Cisco APIC Layer 3 Networking Configuration Guide, Release 6.2(x)

Dataplane IP Address Learning

Updated: April 17, 2026

Describes how static routes in pervasive bridge domains provide reachability to IP addresses outside the bridge domain and explains how to configure them using the GUI

This chapter contains the following sections:

Overview of dataplane IP address learning

Describes how the ACI fabric learns endpoint IP addresses through the dataplane and provides granular control of address learning within VRF instances.

Guidelines and limitations for dataplane IP address learning

Describes the operational guidelines and functional limitations for dataplane IP address learning across VRF instances, bridge domains, and EPG subnets. These constraints ensure proper endpoint management and traffic policy enforcement within the network fabric.

Feature interaction for dataplane IP address learning being disabled

Describes how disabling dataplane IP address learning affects the behavior of other network features. This information helps administrators understand potential impacts on traffic flow and endpoint tracking.

Configure dataplane IP address learning per VRF instance using the GUI

Configures dataplane IP address learning settings for a specific VRF instance. This procedure allows administrators to enable or disable the learning process within the tenant networking configuration.

Configure dataplane IP address learning per endpoint using the GUI

Enables or disables dataplane IP address learning for an endpoint of the chosen endpoint group. This configuration is available only when the EPG subnet IP address has a mask of /32 for an IPv4 address or /128 for an IPv6 address.

Configure dataplane IP address learning per subnet using the GUI

Configures dataplane IP address learning for a specific subnet within the GUI. This feature is enabled by default for all subnets.

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