gateway of last resort is not set
12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 12.12.12.0/30 is directly connected, GigabitEthernet0/0
L 12.12.12.1/32 is directly connected, GigabitEthernet0/0
13.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 13.13.13.0/30 is directly connected, GigabitEthernet0/1
L 13.13.13.1/32 is directly connected, GigabitEthernet0/1
23.0.0.0/30 is subnetted, 1 subnets
D 23.23.23.0/30 [90/3072] via 12.12.12.2, 00:24:57, GigabitEthernet0/0
[90/3072] via 13.13.13.2, 00:24:06, GigabitEthernet0/1
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/2
L 192.168.1.1/32 is directly connected, GigabitEthernet0/2
D 192.168.2.0/24 [90/3072] via 12.12.12.2, 00:24:57, GigabitEthernet0/0
D 192.168.3.0/24 [90/3072] via 13.13.13.2, 00:23:55, GigabitEthernet0/1
R1#
R1#show ip route eigrp
23.0.0.0/30 is subnetted, 1 subnets
D 23.23.23.0 [90/3072] via 12.12.12.2, 00:25:13, GigabitEthernet0/0
[90/3072] via 13.13.13.2, 00:24:22, GigabitEthernet0/1
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
D 192.168.2.0/24 [90/3072] via 12.12.12.2, 00:25:13, GigabitEthernet0/0
D 192.168.3.0/24 [90/3072] via 13.13.13.2, 00:24:11, GigabitEthernet0/1
R1#
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