System and method for automatic wireless connections between server management controllers to set up a secure proxy channel

1. An information handling system, comprising:

a management system;

a first baseboard management controller (BMC) including a first wireless interface, the first BMC coupled via a first wired interface to the management system; and

a second BMC including a second wireless interface, the second BMC coupled via a second wired interface to the management system;

wherein the information handling system is configured to:

detect that the BMC has become uncoupled from the management system via the first wired interface;

establish a wireless link between the first wireless interface and the second wireless interface in response to detecting that the first BMC has become uncoupled from the management system; and

provide management between the first BMC and the management system via the second wired interface and the wireless link.

2. The information handling system of claim 1 , wherein, the management system is configured to:

detect that the first BMC has become uncoupled from the management system; and

direct the second BMC to establish the wireless link.

3. The information handling system of claim 2 , wherein, in establishing the wireless link:

the second BMC is configured to send a beacon to from the second wireless interface to the first wireless interface; and

the first BMC is configured to determine whether the second BMC is a trusted device based upon the beacon.

4. The information handling system of claim 3 , wherein:

the beacon includes information identifying the second BMC;

the first BMC includes the information in a white list; and

the first BMC determines that the second BMC is a trusted device based upon the information being in the white list.

5. The information handling system of claim 3 , wherein:

the first and second BMCs each include a shared security key;

the beacon includes authentication information encoded by the second BMC with the shared security key;

the first BMC decodes the encoded authentication information with the shared security key; and

the first BMC determines that the second BMC is a trusted device based upon the authentication information.

6. The information handling system of claim 3 , wherein, in establishing the wireless link:

the first BMC is further configured to provide a response to the beacon when the first BMC determines that the second BMC is a trusted device, the response operable to establish the wireless link.

7. The information handling system of claim 1 , wherein, the first BMC is configured to:

detect that the first BMC has become uncoupled from the management system; and

send a beacon to from the first wireless interface to the second wireless interface.

8. The information handling system of claim 7 , wherein the second BMC is configured to determine whether the first BMC is a trusted device based upon the beacon.

9. The information handling system of claim 1 , wherein the first and second wireless interfaces comprise Bluetooth interfaces.

10. A method, comprising:

coupling a first baseboard management controller (BMC) to a management system via a first wired interface, wherein the first BMC includes a first wireless interface;

coupling a second BMC to the management system via a second wired interface, wherein the second BMC includes a second wireless interface;

detecting that the BMC has become uncoupled from the management system via the first wired interface;

establishing a wireless link between the first wireless interface and the second wireless interface in response to detecting that the first BMC has become uncoupled from the management system; and

providing management between the first BMC and the management system via the second wired interface and the wireless link.

11. The method of claim 10 , wherein, further comprising:

detecting, by the management system, that the first BMC has become uncoupled from the management system; and

directing, by the management system, the second BMC to establish the wireless link.

12. The method of claim 11 , wherein, in establishing the wireless link, the method further comprises:

sending, by the second BMC, a beacon to from the second wireless interface to the first wireless interface; and

determining, by the first BMC, whether the second BMC is a trusted device based upon the beacon.

13. The method of claim 12 , wherein:

the beacon includes information identifying the second BMC;

the first BMC includes the information in a white list; and

the first BMC determines that the second BMC is a trusted device based upon the information being in the white list.

14. The method of claim 12 , wherein:

the first and second BMCs each include a shared security key;

the method further comprises:

encoding, by the second BMC, the beacon to include authentication information encoded with the shared security key;

decoding, by the first BMC, the encoded authentication information with the shared security key; and

determining, by the first BMC, that the second BMC is a trusted device based upon the authentication information.

15. The method of claim 12 , wherein, in establishing the wireless link, the method further comprises:

providing, by the first BMC, a response to the beacon when the first BMC determines that the second BMC is a trusted device, the response operable to establish the wireless link.

16. The method of claim 10 , wherein, further comprising:

detecting, by the first BMC, that the first BMC has become uncoupled from the management system; and

sending, by the first BMC, a beacon to from the first wireless interface to the second wireless interface.

17. The method of claim 16 , further comprising:

determining, by the second BMC, whether the first BMC is a trusted device based upon the beacon.

18. The method of claim 10 , wherein the first and second wireless interfaces comprise Bluetooth interfaces.