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Cisco ACI Cookbook by Stuart Fordham

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Creating a DHCP relay

By default, ACI-wide flooding is disabled. Because flooding is disabled, connecting to a DHCP server is only possible if it is in the same EPG as the client (as flooding within a bridge domain is enabled).

The options, therefore, are to have one DHCP server per-EPG, which would be wasteful on "compute" resources and on administrative time, or to use a DHCP relay and have one, central, server.

In this recipe, we will be setting up a DHCP relay.

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