Junos OS supports the IP Security (IPsec) associations and the
Internet Key Exchange (IKE) security services features. The IPsec
suite provides network layer data security with functions such as
authentication of origin, data integrity, confidentiality, replay
protection, and nonrepudiation of source. IKE defines mechanisms for
key generation and exchange and manages security associations (SAs).
An SA is a simplex connection that allows two hosts to communicate
with each other securely by means of IPsec. Use the topics in this
section to configure essential security services.
Junos OS System Basics Configuration
Guide
