This chapter contains the following sections:
Proxy ARP
Describes how Proxy ARP in Cisco ACI facilitates endpoint communication within a subnet by responding to ARP requests on behalf of unknown MAC addresses, illustrating the ARP request and response process between virtual machines and the ACI fabric.
Guidelines and Limitations
This topic explains the guidelines and limitations to consider when using Proxy ARP, including supported configurations and communication behaviors for isolated and regular endpoints.
Proxy ARP Supported Combinations
This topic explains the supported combinations for Proxy ARP between Regular EPG and Isolated Enforced EPG with Proxy ARP.
Configure Proxy ARP Using the Advanced GUI
Learn how to enable Proxy ARP for an EPG using the Advanced GUI. This procedure guides you through the required prerequisites and step-by-step configuration in the interface.
Configure Proxy ARP Using the Cisco NX-OS Style CLI
Learn how to configure proxy ARP using the Cisco NX-OS style CLI. This procedure enables proxy ARP on a specified EPG within your Cisco ACI environment.
Local proxy ARP
Local proxy Address Resolution Protocol (ARP) routes same-subnet traffic through the Cisco Application Centric Infrastructure (ACI) fabric so that IP-based security policies can be applied.