System and method for filtering communications at a network interface controller

An information handling system, comprising:

• a network interface controller;
• a baseboard management controller coupled to the network interface controller;
• wherein the baseboard management controller is operable to send a request;
• wherein the network interface controller is operable to filter communications packets to the baseboard management controller on the basis of a determination of whether the baseboard management controller caused the issuance of the communications packet in response to the request;
• wherein the communications packet comprises a first address field of an intended addressee of the communication and a second address field of an address of an addressee that generated the communication;
• and
• wherein the network interface controller does not pass a communications packet to the baseboard management controller unless the address of the second address field matches an address of the baseboard management controller included in a first register.

A method for filtering communications packet to a baseboard management controller, comprising:

• providing a network interface controller, wherein the network interface controller is coupled to the baseboard management controller;
• providing the network interface controller with a first value and a second value, wherein the first value points to a location within the communications packet, and wherein the second value represents the address of the baseboard management controller;
• sending a request by the baseboard management controller;
• setting the first value to point to a location within the communications packet that identifies the address of the baseboard management controller that caused the communications packet to be generated in response to the request;
• receiving a communications packet at the network interface controller;
• comparing the address at the location of the first value to the second value;
• and
• transmitting the communications packet to the baseboard management controller if the address at the location pointed to by the first value matches the second value.