Senin, 27 Mei 2019

Perancangan Jaringan pada 3 Kantor Cabang menggunakan Routing EIGRP

Hello semua! Dalam kesempatan ini saya ingin mengajarkan tentang perancangan jaringan pada 3 kantor cabang. Saya menyebutnya kantor cabang 1, kantor cabang 2, dan kantor cabang 3. Disini saya menggunakan metode routing EIGRP. Sebelum lanjut ke perancangan dan penjelasan konfigurasi saya akan menjelaskan tentang routing EIGRP.

- Penjelasan Routing EIGRP

EIGRP (Enhanced Interior Gateway Routing Protocol) adalah routing protocol yang hanya di adopsi oleh router cisco atau sering disebut sebagai proprietary protocol pada cisco. Dimana EIGRP ini hanya bisa digunakan sesama router cisco saja. Bagaimana bila router cisco digunakan dengan router lain seperti Juniper, Hwawei, dll menggunakan EIGRP??? Seperti saya bilang diatas, EIGRP hanya bisa digunakan sesama router cisco saja. EIGRP ini sangat cocok digunakan utk midsize dan large company. Karena banyak sekali fasilitas-fasilitas yang diberikan pada protocol ini.

EIGRP sering disebut juga hybrid-distance-vector routing protocol, karena EIGRP ini terdapat dua tipe routing protocol yang digunakan, yaitu:
  • distance vector, dan
  • link state.
Untuk tipe-tipe routing protocol akan saya tambahkan sehabis penjelasan tentang EIGRP.
EIGRP ini pengembangan dari routing protocol IGRP (distance vector), proprietary cisco juga. Perbandingan (bukan perbedaan) antar IGRP dan EIGRP di bagi menjadi beberapa kategori:
  1. Compability mode,
  2. Metric colocation,
  3. Hop count,
  4. Automatic protocol redistribution, dan
  5. Route tagging
EIGRP dan IGRP dapat di kombinasikan satu sama lain karena EIGRP adalah hanya pengembangan dari IGRP.
Dalam perhitungan untuk menentukan path/jalur manakah yang tercepat/terpendek, EIGRP menggunakan algortima DUAL (Diffusing-Update Algorithm) dalam menentukannya.
EIGRP mempunyai 3 table dalam menyimpan informasi networknya:
  1. Neighbor table,
  2. Topology table, dan
  3. Routing table
- Skenario Perancangan Jaringan

Warna Kuning = Kantor Cabang 1
Warna Ungu = Kantor Cabang 2
Warna Merah = Kantor Cabang 3

Kantor cabang 1 dengan 1 Router, 1 Switch, PC sebanyak 14, dan 5 Laptop
Kantor cabang 2 dengan 1 Router, 1 Switch, PC sebanyak 20
Kantor cabang 3 dengan 1 Router, 1 Switch, PC sebanyak 10

Kantor Cabang 1 = Router X
Kantor Cabang 2 = Router Y
Kantor Cabang 3 = Router Z

- Skema Rancangan Jaringan Komputer

- Table IP Address

Device
Interface
IP Address
Subnet Mask
Default Gateway
Router X (Cabang 1)
G6/0
10.1.49.1
255.255.255.224
N/A
S2/0
10.49.2.1
255.255.255.252
N/A
S3/0
10.49.1.1
255.255.255.252
N/A
Router Y (Cabang 2)
G6/0
10.2.49.1
255.255.255.224
N/A
S2/0
10.49.2.2
255.255.255.252
N/A
S3/0
10.49.3.1
255.255.255.252
N/A
Router Z (Cabang 3)
G6/0
10.3.49.1
255.255.255.224
N/A
S2/0
10.49.3.2
255.255.255.252
N/A
S3/0
10.49.1.2
255.255.255.252
N/A
PC0-PC13 (Cabang 1)
NIC
Pool DHCP
255.255.255.224
10.1.49.1
PC14-PC33 (Cabang 2)
NIC
Pool DHCP
255.255.255.224
10.2.49.1
PC34-PC43 (Cabang 3)
NIC
Pool DHCP
255.255.255.224
10.3.49.1
Laptop0-Laptop4

Pool DHCP
255.255.255.224
10.1.49.1


- Konfigurasi Masing-masing Router

* Router X
Router>enable
Router#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface g6/0
Router(config-if)#ip address 10.1.49.1 255.255.255.224
Router(config-if)#no sh

Router(config-if)#
%LINK-5-CHANGED: Interface GigabitEthernet6/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet6/0, changed state to up

Router(config-if)#interface s2/0
Router(config-if)#ip address 10.49.2.1 255.255.255.252
Router(config-if)#no shutdown

%LINK-5-CHANGED: Interface Serial2/0, changed state to down
Router(config-if)#ex
Router(config)#interface s3/0
Router(config-if)#ip address 10.49.1.1 255.255.255.252
Router(config-if)#no sh

%LINK-5-CHANGED: Interface Serial3/0, changed state to down
Router(config-if)#exit
Router(config)#router eigrp 1
Router(config-router)#network 10.1.49.0 255.255.255.224
Router(config-router)#network 10.49.2.0 255.255.255.252
Router(config-router)#network 10.49.1.0 255.255.255.252
Router(config-router)#do write
Building configuration...
[OK]
Router(config-router)#ex
Router(config)#
Router(config)#ip dhcp pool DHCP1
Router(dhcp-config)#network 10.1.49.0 255.255.255.224
Router(dhcp-config)#%DHCPD-4-PING_CONFLICT: DHCP address conflict: server pinged 10.1.49.1.

Router(dhcp-config)#default-router 10.1.49.1
Router(dhcp-config)#dns-server 10.1.49.1
Router(dhcp-config)#do write
Building configuration...
[OK]
Router(dhcp-config)#ex
Router(config)#

 * Router Y
Router>en
Router#conf ter
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface g6/0
Router(config-if)#ip address 10.2.49.1 255.255.255.224
Router(config-if)#no sh

Router(config-if)#
%LINK-5-CHANGED: Interface GigabitEthernet6/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet6/0, changed state to up

Router(config-if)#interface s2/0
Router(config-if)#ip address 10.49.2.2 255.255.255.252
Router(config-if)#no sh

Router(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up

Router(config-if)#interface s3/0
Router(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up

Router(config-if)#interface s3/0
Router(config-if)#ip address 10.49.3.1 255.255.255.252
Router(config-if)#no sh

%LINK-5-CHANGED: Interface Serial3/0, changed state to down
Router(config-if)#exit
Router(config)#router eigrp 1
Router(config-router)#network 10.2.49.0 255.255.255.224
Router(config-router)#network 10.49.2.0 255.255.255.252
Router(config-router)#
%DUAL-5-NBRCHANGE: IP-EIGRP 1: Neighbor 10.49.2.1 (Serial2/0) is up: new adjacency

Router(config-router)#network 10.49.3.0 255.255.255.252
Router(config-router)#do write
Building configuration...
[OK]
Router(config-router)#exit
Router(config)#ip dhcp pool DHCP2
Router(dhcp-config)#network 10.2.49.0 255.255.255.224
Router(dhcp-config)#defa%DHCPD-4-PING_CONFLICT: DHCP address conflict: server pinged 10.2.49.1.
% Incomplete command.
Router(dhcp-config)#default-router 10.2.49.1
Router(dhcp-config)#do write
Building configuration...
[OK]
Router(dhcp-config)#exit
Router(config)#

 * Router Z
Router>en
Router#conf ter
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#interface g6/0
Router(config-if)#ip address 10.3.49.1 255.255.255.240
Router(config-if)#no sh

Router(config-if)#
%LINK-5-CHANGED: Interface GigabitEthernet6/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet6/0, changed state to up

Router(config-if)#interface s2/0
Router(config-if)#ip address 10.49.3.2 255.255.255.252
Router(config-if)#no sh

Router(config-if)#
%LINK-5-CHANGED: Interface Serial2/0, changed state to up

Router(config-if)#interface s3/0
Router(config-if)#ip address 10.49.1.2 255.255.255.252
Router(config-if)#no sh

Router(config-if)#
%LINK-5-CHANGED: Interface Serial3/0, changed state to up

Router(config-if)#ex
Router(config)#router eigrp 1
Router(config-router)#network 10.3.49.0 255.255.255.224
Router(config-router)#network 10.49.1.0 255.255.255.252
Router(config-router)#network 10.49.3.0 255.255.255.252
Router(config-router)#do write
Building configuration...
[OK]
Router(config-router)#exit
Router(config)#ip dhcp pool DHCP3
Router(dhcp-config)#network 10.3.49.0 255.255.255.224
Router(dhcp-config)#default-router 10.3.49.1
Router(dhcp-config)#dns-server 10.3.49.1
Router(dhcp-config)#do write
Building configuration...
[OK]
Router(dhcp-config)#exit
Router(config)#

 Tambahan :
Semua PC dan Laptop harus diatur DHCP pada IP Addressnya. Seperti gambar berikut.

 - Testing

 Disini saya akan test koneksi dengan cara ping antar Router.

 Router X dan Router Z

Router X dan Router Y

Router Y dan Router Z

Demikian yang bisa saya ajarkan dan jelaskan. Kurang lebihnya mohon maaf dan terima kasih. Semoga bermanfaat.
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