Policy Based Routing
1.) Override the instruction of the routing table using PBR
2.) Specific traffic to be routed differently from the routing table, maybe for security reasons,
performance reasons or some sort of structure design reasons.
Example: Manipulate route of host 192.168.1.100 to go over
ISP2 if going to host 100.0.0.100.
STEP1 Create ACL
R1
Router(config)#ip access-list extended ACL-PBR
Router(config-ext-nacl)#permit ip host 192.168.1.100 host 100.0.0.100
STEP2 Create Route-Map
R1
Router(config)#route-map PBR
Router(config-route-map)#match ip address ACL-PBR
Router(config-route-map)#set ip next-hop 60.0.0.1
STEP3 Create Policy (Local PBR)
R1
Router(config)#int e0/2
Router(config-if)#ip policy route-map PBR
Verify:
Trace route from PC1 to Server