Core Issue
How to configure default routing so different default routes are used based on the source of the packet, such as based on which devices or users are originating the packets. The default route is already configured on the router, and you want to policy route certain users to different Internet Service Providers (ISPs).
Resolution
Issue the set ip default next-hop command in the route-map command configuration mode.Configure Policy-Based Routing (PBR) specifying a different default IP next hop for interested traffic by issuing a route-map command. This is a sample configuration for the traffic sourced from 10.1.1.0/24, coming in on interface Ethernet0, policy routed to next-hop x.x.x.x:
int Ethernet0
ip address 10.1.1.1 255.255.255.0
ip policy-map new-gateway
route-map new-gateway permit 10
match ip address 10
set ip default next-hop x.x.x.x
access-list 10 permit 10.1.1.0 0.0.0.255
Note: The traffic that does not match the policy uses the default route configured in the router.
For more information on PBR, refer to
Configuring IP Routing Protocol-Independent Features
Policy Based Routing.
For more information on default routes, refer to Configuring a Gateway of Last Resort Using IP Commands.
Problem Type
Policy Based Routing (PBR) issues
Configure
RP (Routing Protocol) Related Technologies
Policy-based routing
