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Thursday, June 20, 2013

Basic RIP Configuration (Scenario B RIPv1 melalui Subnet dan diantara Classful Network)



1.  Tujuan Praktikum
1.    Mahasiswa dapat melakukan konfigurasi RIP.
2.    Mahasiswa dapat melakukan konfigurasi RIPv1 pada Classful Network.
3.    Mahasiswa dapat melakukan konfigurasi RIPv1 melalui Subnet dan diantara Classful Network.
4.    Mahasiswa dapat melakukan konfigurasi RIPv1 pada sebuah Stub Network.

2.   Pendahuluan
RIP ( Routing Information Protokol ) pertama kali dikembangkan oleh Xerox, termasuk protokol routing dinamis yang telah lama diimplementasikan secara luas.

RIP umumnya digunakan untuk mentransfer informasi routing di antara router-router yang berlokasi pada jaringan yang sama. Router-router meng-update tabel mereka dalam interval yang dapat diprogram, tipikalnya 30 detik. Untuk mengirim data, router-router menggunakan konsep distance-vector

Kelemahan RIP adalah ia hanya efektif mentransfer data sampai jumlah hop 15. Jika melebihi jumlah ini, transmisi berpeluang "unreachable".

Jika di sana terdapat multipath untuk menuju host tujuan, router dengan RIP-nya memilih path dengan jumlah terkecil meskipun belum tentu merupakan rute tercepat. Jadi, RIP tidak bekerja berdasarkan kecepatan, melainkan jumlah hop terkecil.

     Terdapat dua versi RIP yaitu RIPv1 dan RIPv2. Versi default RIP adalah versi 1. Umumnya, kita mengatakan "RIP" untuk RIP versi 1. RIPv2 hanyalah sedikit di modifikasi dari RIPv1. RIPv2 merupakan protokol routing distance vector dengan timer-timer yang sama sebagaimana RIPv1. RIPv1 dan RIPv2 juga menggunakan metric dan hop-count yang sama. Akan tetapi, RIPv2 bersifat classless dan ia kapabel melakukan autentikasi. Update-update RIPv2 dikirim ke address multicast 22.0.0.9, yang hanya diproses oleh router-router lain yang menjalankan RIPv2. Dengan demikian, update-update RIPv2 tidak mengganggu prosesi host-host non-router.

1.  Langkah Praktikum

Pada praktik kali ini menggunakan aplikasi software Cisco Packet Tracer 5.3.3. Dalam scenario ini telah disediakan IP Addressing Table yang harus dikonfigurasikan untuk masing-masing device  yang digunakan :
 
Tabel 1. Addressing Table Scenario B


Dan telah disediakan susunan rangkaian jaringan seperti pada scenario A pada artikel sebelumnya :


Gambar 1. Susunana Rangkaian Jaringan Scenario B


Langkah Pertama

Ganti pengkonfigurasian ip address pada s0/0/0 R1 yang sebelumnya digunakan pada scenario A dengan ip address yang telah ditentukan pada tabel. Klik icon router -> menu tab CLI
R1(config)#int s0/0/0
R1(config-if)#ip add 172.30.2.1 255.255.255.0
R1(config-if)#shutdown
%LINK-5-CHANGED: Interface Serial0/0/0, changed state to administratively
down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to
down
R1(config-if)#no shutdown
%LINK-5-CHANGED: Interface Serial0/0/0, changed state to up
R1(config-if)#
%LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to
Up

Langkah Kedua

Hapus konfigurasi RIP yang sebelumnya digunakan untuk masing-masing Router (R1, R2 dan R3).Klik icon router->menu tab CLI.
R1(config)#no router rip
R2(config)#no router rip
R3(config)#no router rip

Langkah Ketiga


Lakukan pengkonfigurasian RIP pada R1 dengan menggunakan network address yang ditentukan pada IP address yang telah digunakan.

R1(config)#router rip
R1(config-router)#network 172.30.0.0

Langkah Keempat

Konfigurasi R1(RIPv1) untuk berhenti mengirim perintah update ke interface fa0/0.

R1(config-router)#passive-interface fastethernet 0/0
R1(config-router)#end
%SYS-5-CONFIG_I: Configured from console by console
R1#copy run start


Langkah Kelima

Lakukan pengkonfigurasian RIP pada R2 dan R3 dengan menggunakan network address yang sesuai dengan Ip address yang digunakan, kemudian berhentikan pengiriman perintah update RIPv1 seperti pada pengkonfigurasian R1 sebelumnya.

R2(config)#router rip
R2(config-router)#network 172.30.0.0
R2(config-router)#network 192.168.4.0
R2(config-router)#passive-interface fastethernet 0/0
R2(config-router)#end
%SYS-5-CONFIG_I: Configured from console by console
R2#copy run start

R3(config)#router rip
R3(config-router)#network 192.168.4.0
R3(config-router)#network 192.168.5.0
R3(config-router)#passive-interface fastethernet 0/0
R3(config-router)#end
%SYS-5-CONFIG_I: Configured from console by console
R3#copy run start

Langkah Keenam

Lakukan pengkonfigurasian pada masing-masing PC sesuai dengan ip address yang telah ditentukan pada tabel untuk scenario B :


Gambar 2. Konfigurasi PC1


Gambar 3. Konfigurasi PC2


Gambar 4. Konfigurasi PC


4. Hasil Praktikum

Untuk mengetahui hasil praktikum pada praktek kali ini, dapat dilakukan dengan menggunakan command "show ip route", "show ip protocols", "debug ip rip".
R1#show ip route.
 
R1#show ip route
Codes: C - connected, S - static, I - IGRP, 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
     172.30.0.0/24 is subnetted, 3 subnets
C       172.30.1.0 is directly connected, FastEthernet0/0
C       172.30.2.0 is directly connected, Serial0/0/0
R       172.30.3.0 [120/1] via 172.30.2.2, 00:00:28, Serial0/0/0
R    192.168.4.0/24 [120/1] via 172.30.2.2, 00:00:28, Serial0/0/0
R    192.168.5.0/24 [120/2] via 172.30.2.2, 00:00:28, Serial0/0/0
R1#show ip protocols
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 1 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: rip
Default version control: send version 1, receive any version
  Interface             Send  Recv  Triggered RIP  Key-chain
  Serial0/0/0           1     2 1  
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
            172.30.0.0
            192.168.1.0
            192.168.2.0
Passive Interface(s):
            FastEthernet0/0
Routing Information Sources:
            Gateway         Distance      Last Update
            172.30.2.2           120      00:00:18
R1#debug ip rip
RIP protocol debugging is on
R1#RIP: sending  v1 update to 255.255.255.255 via Serial0/0/0 (172.30.2.1)
RIP: build update entries
      network 172.30.1.0 metric 1
RIP: received v1 update from 172.30.2.2 on Serial0/0/0
      172.30.3.0 in 1 hops
      192.168.4.0 in 1 hops
      192.168.5.0 in 2 hops
R2#show ip route
Codes: C - connected, S - static, I - IGRP, 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
     172.30.0.0/24 is subnetted, 3 subnets
R       172.30.1.0 [120/1] via 172.30.2.1, 00:00:16, Serial0/0/0
C       172.30.2.0 is directly connected, Serial0/0/0
C       172.30.3.0 is directly connected, FastEthernet0/0
     192.168.4.0/30 is subnetted, 1 subnets
C       192.168.4.8 is directly connected, Serial0/0/1
R    192.168.5.0/24 [120/1] via 192.168.4.10, 00:00:15, Serial0/0/1
R2#show ip protocols
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 20 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: rip
Default version control: send version 1, receive any version
  Interface             Send  Recv  Triggered RIP  Key-chain
  Serial0/0/1           1     2 1  
  Serial0/0/0           1     2 1  
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
            172.30.0.0
            192.168.2.0
            192.168.3.0
            192.168.4.0
Passive Interface(s):
            FastEthernet0/0
Routing Information Sources:
            Gateway         Distance      Last Update
            172.30.2.1           120      00:00:14
            192.168.4.10         120      00:00:07
R2#debug ip rip
RIP protocol debugging is on
R2#RIP: received v1 update from 192.168.4.10 on Serial0/0/1
      192.168.5.0 in 1 hops
RIP: sending  v1 update to 255.255.255.255 via Serial0/0/1 (192.168.4.9)
RIP: build update entries
      network 172.30.0.0 metric 1
RIP: sending  v1 update to 255.255.255.255 via Serial0/0/0 (172.30.2.2)
RIP: build update entries
      network 172.30.3.0 metric 1
      network 192.168.4.0 metric 1
      network 192.168.5.0 metric 2
RIP: received v1 update from 172.30.2.1 on Serial0/0/0
      172.30.1.0 in 1 hops
R3#show ip route
Codes: C - connected, S - static, I - IGRP, 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
R    172.30.0.0/16 [120/1] via 192.168.4.9, 00:00:20, Serial0/0/1
     192.168.4.0/30 is subnetted, 1 subnets
C       192.168.4.8 is directly connected, Serial0/0/1
C    192.168.5.0/24 is directly connected, FastEthernet0/0
R3#show ip protocols
Routing Protocol is "rip"
Sending updates every 30 seconds, next due in 27 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Redistributing: rip
Default version control: send version 1, receive any version
  Interface             Send  Recv  Triggered RIP  Key-chain
  Serial0/0/1           1     2 1  
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
            192.168.0.0
            192.168.4.0
            192.168.5.0
Passive Interface(s):
            FastEthernet0/0
Routing Information Sources:
            Gateway         Distance      Last Update
            192.168.4.9          120      00:00:01
R3#debug ip rip
RIP protocol debugging is on
R3#RIP: sending  v1 update to 255.255.255.255 via Serial0/0/1 (192.168.4.10)
RIP: build update entries
      network 192.168.5.0 metric 1
RIP: received v1 update from 192.168.4.9 on Serial0/0/1
      172.30.0.0 in 1 hops
 
atau dengan cara meng-klik tombol button Check Result pada PT Activity, maka akan didapat laporan hasil seperti berikut :
 
Gambar 5. Hasil Praktikum

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