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Dell EMC Configuration Guide for the S3100 Series 9.14.2.4

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Route Leaking VRFs

Static routes can be used to redistribute routes between non-default to default/non-default VRF and vice-versa.

You can configure route leaking between two VRFs using the following command: ip route vrf x.x.x.x s.s.s.s nh.nh.nh.nh vrf default.

This command indicates that packets that are destined to x.x.x.x/s.s.s.s are reachable through nh.nh.nh.nh in the default VRF table. Meaning, the routes to x.x.x.x/s.s.s.s are leaked from the default VRF routing table into the non-default VRF routing table.

NOTE The Dell EMC Networking OS supports route leaking only for transit traffic. If the system receives a packet on one VRF which is destined to another VRF, the packet is routed to that destination. If the system receives a packet on one VRF which is destined to the same device (such as a ping), they system drops the packet.
The following example illustrates how route leaking between two VRFs can be performed:
interface GigabitEthernet 1/9
  ip vrf forwarding VRF1
  ip address 120.0.0.1/24
interface GigabitEthernet 1/10
  ip vrf forwarding VRF2
  ip address 140.0.0.1/24
ip route vrf VRF1 20.0.0.0/16 140.0.0.2 vrf VRF2
ip route vrf VRF2 40.0.0.0/16 120.0.0.2 vrf VRF1

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