Dream. Fight. Love. Live. Seize The Day!

Minggu, 11 November 2012

Lab 63. OSPF Summarization - Summary Address

Objective : Mempelajari cara melakukan summarization pada external route OSPF

OSPF External Route Summarization, Router R1 dikonfigurasikan EIGRP

ASBR (External Route) --> menggunakan perintah "summary-address"

Topologi Lab

Konfigurasi R1

interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback21
ip address 21.21.21.21 255.255.255.255
!
interface Loopback22
ip address 21.21.21.22 255.255.255.255
!
interface Loopback23
ip address 21.21.21.23 255.255.255.255
!
interface Loopback24
ip address 21.21.21.24 255.255.255.255
!
interface Loopback25
ip address 21.21.21.25 255.255.255.255
!
interface Loopback26
ip address 21.21.21.26 255.255.255.255
!
interface FastEthernet0/0
ip address 12.12.12.1 255.255.255.0
duplex auto
speed auto
!
router eigrp 12
network 21.21.21.21 0.0.0.0
network 21.21.21.22 0.0.0.0
network 21.21.21.23 0.0.0.0
network 21.21.21.24 0.0.0.0
network 21.21.21.25 0.0.0.0
network 21.21.21.26 0.0.0.0
no auto-summary
!
router ospf 1
router-id 1.1.1.1
redistribute eigrp 12 subnets
network 1.1.1.1 0.0.0.0 area 0
network 12.12.12.1 0.0.0.0 area 0
!

Konfigurasi R2

interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 12.12.12.2 255.255.255.0
duplex auto
speed auto
!
interface Serial1/0
ip address 23.23.23.1 255.255.255.0
serial restart-delay 0
!
router ospf 2
router-id 2.2.2.2
network 0.0.0.0 255.255.255.255 area 0
!

Konfigurasi R3

interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Serial0/0
ip address 23.23.23.2 255.255.255.0
serial restart-delay 0
!
router ospf 3
router-id 3.3.3.3
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

Verifikasi Lab

Cek routing tabel Router R2 dan R3 sebelum dilakukan summarization

Munculnya adalah E2 karena merupakan network eksternal OSPF

Konfigurasikan External Route Summarization di Router R1

Cek lagi routing tabel di Router R2 dan R3

Terlihat sekarang sudah ter summary

Periksa routing tabel pada Router R1

Pada OSPF, discard route akan otomatis muncul bila summary route dikonfigurasikan. Hal tersebut untuk menghindari terjadi adanya forwarding loop.

Lakukan test ping

Lab 62. OSPF Summary - Area Range

Objective : Mempelajari cara melakukan summarization pada Internal route OSPF.

Pada OSPF summarization hanya bisa dilakukan pada 2 tipe router, yakni

ABR (Internal Route) --> menggunakan perintah "area xx range"
ASBR (External Route) --> menggunakan perintah "summary-address"

Topologi Lab

Konfigurasi R1

interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback21
ip address 21.21.21.21 255.255.255.255
!
interface Loopback22
ip address 21.21.21.22 255.255.255.255
!
interface Loopback23
ip address 21.21.21.23 255.255.255.255
!
interface Loopback24
ip address 21.21.21.24 255.255.255.255
!
interface Loopback25
ip address 21.21.21.25 255.255.255.255
!
interface Loopback26
ip address 21.21.21.26 255.255.255.255
!
interface FastEthernet0/0
ip address 12.12.12.1 255.255.255.0
duplex auto
speed auto
!
router ospf 1
router-id 1.1.1.1
network 21.21.21.21 0.0.0.0 area 1
network 21.21.21.22 0.0.0.0 area 1
network 21.21.21.23 0.0.0.0 area 1
network 21.21.21.24 0.0.0.0 area 1
network 21.21.21.25 0.0.0.0 area 1
network 21.21.21.26 0.0.0.0 area 1
network 0.0.0.0 255.255.255.255 area 0
!

Konfigurasi R2

Konfigurasi R3

Verifikasi Lab

Cek routing tabel Router R2 dan R3

Konfigurasikan summarization di Router R1

Cek lagi routing tabel di Router R2 dan R3

Terlihat sekarang sudah ter summary kan.

Periksa routing tabel Router R1

Pada OSPF, discard route akan otomatis muncul bila summary route dikonfigurasikan. Hal tersebut untuk menghindari terjadi adanya forwarding loop.

Lab 61. OSPF Filtering - Administrative Distance

Objective : Mempelajari cara melakukan filtering route pada OSPF menggunakan nilai AD 255

Topologi Lab

Konfigurasi R1

interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface Loopback1
ip address 10.10.10.1 255.255.255.255
!
interface Loopback2
ip address 10.10.10.2 255.255.255.255
!
interface Loopback3
ip address 10.10.10.3 255.255.255.255
!
interface Loopback4
ip address 10.10.10.4 255.255.255.255
!
interface Loopback5
ip address 10.10.10.5 255.255.255.255
!
interface Loopback6
ip address 10.10.10.6 255.255.255.255
!
interface FastEthernet0/0
ip address 12.12.12.1 255.255.255.0
duplex auto
speed auto
!
router ospf 1
router-id 1.1.1.1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

Konfigurasi R2

interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 12.12.12.2 255.255.255.0
duplex auto
speed auto
!
interface Serial1/0
ip address 23.23.23.2 255.255.255.0
serial restart-delay 0
!
router ospf 2
router-id 2.2.2.2
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

Konfigurasi R3

interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Serial0/0
ip address 23.23.23.3 255.255.255.0
serial restart-delay 0
!
router ospf 3
router-id 3.3.3.3
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

Verifikasi Lab

Sebelum filtering, pastikan route 10.10.10.5/32 terdapat dalam routing tabel Router R3

Lakukan konfigurasi filtering

Cek routing tablenya lagi dan pastikan 10.10.10.5 tidak lagi terdapat dalam routing tabelnya.

Lab 60. OSPF Filtering - Distribute List

Objective : Mempelajari cara melakukan filtering route pada OSPF menggunakan distribute list

Topologi Lab

Konfigurasi R1

interface Loopback0

ip address 1.1.1.1 255.255.255.255

!
interface Loopback1
ip address 10.10.10.1 255.255.255.255
!
interface Loopback2
ip address 10.10.10.2 255.255.255.255
!
interface Loopback3
ip address 10.10.10.3 255.255.255.255
!
interface Loopback4
ip address 10.10.10.4 255.255.255.255
!
interface Loopback5
ip address 10.10.10.5 255.255.255.255
!
interface Loopback6
ip address 10.10.10.6 255.255.255.255
!
interface FastEthernet0/0
ip address 12.12.12.1 255.255.255.0
duplex auto
speed auto
!
router ospf 1
router-id 1.1.1.1
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

Konfigurasi R2

interface Loopback0
ip address 2.2.2.2 255.255.255.255
!
interface FastEthernet0/0
ip address 12.12.12.2 255.255.255.0
duplex auto
speed auto
!
interface Serial1/0
ip address 23.23.23.2 255.255.255.0
serial restart-delay 0
!
router ospf 2
router-id 2.2.2.2
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

Konfigurasi R3
!
interface Loopback0
ip address 3.3.3.3 255.255.255.255
!
interface Serial0/0
ip address 23.23.23.3 255.255.255.0
serial restart-delay 0
!
router ospf 3
router-id 3.3.3.3
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

Verifikasi Lab

Berikut routing tabel R2 sebelum dilakukan filtering

Dan berikut OSPF database pada R2 sebelum dilakukan filtering

Sekarang konfigurasikan filtering Distribute List agar yang boleh lewat hanya IP Genap saja

Cek kembali routing tabel dan OSPF database nya

Seperti yang terlihat didalam routing tabel pada R2 yang ada hanya ip yang genap saja sedangkan ip yang ganjil akan difilter.

dan yang paling penting diperhatikan ospf databasenya yang tidak berubah meski sudah di filter, hal tersebut dikarenakan pada OSPF, semua router dalam satu area memiliki database yang sama.

Cek di router lain

Semua router dalam satu area yang sama memiliki OSPF database yang sama.

Dan berikut routing tabel dari Router R3

Pada routing tabel maupun OSPF database nya tidak terpengaruh dengan adanya filtering route pada Router R2. Namun ketika ip yang ganjil tersebut diping maka akan muncul unreachable dikarenak ip ganjil tersebut telah di block pada Router R2.

Lab 59. OSPF Network Point to Multipoint Non Broadcast

Objective : Mempelajari tipe network Multipoint Non Broadcast pada OSPF Frame Relay

Topologi Lab

Konfigurasi R1

interface Loopback0

ip address 1.1.1.1 255.255.255.255

!
interface Serial0/0
encapsulation frame-relay

ip address 123.123.123.1 255.255.255.0

frame-relay map ip 123.123.123.2 102
frame-relay map ip 123.123.123.3 103
ip ospf network point-to-multipoint non-broadcast

!
router ospf 1
router-id 1.1.1.1
network 0.0.0.0 0.0.0.0 area 0
neighbor 123.123.123.2
neighbor 123.123.123.3
!

Konfigurasi R2

interface Loopback0

ip address 2.2.2.2 255.255.255.255

interface Serial0/0

encapsulation frame-relay
interface Serial0/0
ip address 123.123.123.2 255.255.255.0

frame-relay map ip 123.123.123.1 201
frame-relay map ip 123.123.123.3 201
ip ospf network point-to-multipoint non-broadcast
!
router ospf 2
router-id 2.2.2.2
network 0.0.0.0 0.0.0.0 area 0
!

Konfigurasi R3

interface Loopback0

ip address 3.3.3.3 255.255.255.255

interface Serial0/0
encapsulation frame-relay
interface Serial0/0

ip address 123.123.123.3 255.255.255.0

frame-relay map ip 123.123.123.1 301
frame-relay map ip 123.123.123.2 301
ip ospf network point-to-multipoint non-broadcast

router ospf 3
router-id 3.3.3.3
network 0.0.0.0 0.0.0.0 area 0
!

Verifikasi Lab

Periksa tipe network OSPF nya

Seperti yang terlihat tipe networknya yaitu Point-to-Multipoint. Namun kali ini untuk konfigurasi OSPF nya tanpa menggunakan broadcast ke router lain, melainkan dengan perintah neighbor x.x.x.x

Periksa routing tabelnya

Perhatikan pada routing tabelnya dimana network 123.123.123.x tidak dianggap sebagai directly connected seperti halnya pada OSPF Broadcast dan Non Broadcast melainkan via Serial0/0.

Cek OSPF Neighbor untuk mengetahui apakah ada DR/BDR atau tidak.

Terlihat pada tipe network OSPF Point to Multipoint Non Broadcast tidak terdapat DR maupun BDR.

Lakukan test ping

Lab 58. OSPF Network Point to Multipoint

Objective : Mempelajari tipe Network Point to Multipoint pada OSPF Frame Relay

Topologi nya sebagai berikut

Konfigurasi R1

interface Loopback0

ip address 1.1.1.1 255.255.255.255

interface Serial0/0

encapsulation frame-relay

ip address 123.123.123.1 255.255.255.0

frame-relay map ip 123.123.123.2 102 broadcast

frame-relay map ip 123.123.123.3 103 broadcast

router ospf 1

router-id 1.1.1.1

network 0.0.0.0 0.0.0.0 area 0

Konfigurasi R2

interface Loopback0

ip address 2.2.2.2 255.255.255.255

interface Serial0/0

encapsulation frame-relay

interface Serial0/0

ip address 123.123.123.2 255.255.255.0

frame-relay map ip 123.123.123.1 201 broadcast

frame-relay map ip 123.123.123.3 201

ip ospf network point-to-multipoint

router ospf 2

router-id 2.2.2.2

network 0.0.0.0 0.0.0.0 area 0

Konfigurasi R3

interface Loopback0

ip address 3.3.3.3 255.255.255.255

interface Serial0/0

encapsulation frame-relay

interface Serial0/0

ip address 123.123.123.3 255.255.255.0

frame-relay map ip 123.123.123.1 301 broadcast

frame-relay map ip 123.123.123.2 301

ip ospf network point-to-multipoint

router ospf 3

router-id 3.3.3.3

network 0.0.0.0 0.0.0.0 area 0

Verifikasi Lab

Cek tipe network OSPF nya

Seperti yang terlihat tipe networknya yaitu Point-to-Multipoint.

Cek routing tabel nya

Perhatikan pada routing tabelnya dimana network 123.123.123.x tidak dianggap sebagai directly connected seperti halnya pada OSPF Broadcast dan Non Broadcast melainkan via Serial0/0.

Cek OSPF Neighbor untuk mengetahui apakah ada DR/BDR atau tidak.