networking:cisco:ospf-1a

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networking:cisco:ospf-1a [2026/02/04 00:30] – created ilyasanetworking:cisco:ospf-1a [2026/02/04 16:25] (current) – [Konfigurasi] ilyasa
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-====== Cisco : Dynamic routing - OSPF (single area) [U] ====== +====== Cisco : Dynamic routing - OSPF (single area) ====== 
-Desciption+Open Shortest Path First (OSPF) adalah protokol gateway interior (IGP) yang digunakan secara luas untuk melakukan routing paket-paket IP dalam satu sistem otonom (AS) dalam jaringan IP. OSPF dirancang untuk menghitung jalur terpendek secara efisien untuk paket data yang bergerak dari sumber ke tujuan. 
 ===== Syntax ===== ===== Syntax =====
-==== Some acction ==== + 
-^ Command ^ Description ^ +==== Konfigurasi OSPF ==== 
-| ''S1(config)#vlan [vlan-ID]'' | Membuat VLAN baru dan menetapkan nomor VLAN | + 
-| ''S1(config-vlan)#name [name]'' | Memberikan nama pada VLAN |+^Command                                                                           ^Description                                                        ^ 
 +|''%%R1(config)#router ospf [PID]%%''                                              |Process ID [PID] (1 - 65535)                                       | 
 +|''%%R1(config-router)#router-id [a.b.c.d]%%''                                     |menual mengatur router ID, dengan IPv4 format.                     | 
 +|''%%R1(config-router)#network [network-address] [wildcard-mask] area [area id]%%''|Untuk semua network yang terhubung langsung. Area ID 0 - 4294967295| 
 +<WRAP center round tip 90%> 
 + **''%%area id%%'' dapat ditulis dengan format ip adress** 
 +ProTip: Begaimana cara mengetahui network yang terhubung langsung dengan router?\\ 
 +apat diketahu dengan ''%%R1(config)#do show ip route con%%'' command. 
 +</WRAP> 
 + 
 +==== OSPF verification ==== 
 + 
 +^Command                                   ^Description                                                                ^ 
 +|''%%R1#show ip protocols%%''              |PID, router ID, advertised networks, neighbors dan administrative distance.| 
 +|''%%R1#show ip route%%''                  |                                                                           | 
 +|''%%R1#show ip ospf neighbor%%''          |lis OSPF neighbor                                                          | 
 +|''%%R1#show ip ospf%%''                   |identify the PID, router ID, area information, dan waktu                   | 
 +|''%%R1#show ip ospf interface brief%%''   |                                                                           | 
 +|''%%R1#show ip ospf interface%%''         |list ospf interfaces                                                       | 
 +|''%%R1#show ip ospf interface [int-id]%%''|Lebih detail                                                               | 
 Contoh: Contoh:
 <code> <code>
-vlan 10 +router ospf 1 
- name VLAN-10 + network X.X.X.0 0.0.0.255 area 0 
-vlan 20 + network Y.Y.Y.0 0.0.0.3 area 0
- name VLAN-20 +
-vlan 99 +
- name VLAN-Management+
 </code> </code>
 +
  
 ===== Topologi ===== ===== Topologi =====
-Gambar topology +{{ :networking:cisco:cisco_template_routing_rev.png?nolink |}} 
-Goals Topology+<hidden Konfigurasi IP> 
 +  * **R1 : Konfigurasi IP** 
 +<code js> 
 +R1(config)#interface FastEthernet0/0 
 +R1(config-if)#ip address 192.168.1.1 255.255.255.0 
 +R1(config-if)#no shutdown 
 +R1(config-if)#exit 
 +R1(config)#interface Serial0/0/0 
 +R1(config-if)#ip address 10.0.1.1 255.255.255.252 
 +R1(config-if)#no shutdown 
 +R1(config-if)#exit 
 +R1(config)#interface Serial0/1/0 
 +R1(config-if)#ip address 10.0.0.1 255.255.255.252 
 +R1(config-if)#no shutdown 
 +R1(config-if)#exit 
 +</code> 
 +  * **R2 : Konfigurasi IP** 
 +<code js> 
 +R2(config)#interface FastEthernet0/0 
 +R2(config-if)#ip address 192.168.2.1 255.255.255.0 
 +R2(config-if)#no shutdown 
 +R2(config-if)#exit 
 +R2(config)#interface Serial0/0/0 
 +R2(config-if)#ip address 10.0.2.1 255.255.255.252 
 +R2(config-if)#no shutdown 
 +R2(config-if)#exit 
 +R2(config)#interface Serial0/1/0 
 +R2(config-if)#ip address 10.0.0.2 255.255.255.252 
 +R2(config-if)#no shutdown 
 +</code> 
 +  * **R3 : Konfigurasi IP** 
 +<code js> 
 +R3(config)#interface FastEthernet0/0 
 +R3(config-if)#ip address 192.168.3.1 255.255.255.0 
 +R3(config-if)#no shutdown 
 +R3(config-if)#exit 
 +R3(config)#interface Serial0/0/0 
 +R3(config-if)#ip address 10.0.2.2 255.255.255.252 
 +R3(config-if)#no shutdown 
 +R3(config-if)#exit 
 +R3(config)#interface Serial0/1/0 
 +R3(config-if)#ip address 10.0.1.2 255.255.255.252 
 +R3(config-if)#no shutdown 
 +</code> 
 +  * **PCs : Konfigurasi IP** 
 +{{ :networking:cisco:cisco_pcsetip.png?nolink |}} 
 +^PC ^IP Address ^Subnet Mask ^Gateway 
 +| PC1 | 192.168.1.2 | 255.255.255.0 | 192.168.1.1 |  
 +| PC2 | 192.168.2.2 | 255.255.255.0 | 192.168.2.1 |  
 +| PC3 | 192.168.3.2 | 255.255.255.0 | 192.168.3.1 | 
 +</hidden> 
 + 
 +Hubungkan semua segment jaringan hanya dengan ospf dan hanya menggunakan single area
 ===== Konfigurasi ===== ===== Konfigurasi =====
-  * **Step 1 : Pembuatan VLANs**+  * **R1 : Konfigurasi OSFP**
 <code> <code>
-Switch(config)#vlan 10 +R1(config)#router ospf 1 
-Switch(config-vlan)#name BIRU +R1(config-router)#network 192.168.1.0 0.0.0.255 area 0 
-Switch(config-vlan)#exit+R1(config-router)#network 10.0.0.0 0.0.0.3 area 0 
 +R1(config-router)#network 10.0.1.0 0.0.0.3 area 0 
 +</code> 
 +  * **R2 : Konfigurasi OSFP** 
 +<code> 
 +R2(config)#router ospf 1 
 +R2(config-router)#network 192.168.2.0 0.0.0.255 area 0 
 +R2(config-router)#network 10.0.0.0 0.0.0.3 area 0 
 +R2(config-router)#network 10.0.2.0 0.0.0.3 area 0 
 +</code> 
 +  * **R3 : Konfigurasi OSFP** 
 +<code> 
 +R3(config)#router ospf 1 
 +R3(config-router)#network 192.168.3.0 0.0.0.255 area 0 
 +R3(config-router)#network 10.0.1.0 0.0.0.3 area 0 
 +R3(config-router)#network 10.0.2.0 0.0.0.3 area 0 
 +</code> 
 +===== Testing ===== 
 +===== Testing ===== 
 +* **Route tables R1** 
 +<code> 
 +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
  
-Switch(config)#vlan 20 +     10.0.0.0/30 is subnetted, 3 subnets 
-Switch(config-vlan)#name MAGENTA +C       10.0.0.0 is directly connected, Serial0/1/0 
-Switch(config-vlan)#exit+C       10.0.1.0 is directly connected, Serial0/0/0 
 +O       10.0.2.0 [110/128] via 10.0.0.2, 00:02:20, Serial0/1/0 
 +                 [110/128] via 10.0.1.2, 00:02:20, Serial0/0/0 
 +C    192.168.1.0/24 is directly connected, FastEthernet0/0 
 +O    192.168.2.0/24 [110/65] via 10.0.0.2, 00:04:16, Serial0/1/0 
 +O    192.168.3.0/24 [110/65] via 10.0.1.2, 00:02:30, Serial0/0/0
 </code> </code>
-  * **Step 2 : Assign VLANs ke Ports**+ 
 +* **Route tables R2**
 <code> <code>
-Switch(config)#interface f0/1 +R2#show ip route 
-Switch(config-if)#switchport mode access  +Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP 
-Switch(config-if)#switchport access vlan 10 +       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area 
-Switch(config-if)#exit+       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
  
-Switch(config)#interface f0/2 +Gateway of last resort is not set 
-Switch(config-if)#switchport mode access  + 
-Switch(config-if)#switchport access vlan 10 +     10.0.0.0/30 is subnetted, 3 subnets 
-Switch(config-if)#exit+C       10.0.0.0 is directly connected, Serial0/1/0 
 +O       10.0.1.0 [110/128] via 10.0.0.1, 00:03:12, Serial0/1/0 
 +                 [110/128] via 10.0.2.2, 00:03:12, Serial0/0/0 
 +C       10.0.2.0 is directly connected, Serial0/0/0 
 +O    192.168.1.0/24 [110/65] via 10.0.0.1, 00:05:08, Serial0/1/0 
 +C    192.168.2.0/24 is directly connected, FastEthernet0/0 
 +O    192.168.3.0/24 [110/65] via 10.0.2.2, 00:03:12, Serial0/0/0
 </code> </code>
 +* **Route tables R3**
 +<code>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
  
-===== Testing =====+Gateway of last resort is not set 
 + 
 +     10.0.0.0/30 is subnetted, 3 subnets 
 +O       10.0.0.0 [110/128] via 10.0.1.1, 00:03:44, Serial0/1/0 
 +                 [110/128] via 10.0.2.1, 00:03:44, Serial0/0/0 
 +C       10.0.1.0 is directly connected, Serial0/1/0 
 +C       10.0.2.0 is directly connected, Serial0/0/0 
 +O    192.168.1.0/24 [110/65] via 10.0.1.1, 00:03:54, Serial0/1/0 
 +O    192.168.2.0/24 [110/65] via 10.0.2.1, 00:03:44, Serial0/0/0 
 +C    192.168.3.0/24 is directly connected, FastEthernet0/0 
 +</code> 
 +* **Test Ping PC to PC** 
 + 
 +<code> 
 +C:\>ping 192.168.2.2 
 + 
 +Pinging 192.168.2.2 with 32 bytes of data: 
 + 
 +Reply from 192.168.2.2: bytes=32 time=23ms TTL=126 
 +Reply from 192.168.2.2: bytes=32 time=32ms TTL=126 
 +Reply from 192.168.2.2: bytes=32 time=22ms TTL=126 
 +Reply from 192.168.2.2: bytes=32 time=31ms TTL=126 
 + 
 +Ping statistics for 192.168.2.2: 
 +    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), 
 +Approximate round trip times in milli-seconds: 
 +    Minimum = 22ms, Maximum = 32ms, Average = 27ms 
 + 
 +C:\>ping 192.168.3.2 
 + 
 +Pinging 192.168.3.2 with 32 bytes of data: 
 + 
 +Reply from 192.168.3.2: bytes=32 time=15ms TTL=126 
 +Reply from 192.168.3.2: bytes=32 time=13ms TTL=126 
 +Reply from 192.168.3.2: bytes=32 time=22ms TTL=126 
 +Reply from 192.168.3.2: bytes=32 time=13ms TTL=126 
 + 
 +Ping statistics for 192.168.3.2: 
 +    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), 
 +Approximate round trip times in milli-seconds: 
 +    Minimum = 13ms, Maximum = 22ms, Average = 15ms 
 +</code>
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  • Last modified: 2026/02/04 00:30
  • by ilyasa