F-Tile Low Latency Ethernet 10G MAC Intel® FPGA IP User Guide

ID 720985
Date 4/01/2022
Public

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4.5.8. RX Promiscuous (Transparent) Mode

In receive path promiscuous mode, a valid received packet is not checked whether it is intended for this MAC, that is the "Destination Address" field of the packet is not compared against the pre-programmed primary MAC address and supplementary addresses (if this feature is enabled).

This can be achieved by setting various register fields to:

  • Enable acceptance of all received unicast frames
  • Enable acceptance of all multicast frames

A packet with broadcast address is always accepted by the MAC.

Under the RX promiscuous mode, the START, PREAMBLE, SFD, EFD, and IDLE characters are always stripped off by the MAC during decapsulation process.