Internet Protocol security (IPSec) is a framework of open standards for ensuring private, secure communications over Internet Protocol (IP) networks, through the use of cryptographic security services.

For tips about using IPSec, see IPSec Best practices.
For help with specific tasks, see IPSec How To....
For general background information, see IPSec Concepts.
For problem-solving instructions, see IPSec Troubleshooting.

Note

Portions of IPSec-related services were jointly developed by Microsoft® and Cisco Systems, Inc.

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