Cisco | Policy Based Routing

 

Konfig semua router

hostname R1
int lo0
ip add 1.1.1.1 255.255.255.255
exit

int gi0/0
 descr "link-to-R2"
 no shut
  ip add 10.0.1.1 255.255.255.252
exit
ip route 0.0.0.0 0.0.0.0 10.0.1.2

------------

hostname R2
int lo0
ip add 2.2.2.2 255.255.255.255
exit

int gi0/0
 descr "link-to-R2"
 no shut
  ip add 10.0.1.2 255.255.255.252
exit

int gi0/1
 descr "link-to-R3"
 no shut
 ip add 10.0.2.2 255.255.255.252
exit

int gi0/2
 descr "link-to-R4"
 no shut
 ip add 10.0.3.2 255.255.255.252
exit

ip route 10.100.100.0 255.255.255.0 10.0.2.1 10 name Next_Hop_R3 1
ip route 10.100.100.0 255.255.255.0 10.0.3.1 11 name Next_Hop_R4 2

router ospf 2
 router-id 2.2.2.2
network 2.2.2.2 0.0.0.0 area 1
network 10.0.1.2 0.0.0.0 area 0
network 10.0.2.2 0.0.0.0 area 1
network 10.0.3.2 0.0.0.0 area 1
exit
---------------------------
hostname R3
int lo0
ip add 3.3.3.3 255.255.255.255
exit

int gi0/0
 descr "link-to-R2"
 no shut
  ip add 10.0.2.1 255.255.255.252
exit

int gi0/1
 descr "link-to-Porduction"
 no shut
  ip add 10.100.100.1 255.255.255.0
exit

ip route 0.0.0.0 0.0.0.0 10.0.2.2

---------------

hostname R4
int lo0
ip add 4.4.4.4 255.255.255.255
exit

int gi0/0
 descr "link-to-R2"
 no shut
  ip add 10.0.3.1 255.255.255.252
exit

int gi0/1
 descr "link-to-Porduction"
 no shut
  ip add 10.100.100.2 255.255.255.0
exit

ip route 0.0.0.0 0.0.0.0 10.0.3.2

-------------------------
TAMBAHAN KONFIG GLBP (R3 DAN R4)
R3
interface gi0/1
glbp 1 ip 10.100.100.254
glbp 1 preempt
glbp 1 priority 110
glbp 1 load-balancing round-robin
glbp 1 authentication md5 key-string cisco

R4
interface gi0/1
glbp 1 ip 10.100.100.254
glbp 1 preempt
glbp 1 load-balancing round-robin
glbp 1 authentication md5 key-string cisco

Lalu Verifkasi di R1
Lakukan ping, dan trace dari R1 (10.0.1.1) menuju 10.100.100.100 lewat dari mana?.

 

Dari srenshot diatas bahwa dari R1 menuju ke 10.100.100.100 lewat R3.Sekarng kt mau dia lewat R4. Berikut commadnya

R2
access-list 1 permit host 10.0.1.1
route-map PBR match ip address 1
set ip next-hop 10.0.3.1
exit

interface gi0/0
decription ## link to R1##

ip policy route-map PBR

VERIFIKASI DI R1

 

 

Nampak bahwa dari 10.0.1.1 menuju 10.100.100.100.254 sudah melewati R4

Verifikasi di R2 dan Cek packet PBR.

 

SKENARIO-2.

Di skenario ini bagimana caranya supaya IP loopback R2 (2.2.2.2) menuju 10.100.100.100 melewati R4. Nah Secara default ip loopback2 melewati R3.

Begini Commandnya:

R2

access-list 100 permit ip host 2.2.2.2 host 10.100.100.100
route-map PBR2
match ip address 100
exit

ip local policy route-map PBR2
exit

Berbagi :