Chapter 6. IP Security in Practice

Claims that IPv4 security was neglected by the founders are based on the argument that early IPv4 networks were insecure things strung together on trust between naive but ultimately honorable academicians. However, at the very start the Internet Protocol was defined as a U.S. Department of Defense (DoD) standard, and security was certainly a consideration. Nevertheless, the IETF has given considerably more explicit attention to IPv6 security than was accorded to IPv4 during its early development.

The desirability and utility of authentication and security features at the IP layer have been debated for years. This chapter discusses how authentication and security, including secure password transmission, encryption, ...

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