Konfigurasi Multiarea OSPF

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Configuring Multiarea OSPFv2
Addressing Table

Device
Interface
IP Address
Subnet Mask
OSPFv2 Area
R1
G0/0
10.1.1.1
255.255.255.0
1
G0/1
10.1.2.1
255.255.255.0
1
S0/0/0
192.168.10.2
255.255.255.252
0
R2
G0/0
10.2.1.1
255.255.255.0
0
S0/0/0
192.168.10.1
255.255.255.252
0
S0/0/1
192.168.10.5
255.255.255.252
0
R3
G0/0
192.168.2.1
255.255.255.0
2
G0/1
192.168.1.1
255.255.255.0
2
S0/0/1
192.168.10.6
255.255.255.252
0
Objectives
Part 1: Configure Multiarea OSPFv2
Part 2: Verify and Examine Multiarea OSPFv2
Background
In this activity, you will configure multiarea OSPFv2. The network is already connected and interfaces are configured with IPv4 addressing. Your job is to enable multiarea OSPFv2, verify connectivity, and examine the operation of multiarea OSPFv2.
Part 1:     Configure OSPFv2
Step 1:     Configure OSPFv2 on R1.
Configure OSPFv2 on R1 with a process ID of 1 and a router ID of 1.1.1.1.
Konfigurasi Router OSPFv2 Di R1
R1>en
R1#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#router OSPF 1

Step 2:     Advertise each directly connected network in OSPFv2 on R1.
Configure each network in OSPFv2 assigning areas according to the Addressing Table.
R1(config-router)# network 10.1.1.0 0.0.0.255 area 1
R1(config-router)# network 10.1.2.0 0.0.0.255 area 1
R1(config-router)# network 192.168.10.0 0.0.0.3 area 0
Peritah selanjutnya yang dilakukan di R1
R1(config-router)#router-id 1.1.1.1
R1(config-router)#net 10.1.1.0 0.0.0.255 area 1
R1(config-router)#net 10.1.2.0 0.0.0.255 area 1
R1(config-router)#net 192.168.10.0 0.0.0.3 area 0

Step 3:     Configure OSPFv2 on R2 and R3.
Repeat the steps above for R2 and R3 using a router ID of 2.2.2.2 and 3.3.3.3, respectively.

Part 2:     Verify and Examine Multiarea OSPFv2
Step 1:     Verify connectivity to each of the OSPFv2 areas.
From R1, ping each of the following remote devices in area 0 and area 2: 192.168.1.2, 192.168.2.2, and 10.2.1.2.
Konfigurasi Router OSPFv2 Di R2
R2>en
R2#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#router OSPF 1
R2(config-router)#router-id 2.2.2.2

R2(config-router)#net 10.2.1.0 0.0.0.255 area 0
R2(config-router)#net 192.168.10.0 0.0.0.3 area 0
R2(config-router)#net 192.168.10.4 0.0.0.3 area 0

Konfigurasi Router OSPFv2 Di R2
R3>en
R3#conf t
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#router OSPF 1
R3(config-router)#router-id 3.3.3.3
R3(config-router)#net 192.168.2.0 0.0.0.255 area 2
R3(config-router)#net 192.168.1.0 0.0.0.255 area 2
R3(config-router)#net 192.168.10.4 0.0.0.255 area 0

Step 2:     Use show commands to examine the current OSPFv2 operations.
Use the following commands to gather information about your OSPFv2 multiarea implementation.
show ip protocols
show ip route
show ip ospf database
show ip ospf interface
show ip ospf neighbor


Step 3:     show commands.
1.Show Ip Protocols
           
show ip protocols
R1 ­


R2

R3
 

2.Show Ip Route

show ip route
R1

R2
R3


  3.Show Ip Ospf Database
show ip ospf database
R1


R2

R3


  4.Show Ip Ospf Inteface
 
show ip ospf interface
R1

R2
 
R3

  5.Show Ip Ospf Neighbor
show ip ospf neighbor
R1
R2
R3
Reflection Questions
1.     Which router(s) are internal routers?
      R2
2.     Which router(s) are backbone routers?
      R1, R2, dan R3 semuanya adalah router backbone
3.     Which router(s) are area border routers?
       R1 and R3
4.     Which router(s) are autonomous system routers?
      Tidak ada, semua antarmuka aktif pada ketiga koneksi routes ke area OSPF
5.     Which routers are generating Type 1 LSAs?
      Semua router OSPF menghasilkan LSA Tipe 1
6.     Which routers are generating Type 2 LSAs ?
      Router tersembunyi di masing-masing area yang berada di DR adalah. Id router 4.4.4.4, 5.5.5.5, 6.6.6.6, 9.9.9.9
7.     Which routers are generating Type 3 LSAs?
      R1 dan R3 karena masing-masing adalah ABR dan perlu informasi daerah banjir dari satu daerah ke area lainnya.
8.     Which routers are generating Type 4 and 5 LSAs?
      Tidak ada, karena tidak ada ASBR di jaringan
9.     How many inter area routes does each router have?
      R1 dan R3 memiliki dua IAS dan R2 yang memiliki 4 IAS
10.  Why would there usually be an ASBR in this type of network?
      karena ASBR digunakan untuk menghubungkan domain routing eksternal

 Terima kasih sudah mengunjungi.




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