Patent ID: 8417806

Claim:
A network device comprising: a first port coupled to a first end point device; a second port coupled to a second end point device; and an access control list comprising a first access control entry, the first access control entry being operable to cause the network device to permit log in frames to be forwarded from the first end point device to the second end point device; wherein the network device is operable to: receive a first frame from the first end point device on the first port, the first frame being addressed to the second end point device; determine a frame type for the first frame; if the frame type of the first frame is not a log in frame, then drop the first frame, based upon the first access control entry; and if the frame type of the first frame is a log in frame, then: forward the first frame to the second end point device; and add a second access control entry to the access control list, the second access control entry being operable to cause the network device to permit data frames to be forwarded from the first end point device to the second end point device.