ROUTER 1
Router>ena
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int fa 0/0
Router(config-if)#ip add 172.16.3.1 255.255.255.0
Router(config-if)#no shut
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit
Router(config)#int ser2/0
Router(config-if)#ip add 172.16.2.1 255.255.255.0
Router(config-if)#clock rate 9600
Router(config-if)#no shut
%LINK-5-CHANGED: Interface Serial2/0, changed state to up
Router(config-if)#exit
Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial2/0, changed state to up
Router(config)#ip route 0.0.0.0 0.0.0.0 ser2/0
Router(config)#exit
%SYS-5-CONFIG_I: Configured from console by console
Router#
-------------------------------------------------------------ROUTER 2----------------------------------------------------------------
Router>ena
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int fa0/0
Router(config-if)#ip add 172.16.1.1 255.255.255.0
Router(config-if)#no shut
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit
Router(config)#int ser 2/0
Router(config-if)#ip add 172.16.2.2 255.255.255.0
Router(config-if)#description ke router R1
Router(config-if)#no shut
%LINK-5-CHANGED: Interface Serial2/0, changed state to down
Router(config-if)#exit
Router(config)#int ser 3/0
Router(config-if)#ip add 192.168.1.1 255.255.255.0
Router(config-if)#clock rate 9600
Router(config-if)#description ke router R3
Router(config-if)#no shut
%LINK-5-CHANGED: Interface Serial3/0, changed state to up
Router(config-if)#exit
Router(config)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial3/0, changed state to up
Router(config)#ip route 172.16.3.0 255.255.255.0 ser 2/0
Router(config)#ip route 192.168.2.0 255.255.255.0 ser 3/0
Router(config)#
-------------------------------------------------------------ROUTER 3----------------------------------------------------------------
Router>ena
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int fa0/0
Router(config-if)#ip add 192.168.2.1 255.255.255.0
Router(config-if)#no shut
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
Router(config-if)#exit
Router(config)#int ser 2/0
Router(config-if)#ip add 192.168.1.2 255.255.255.0
Router(config-if)#no shut
%LINK-5-CHANGED: Interface Serial2/0, changed state to down
Router(config-if)#exit
Router(config)#ip route 172.16.0.0 255.255.252.0 ser 2/0
Router(config)#
Penjelasan :
· Router1 menggunakan default route yaitu :
ip route 0.0.0.0 0.0.0.0 ser2/0
· Router2 menggunakan 2(dua) statis route yaitu :
1. ip route 172.16.3.0 255.255.255.0 ser 2/0
2. ip route 192.168.2.0 255.255.255.0 ser 3/0
· Router3
Untuk Router3 sebenarnya menggunakan 3(tiga) statis route yaitu :
1. ip route 172.16.1.0 255.255.255.0 ser 2/0
2. ip route 172.16.2.0 255.255.255.0 ser 2/0
3. ip route 172.16.3.0 255.255.255.0 ser 2/0
Akan tetapi, di sini saya menggunakan Route Summarization yaitu dengan cara memperkecil routing table sehingga membuat proses pencarian menjadi lebih efisien, karena lebih sedikit
rute yang dicari.
Caranya yaitu dari 3(tiga) statis route di atas disederhanakan menjadi
ip route 172.16.0.0 255.255.252.0 ser 2/0
karena 3(tiga) statis rute di atas menggunakan interface keluaran yang sama. Untuk lebih jelasnya perhatikan gambar berikut :
ISI/ELEMEN KOTAK
