Patent ID: 6894981
Filing Date: 2005-05-17
Classification: H04L

Abstract:
1. A method of transparently proxying a connection to a protected machine comprising: intercepting at a proxy machine a communication packet directed to the protected machine, the communication packet comprising a communication packet source address, a communication packet source port number, a communication packet destination address, and a communication packet destination port number, the communication packet not being addressed to the proxy machine by the originator of the communication packet under any network communication protocol; determining to proxy a proxied connection associated with the communication packet based on the communication packet source address and the communication packet source port number; and terminating a protected connection from the proxy machine to the protected machine, the protected machine corresponding to the communication packet destination address and the communication packet destination port number, each communication sent from the proxy machine to the protected machine as part of the protected connection comprising a header in which the source address and the source port number are the same as the communication packet source address and the communication packet source port number.