Konfigurasi Multi Area OSPF dengan Cisco dan Mikrotik

Konfigurasi Multi Area OSPF dengan Cisco dan Mikrotik


Pada lab ini nanti kita akan membuat dua area OSPF, yaitu area 1 dan area backbone. Kedua area ini dihubungkan oleh R1 yang sekaligus berfungsi sebagai ABR (Area Border Router).
Langkah pertama adalah konfigurasi ip address dari masing-masing Router setelah itu lakukan seperti pada langkah dibawah ini

Aktifkan Routing Protocol OSPF di Mikrotik

[admin@Mikrotik] >routing ospf interface

[admin@Mikrotik] /routing ospf interface> add interface=ether2  (Pada Mikrotik GNS3 interfacenya e1)

[admin@Mikrotik] /routing ospf interface>pr

 

Flags: X - disabled, I - inactive, D - dynamic, P - passive

 #    INTERFACE                  COST         PRIORITY              NETWORK-TYPE   AUTHENTICATION AUTHENTICATION-KEY

 0    ether1                            10                    1                               Default                   none

 

 Konfigurasi Routing OSPF Instance dan Router-ID R1

 [admin@Mikrotik] >routing ospf instance set default router-id=10.1.1.1

[admin@Mikrotik] >routing ospf instance pr

Flags: X - disabled, * - default

 0  * name="default" router-id=10.1.1.1 distribute-default=never redistribute-connected=no

      redistribute-static=no redistribute-rip=no redistribute-bgp=no redistribute-other-ospf=no

      metric-default=1 metric-connected=20 metric-static=20 metric-rip=20 metric-bgp=auto

      metric-other-ospf=auto in-filter=ospf-in out-filter=ospf-out

 

Advertise network di Mikrotik

[admin@Mikrotik] >routing ospf network

[admin@Mikrotik] /routing ospf network >add network=10.10.20.0/24 area=backbone

[admin@Mikrotik] /routing ospf network >add network=10.10.50.0/24 area=backbone

 [admin@MikroTik] > routing ospf network pr

 Flags: X - disabled, I - invalid

 #   NETWORK            AREA                                                                                  

 0   10.10.20.0/24      backbone                                                                             

 1   10.10.50.0/24      backbone 


Konfigurasi OSPF di Cisco R1 dan Advertise network R1

R1(config-if)#router ospf 1

R1(config-router)#router-id 10.2.2.2

R1(config-router)#network 10.10.20.0 0.0.0.255 area 0

R1(config-router)#network 10.10.40.0 0.0.0.255 area 0

R1(config-router)#network 10.10.60.0 0.0.0.255 area 1

 

Konfigurasi OSPF di Cisco R2 dan Advertise network R2

R1(config-if)#router ospf 1

R1(config-router)#router-id 10.3.3.3

R1(config-router)#network 10.10.60.0 0.0.0.255 area 1

R1(config-router)#network 10.10.60.0 0.0.0.255 area 2

 

Konfigurasi VPCS untuk PC1, PC2 dan PC3

PC1> ip 10.10.50.2/24 10.10.50.1

Checking for duplicate address...

PC1 : 10.10.50.2 255.255.255.0 gateway 10.10.50.1

 

PC2> ip 10.10.40.2/24 10.10.40.1

Checking for duplicate address...

PC1 : 10.10.40.2 255.255.255.0 gateway 10.10.40.1

 

 PC3> ip 10.10.70.2/24 10.10.70.1

Checking for duplicate address...

PC1 : 10.10.70.2 255.255.255.0 gateway 10.10.70.1

 

Tahap Pengujian

Untuk dapat mengetahui apakah routing OSPF sudah melakukan pekerjaannya untuk mengirimkan LSA (Link State Advertisement) dan mendapatkan informasi network dari seluruh routing table di masing-masing router, maka kita cek routing table masing masing router


Routing table di Mikrotik

[admin@MikroTik] > ip ro pr

 Flags: X - disabled, A - active, D - dynamic, C - connect, S - static, r - rip, b - bgp, o - ospf, m - mme,

B - blackhole, U - unreachable, P - prohibit

 #             DST-ADDRESS        PREF-SRC                    GATEWAY            DISTANCE

 0   ADC    10.10.10.0/24           10.10.10.1           ether1                         0

 1   ADC    10.10.20.0/24           10.10.20.1           ether2                         0

 2   ADo     10.10.40.0/24                                   10.10.20.2                     110

 3   ADC    10.10.50.0/24             10.10.50.1        ether3                         0

 4   ADo     10.10.60.0/24                                   10.10.20.2                     110

 5   ADo     10.10.70.0/24                                   10.10.20.2                     10

 

Routing table di R1

R1#sh ip ro
Codes: C - connected, S - static, 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
       i - IS-IS, su - IS-IS summary, 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

     10.0.0.0/24 is subnetted, 5 subnets
C       10.10.20.0 is directly connected, FastEthernet0/0
C       10.10.40.0 is directly connected, FastEthernet2/0
O       10.10.50.0 [110/11] via 10.10.20.1, 01:12:33, FastEthernet0/0
C       10.10.60.0 is directly connected, FastEthernet1/0
O       10.10.70.0 [110/2] via 10.10.60.2, 01:12:33, FastEthernet1/0


Routing table di R2

R2(config-router)#do sh ip ro
Codes: C - connected, S - static, 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
       i - IS-IS, su - IS-IS summary, 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

     10.0.0.0/24 is subnetted, 5 subnets
O IA    10.10.20.0 [110/2] via 10.10.60.1, 01:13:26, FastEthernet1/0
O IA    10.10.40.0 [110/2] via 10.10.60.1, 01:13:26, FastEthernet1/0
O IA    10.10.50.0 [110/12] via 10.10.60.1, 01:13:26, FastEthernet1/0
C       10.10.60.0 is directly connected, FastEthernet1/0
C       10.10.70.0 is directly connected, FastEthernet0/0


TEST PING DAN TRACER DARI PC1 ke PC3

PC1> trace 10.10.70.2
trace to 10.10.70.2, 8 hops max, press Ctrl+C to stop
 1   10.10.50.1   0.500 ms  1.501 ms  0.500 ms
 2   10.10.20.2   7.001 ms  10.501 ms  16.002 ms
 3   10.10.60.2   82.511 ms  26.003 ms  26.003 ms
 4   *10.10.70.2   92.012 ms (ICMP type:3, code:3, Destination port unreachable)



PC1> ping 10.10.70.2
84 bytes from 10.10.70.2 icmp_seq=1 ttl=61 time=41.005 ms
84 bytes from 10.10.70.2 icmp_seq=2 ttl=61 time=35.004 ms
84 bytes from 10.10.70.2 icmp_seq=3 ttl=61 time=43.506 ms
84 bytes from 10.10.70.2 icmp_seq=4 ttl=61 time=58.007 ms
84 bytes from 10.10.70.2 icmp_seq=5 ttl=61 time=54.507 ms


TEST PING DAN TRACER DARI PC 3 ke PC1
PC3> tracer 10.10.50.2
trace to 10.10.50.2, 8 hops max, press Ctrl+C to stop
 1   10.10.70.1   10.001 ms  7.001 ms  11.501 ms
 2   10.10.60.1   130.016 ms  37.005 ms  71.009 ms
 3   10.10.20.1   56.507 ms  38.505 ms  58.007 ms
 4   *10.10.50.2   71.009 ms (ICMP type:3, code:3, Destination port unreachable)

PC3> ping 10.10.50.2
84 bytes from 10.10.50.2 icmp_seq=1 ttl=61 time=26.503 ms
84 bytes from 10.10.50.2 icmp_seq=2 ttl=61 time=55.007 ms
84 bytes from 10.10.50.2 icmp_seq=3 ttl=61 time=26.504 ms
84 bytes from 10.10.50.2 icmp_seq=4 ttl=61 time=55.007 ms
84 bytes from 10.10.50.2 icmp_seq=5 ttl=61 time=62.008 ms





--------------------------- TERIMA KASIH -----------------------


Komentar

  1. Bagus blog & artikelnya pak, sangat bermanfaat untuk saya yg sedang fokus di bidang network... :)

    BalasHapus

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