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The lack of embedded security within the IPv4 protocol has led to the many attacks seen today. Mechanisms to secure IPv4 do exist, but there are no requirements for their use [6]. IPsec is a specific mechanism used to secure the protocol. IPsec secures the packet payloads by means of cryptography. IPsec provides the services of confidentiality, integrity, and authentication [6]. This form of protection does not account for the skilled hacker who may be able to break the encryption method and obtain the key. When internet was created, the quality of service (QoS) was standardized according to the information that was transferred across the network. The original transfer of information was mostly text‐based. As the internet expanded and technology evolved, other forms of communication began to be transmitted across the internet. The quality of service for streaming videos and music are much different than the standard . | Software Group Enterprise Networking and Transformation Solutions ENTS CS z OS Network Security Configuration Assistant GUI 1 2 IBM Software Group Enterprise Networking and Transformation Solutions CS z OS configuration GUI overview 2005 IBM Corporation
