Konfigurasi OSPF dan Interface Loopback Lanjutan

Kali ini, topologi yang akan kita konfigurasi adalah seperti berikut :

Sebelum memulai konfigurasi ada baiknya kita membagi network seperti berikut :

Untuk network atas, tabel yang digunakan sbb:

First Host Last Host Broadcast
192.168.1.0/27 192.168.1.1/27 192.168.1.30/27 192.168.1.31/27
192.168.1.32/27 192.168.1.33/27 192.168.1.62/27 192.168.1.63/27
192.168.1.64/27 192.168.1.65/27 192.168.1.94/27 192.168.1.95/27
192.168.1.96/27 192.168.1.97/27 192.168.1.126/27 192.168.1.127/27
192.168.1.128/27 192.168.1.129/27 192.168.1.158/27 192.168.1.159/27
192.168.1.160/27 192.168.1.161/27 192.168.1.190/27 192.168.1.191/27
192.168.1.192/27 192.168.1.193/27 192.168.1.222/27 192.168.1.223/27

Untuk network bawah, tabel yang digunakan sbb:

First Host Last Host Broadcast
192.168.1.0/26 192.168.1.1/26 192.168.1.62/26 192.168.1.63/26
192.168.1.64/26 192.168.1.65/26 192.168.1.126/26 192.168.1.127/26
192.168.1.128/26 192.168.1.129/26 192.168.1.190/26 192.168.1.191/26
192.168.1.192/26 192.168.1.193/26 192.168.1.254/26 192.168.1.255/26

Setelah itu, mari kita mulai untuk mengkonfigurasi.

Pertama-tama, kita konfigurasi pada SServer :

Pemberian nama pad SSerever:

Switch>
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname SServer

Men-set SServer sebagain VTP MODE SERVER:
SServer(config)#vtp mode server
Device mode already VTP SERVER.
SServer(config)#vtp domain unsri
Changing VTP domain name from NULL to unsri
SServer(config)#vtp password fasilkom
Setting device VLAN database password to fasilkom

Pembuat VLAN pada SServer:
SServer(config)#vlan 2
SServer(config-vlan)#name TKJ
SServer(config-vlan)#vlan 3
SServer(config-vlan)#name TI
SServer(config-vlan)#vlan 4
SServer(config-vlan)#name SI
SServer(config-vlan)#vlan 5
SServer(config-vlan)#name TK
SServer(config-vlan)#

Pembagian VLAN berdasarkan interface pada SServer:
SServer(config-if)#interface fa0/3
SServer(config-if)#switchport mode access
SServer(config-if)#switchport access vlan 3
SServer(config-if)#int fa0/4
SServer(config-if)#switchport mode access
SServer(config-if)#switchport access vlan 4

SServer(config-if)#int fa0/5
SServer(config-if)#switchport mode access
SServer(config-if)#switchport access vlan 5

Men-set interface fa0/1 dan 0/2 sebagai mode trunk:
SServer(config-if)#int fa0/2
SServer(config-if)#switchport mode trunk
SServer(config-if)#switchport trunk native vlan 1
SServer(config-if)#^Z
%SYS-5-CONFIG_I: Configured from console by console
SServer#
SServer#conf t
Enter configuration commands, one per line. End with CNTL/Z.
SServer(config)#interface fastEthernet 0/1
SServer(config-if)#switchport mode trunk
SServer(config-if)#switchport trunk native vlan 1
SServer(config-if)#

Pada S1Client1, set sebagai anggota dari VLAN 2 :

Pemberian nama pada S1Client1:

Switch>
Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname S1Client1

Men-set S1Client1 sebagai VTP MODE CLIENT:
S1Client1(config)#vtp mode client
Setting device to VTP CLIENT mode.
S1Client1(config)#vtp domain unsri
Domain name already set to unsri.
S1Client1(config)#vtp password fasilkom
Setting device VLAN database password to fasilkom

Membuat interface fa0/1 sebagai mode trunk dan men-set interface fa0/2 dan fa0/3 sebagi anggota VLAN 2:

S1Client1(config)#interface fastEthernet 0/1
S1Client1(config-if)#switchport mode trunk
S1Client1(config-if)#switchport trunk native vlan 1
S1Client1(config-if)#^Z
%SYS-5-CONFIG_I: Configured from console by console
S1Client1#conf t
Enter configuration commands, one per line. End with CNTL/Z.

S1Client1(config)#int range fastEthernet 0/2-03
S1Client1(config-if-range)#switchport access vlan 2
S1Client1(config-if-range)#^Z
%SYS-5-CONFIG_I: Configured from console by console

Sekarang, melakukan konfigurasi pada R1Client :

Pemberian nama pada R1Client:

Router>en
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname R1Client

Mengaktifkan interface fa0/0 pada R1Client dan memberi IP:
R1Client(config)#interface fa0/0
R1Client(config-if)#ip address 192.168.1.66 255.255.255.224
R1Client(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
R1Client(config-if)#exit

Mengaktifkan interface fa0/1 pada R1Client dan memberi IP:
R1Client(config)#interface fa0/1
R1Client(config-if)#ip address 192.168.2.1 255.255.255.192
R1Client(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
R1Client(config-if)#exit

Memberikan IP pada interface loopback 0:
R1Client(config)#interface loopback 0
%LINK-5-CHANGED: Interface Loopback0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
R1Client(config-if)#ip address 192.168.1.193 255.255.255.255
R1Client(config-if)#exit

Konfigurasi router OSPF pada R1Client :
R1Client(config)#router ospf 1
R1Client(config-router)#network 192.168.1.64 0.0.0.31 area 0
R1Client(config-router)#network 192.168.2.0 0.0.0.63 area 0
R1Client(config-router)#network 192.168.1.193 0.0.0.31 area 0

R1Client(config-router)#network 192.168.2.64 0.0.0.63 area 0
R1Client(config-router)#network 192.168.2.128 0.0.0.63 area 0
R1Client(config-router)#router-id 192.168.1.193
Reload or use "clear ip ospf process" command, for this to take effect
R1Client(config-router)#log-adjacency-changes
R1Client(config-router)#^Z
%SYS-5-CONFIG_I: Configured from console by console
R1Client#

Memberi IP pada Encapsulation di router R1Client :
R1Client>
R1Client>en
R1Client#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1Client(config)#interface fa 0/1.2
R1Client(config-subif)#encapsulation dot1Q 2
R1Client(config-subif)#ip address 192.168.2.65 255.255.255.192
R1Client(config-subif)#exit
R1Client(config)#interface fa 0/1.3
R1Client(config-subif)#encapsulation dot1Q 3
R1Client(config-subif)#ip address 192.168.2.129 255.255.255.192
R1Client(config-subif)#^Z

Menambahkan konfigurasi IP DHCP Pool 1 dan 2 untuk R1Client :
R1Client(config)#ip dhcp pool 1
R1Client(dhcp-config)#default-router 192.168.2.65
R1Client(dhcp-config)#network 192.168.2.64 255.255.255.192
R1Client(config)#ip dhcp pool 2
R1Client(dhcp-config)#default-router 192.168.2.129
R1Client(dhcp-config)#network 192.168.2.128 255.255.255.192
R1Client(dhcp-config)#^Z

Setelah itu, kita konfigurasi S1Server1 yang berada di bawahnya :

Pemberian nama pada S1Client1:

Switch>en
Switch#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#hostname S1Server1

Membuat S1Client1 sebagai server :
S1Server1(config)#vtp mode server
Device mode already VTP SERVER.
S1Server1(config)#vtp domain unsri
Changing VTP domain name from NULL to unsri
S1Server1(config)#vtp password fasilkom
Setting device VLAN database password to fasilkom

Membuat VLAN pada S1Client1 :
S1Server1(config)#vlan 2
S1Server1(config-vlan)#name TI1
S1Server1(config-vlan)#vlan 3
S1Server1(config-vlan)#name TIHotspot
S1Server1(config-vlan)#exit

Men-set interface fa01-3 sebagai mode trunk di S1Client1 :
S1Server1(config)#interface range fa0/1-3
S1Server1(config-if)#switchport mode trunk

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/3, changed state to up
S1Server(config-if-range)#switchport trunk native vlan 1
S1Server1(config-if)#^Z
%SYS-5-CONFIG_I: Configured from console by console

Lalu, konfigurasi S2Client1 dan S2Clien2 :

Lakukan konfigurasi VLAN seperti biasa, dan bagi VLAN-nya.

Sebagai latihan, lakukan konfigurasi yang hampir sama dengan R1Client untuk R2Client dan R3Client dengan catatan, bedakan network-nya.

Setelah konfigurasi ketiga router tersebut selesai, lakukan konfiurasi pada RNat :

Memberi nama pada R1Nat :
Router>en
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname RNat

Mengaktifkan dan memberi IP di interface fa0/1 pada R1Nat :
RNat(config)#interface fa0/0
RNat(config-if)#ip address 192.168.1.1 255.255.255.224
RNat(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state

to up
RNat(config-if)#exit

Memberi IP pada Encapsulation di router pada R1Nat :
RNat(config)#interface fa0/0.2

%LINK-5-CHANGED: Interface FastEthernet0/0.2, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.2, changed

state to upRNat(config-subif)#
RNat(config-subif)#encapsulation dot1Q 2
RNat(config-subif)#ip address 192.168.1.33 255.255.255.224
RNat(config-subif)#exit

RNat(config)#interface fa0/0.3

%LINK-5-CHANGED: Interface FastEthernet0/0.3, changed state to up
RNat(config-subif)#encapsulation dot1Q 3
RNat(config-subif)#ip address 192.168.1.65 255.255.255.224
RNat(config-subif)#exit

RNat(config)#interface fa0/0.4
%LINK-5-CHANGED: Interface FastEthernet0/0.4, changed state to up
RNat(config-subif)#encapsulation dot1Q 4
RNat(config-subif)#ip address 192.168.1.97 255.255.255.224
RNat(config-subif)#exit

RNat(config)#interface fa0/0.5
%LINK-5-CHANGED: Interface FastEthernet0/0.5, changed state to up
RNat(config-subif)#encapsulation dot1Q 5
RNat(config-subif)#ip address 192.168.1.129 255.255.255.224
RNat(config-subif)#exit

Memberi IP di Interface Loopback pada R1Nat :
RNat#conf t
Enter configuration commands, one per line. End with CNTL/Z.
RNat(config)#interface loopback 0

%LINK-5-CHANGED: Interface Loopback0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback0, changed state to up
RNat(config-if)#ip address 192.168.1.196 255.255.255.255

Konfigurasi router OSPF pada RNat :
RNat(config-if)#router ospf 1
RNat(config-router)#network 192.168.1.32 0.0.0.31 area 0
RNat(config-router)#network 192.168.1.64 0.0.0.31 area 0
RNat(config-router)#network 192.168.1.96 0.0.0.31 area 0
RNat(config-router)#network 192.168.1.128 0.0.0.31 area 0

Konfigurasi NAT pada RNat :
RNat>
RNat>en
RNat#conf
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
RNat(config)#ip route 0.0.0.0 0.0.0.0 203.217.134.1
RNat(config)#interface fa0/1
RNat(config-if)#ip nat outside
RNat(config-if)#exit
RNat(config)#interface fa0/0.1

%LINK-5-CHANGED: Interface FastEthernet0/0.1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0.1, changed state to upRNat(config-subif)#
RNat(config-subif)#ip nat inside
RNat(config-subif)#interface fa0/0.2
RNat(config-subif)#ip nat inside
RNat(config-subif)#interface fa0/0.3
RNat(config-subif)#ip nat inside
RNat(config-subif)#interface fa0/0.4
RNat(config-subif)#ip nat inside
RNat(config-subif)#interface fa0/0.5
RNat(config-subif)#ip nat inside
RNat(config-subif)#ip nat inside source list 1 interface fastEthernet 0/1
RNat(config)#ip nat inside source list 1 interface fastEthernet 0/1
RNat(config)#access-list 1 permit any
RNat(config)#^Z
%SYS-5-CONFIG_I: Configured from console by console
RNat#

Selanjutnya, kita lakukan konfigurasi pada Privider:

Router>
Router>en
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname provider
provider(config)#interface fa0/0
provider(config-if)#ip address 192.168.0.1 255.255.255.252
provider(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
provider(config-if)#^Z
%SYS-5-CONFIG_I: Configured from console by console
provider#

Dan terakhir, lakukan konfigurasi pada Backbone dan disini perlu dilakukan default routing:

Router>
Router>en
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname backbone
backbone(config)#interface fa0/0
backbone(config-if)#ip address 192.168.0.2 255.255.255.252
backbone(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
backbone(config-if)#exit
backbone(config)#interface fa0/1
backbone(config-if)#ip address 203.217.134.1 255.255.255.240
backbone(config-if)#no shutdown

%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
backbone(config-if)#exit
backbone(config)#ip route 0.0.0.0 0.0.0.0 192.168.0.1
backbone(config)#^Z

Berikutnya, tinggal beri IP dan Sesuaikan Getway pada server dan PC!


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