Packet acceleration (SecureXL) identities connections by several attributes. Which of the attributes is NOT used for identifying connection?
Correct Answer: B
Explanation
SecureXL does not use the TCP acknowledgment number as an attribute for identifying connections.
SecureXL is a technology that accelerates the performance of the firewall by offloading some of the traffic processing from the firewall kernel to a more efficient path. SecureXL identifies connections by five attributes: source address, destination address, source port, destination port, and protocol1. These attributes are also known as the 5-tuple or the connection key. SecureXL uses these attributes to match packets to existing connections and apply the appropriate security policy and actions. SecureXL does not need to inspect the TCP sequence or acknowledgment numbers, as they are irrelevant for the connection identification and security enforcement2. The TCP sequence and acknowledgment numbers are used by the TCP protocol to ensure reliable and ordered delivery of data between endpoints