From the course: IT Security Foundations: Network Security
Join today to access over 24,700 courses taught by industry experts.
Securing internet protocol
From the course: IT Security Foundations: Network Security
Securing internet protocol
- [Presenter] Internet protocol is a best-effort connectionless protocol, used to transfer data across networks by routing and addressing each packet. IP on its own is not secure. So how do we secure IP communications? Well, that is where Internet Protocol Security or IPsec comes into play. IPsec is a protocol suite for securing IP communications. IPsec can both encrypt and authenticate each IP packet of a session between hosts or networks within a private land or across the internet. We can add IPsec to IPv4 or IPv6 by using additional headers. If we take a look at our figure and security methods used in the TCP/IP stack, we see that IPsec provides security at the network layer. Unlike an SSL/TLS VPN, IPsec requires the use of proprietary software. In addition, the network administrator will need to set up and maintain the connection. Many feel because of the added steps when setting up an IPsec VPN, this provides improved security. IPsec is not a single protocol, but a framework…
Practice while you learn with exercise files
Download the files the instructor uses to teach the course. Follow along and learn by watching, listening and practicing.
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.