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[ScreenOS] VPN Overview

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Article ID: KB4162 KB Last Updated: 30 Nov 2021Version: 5.0
Summary:

This article provides an overview of VPN.

Solution:

A virtual private network (VPN) is a cost-effective and secure way for corporations to provide users dial-up access to the corporate network and for remote networks to communicate with each other across the Internet. Secure private connections over the Internet are more cost-effective than dedicated private lines. NetScreen devices provide full VPN functions for secure LAN-to-LAN and Dial Up-to-LAN VPN applications.

LAN-to-LAN VPN example:

Image of LAN-to-LAN VPN example

Site A

  • Untrust IP address of device 172.16.10.1

  • Trust Network 10.1.1.0/24

Site B

  • Untrust IP address of device 172.16.20.1

  • Trust Network 192.168.1.0/24

For configuration examples, refer to the following articles:

 

Dial Up-to-LAN VPN example:

Image of Dial Up-to-LAN VPN example

For configuration examples, refer to the following articles:

Modification History:

2021-11-30: Removed outdated links

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