Day 22. IPsec Technologies
CCNA Security 210-260 IINS Exam Topics
3.1.a Describe IPsec protocols and delivery modes (IKE, ESP, AH, tunnel mode, transport mode)
Key Topics
Today we will focus on the fundamentals of virtual private network (VPN) technologies, as well as look in detail at the building blocks behind Internet Protocol security (IPsec).
VPNs
A VPN provides security services to traffic traversing a relatively less trustworthy network between two relatively more trusted systems or networks. Most commonly, the less trusted network is the public Internet. A VPN is virtual in that it carries information within a private network, but ...
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