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CCNP ISCW Quick Reference Sheets by Jay Swan, Denise Donohue - CCIE No. 9566

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Chapter 4. IPsec

IP Security, or IPsec, is a set of rules for securing data communications across a public, untrusted network such as the Internet. It provides the following:

  • Data confidentiality by encrypting portions of a packet

  • Data integrity by ensuring the packet has not been altered in transit

  • Data source authentication ...

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