Dell EMC SmartFabric OS10 User Guide Release 10.5.0

Static route leaking

Route leaking enables routes that are configured in a default or non-default VRF instance to be made available to another VRF instance. You can leak routes from a source VRF instance to a destination VRF instance.

The routes need to be leaked in both source and destination VRFs to achieve end-to-end traffic flow.

If there are any connected routes in the same subnet as statically leaked routes, then the connected routes take precedence.

In static route leaking, DHCP functionality does not work for overlapping subnets. For example, if two interfaces on different VRFs are on the same subnet and are configured with the same DHCP server, then only one of those interfaces gets an IP address. The other interface does not get an IP address because the client requests from the two interfaces have the same MAC and subnet addresses. The server does not have any unique parameter to differentiate that the request is from two different clients.