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Introduce second default gateway into policy-based routing and optimization

Questions:

1) How to get the second PBR_DEFAULT_GATEWAY address 10.20.20.3 into the policy-based routing for redundancy?

2) Any optimizations as more and more traffic (policy-based routed and otherwise) goes through interface Gi1/0/1?

Address range A.B.0.0/16 represents assigned Internet-routable addresses.

Network also uses 10.0.0.0/8, 172.16.0.0/20, 192.168.0.0/16.

DEFAULT_GATEWAY router participates in OSPF and injects the default routes 0.0.0.0/0 10.10.10.1 and 0.0.0.0/0 10.20.20.1 into OSPF.

PBR_DEFAULT_GATEWAY router participates in OSPF but filters out default routes injected by DEFAULT_GATEWAY router.

ROUTER_A participates in OSPF and receives default routes injected by DEFAULT_GATEWAY router.

ROUTER_A contains the attached policy-routing configuration that allows the subnet A.B.30.0/24 to route anywhere on the network and uses PBR_DEFAULT_GATEWAY as the way out.

 

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