Virtual private networks provide two important network security functions to IT administrators. First, they allow the secure interconnection of remote networks, such as connecting branch offices to a corporate headquarters or each other. Second, they provide mobile workers with a mechanism to securely connect from remote locations back to the organization’s network. In this video, learn the purpose of virtual private networks, or VPNs, the IPsec protocol and the role of VPN concentrators.
- [Instructor] Virtual private networks, or VPNs,…provide two important network security functions to…IT administrators.…First, they allow the secure interconnection of…remote networks such as connecting branch offices…to a corporate headquarters or to each other.…Second, they provide mobile workers with a mechanism…to securely connect from a remote locations…back to the organization's network.…VPNs work by using encryption to create a virtual tunnel…between two systems over the internet.…
Everything that enters one end of the tunnel…is encrypted, and then it is decrypted when it exits…the other end of the tunnel.…From the user's perspective, the network appears…to function normally, but if an attacker gains access…to traffic between the two secure end points,…all they see is encrypted information that they can't read.…VPNs require an endpoint on the remote network…that accepts VPN connections.…Many different devices may serve as VPN endpoints,…such as a firewall, router, server,…or a dedicated VPN concentrator.…
Note: This course is part of a series releasing throughout 2018. A completed learning path of the series will be available once all the courses are released.
- How IP addresses are assigned and managed
- Multilayer protocols
- VPNs and VPN concentrators
- Designing secure networks
- Firewall management techniques
- Maintaining network availability
- Software defined networking (SDN)
- Port isolation
- Network attacks
- How Wi-Fi networks function
- WPA, WPS, and propagation attacks
- Host-based network security control
Skill Level Advanced
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Appropriate for all
1. TCP/IP Networking
2. Network Security Devices
3. Designing Secure Networks
4. Specialized Networking
5. Secure Network Management
6. Virtualized Networks
Port isolation1m 47s
7. Network Attacks
8. Transport Encryption
9. Wireless Networking
10. Host Security
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