This chapter describes how to configure, verify, maintain, and troubleshoot a Virtual Private Network
(VPN). It includes the following main sections:
• VPN Technology Overview
• Prerequisites for VPNs
• Configuring VPN
• Verifying VPN Sessions
• Monitoring and Maintaining VPNs
• Troubleshooting VPNs
• VPN Configuration Examples
For a complete description of the commands mentioned in this chapter, see the Cisco IOS Dial Services
Module 6: Configuring and troubleshooting routing and remote access. To support your organization’s distributed workforce, you must become familiar with technologies that enable remote users to connect to your organization’s network infrastructure. These technologies include virtual private networks (VPNs) and DirectAccess. It is important that you understand how to configure and secure your remote access clients by using network policies. This module explains how to configure and troubleshoot routing and remote access in Windows Server 2008.
What is a VPN?
Cisco Documentation on VPN
• A VPN is a Virtual Private Network
• Now, as more and more companies need access for remote users, mobile
users or remote offices, your current architecture can be augmented with a
• A Virtual Private Network is a network that’s created by encryption
(Tunneling) across another unsecured medium, like the Internet
• What is great about Cisco and VPN’s is that all Cisco devices can be
configured as a VPN enabled device solely by the IOS feature set itself. There
is a concentrator series, but...
PIX Firewall can function as an Easy VPN Server in relation to an Easy VPN Remote device, such as a
PIX 501 or PIX 506/506E, or in relation to Cisco VPN software clients. When used as an Easy VPN
Remote device, the PIX Firewall can push VPN configuration to the VPN client or Easy VPN Remote
device, which greatly simplifies configuration and administration. For information about configuring a
PIX 501 or PIX 506/506E as an Easy VPN Remote device, refer to Chapter 5, “Using PIX Firewall in
OpenVPN is an open source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol that utilizes SSL/TLS for key exchange. It is capable of traversing network address translators (NATs) and firewalls. It was written by James Yonan and is published under the GNU General Public License (GPL)
This module provides students with the knowledge and skills to configure
virtual private network (VPN) access.
After completing this module, students will be able to:
Explain the use of VPNs and Microsoft® Internet Security and Acceleration
(ISA) Server 2000.
Configure VPNs by using ISA Server.
Virtual Private Network (VPN) hay còn gọi là Mạng riêng ảo là một mạng riêng về logic,
được xây dựng dựa trên kiến trúc mạng công cộng tồn tại về vật lý. VPN cho phép hai
điểm đầu cuối của một kết nối trao đổi thông tin một cách bảo mật, đồng thời sử dụng
kiến trúc mạng đã có sẵn thay vì phải xây dựng một mạng riêng với các thiết bị truyền
dẫn thực như leased line.
Giao thức sử dụng trong connect VPN là PPTP point-to-point...
The information in this document is subject to change without notice. The statements, configurations, technical data, and recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full responsibility for their applications of any products specified in this document. The information in this document is proprietary to Nortel Networks Inc.
Organized for maximum efficiency: describes actual commands and options in the sequence they should be used
Helps network pros eliminate time-consuming documentation searches
Extensive updates: IPv6, MPLS, AutoQoS, SIP, MGCP, voice troubleshooting, VPNs, security, and more
"At-a-glance" illustrations offer fast answers and easy double-checking
Introduction to Check Point Mobile for Windows
Check Point Mobile for Windows is a remote access client for easy, secure connectivity to corporate resources over the internet, through a VPN tunnel.The Installation Process
Important - To install a Remote Access Client on any version of Windows, you need Administrator permissions. Consult with your system administrator.
To install a Remote Access Client:
1. Log in to Windows with a user name that has Administrator permissions.
2. Get the installation package from your system administrator, and double-click the installation package.
The ease or difﬁculty of packet snooping (also known as eavesdropping) on networks
depends largely on the technology implemented. Shared media networks are particularly
susceptible to eavesdropping because this type of network transmits packets everywhere
along the network as they travel from the origin to the ﬁnal destination. When concentrators
or hubs are used in a shared media environment (such as FDDI, 10BASE-T, or 100-Mbps
Ethernet), it can be fairly easy to insert a new node with packet-capturing capability and
then snoop the trafﬁc on the network.
Tham khảo bài thuyết trình 'module 8: configuring virtual private network access for remote clients and networks', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả
Security is a concern when using the public Internet to conduct business. Virtual Private Networks (VPNs) are used to ensure the security of data across the Internet. This chapter explains the concepts and processes related to VPNs, as well as the benefits of VPN implementations, and the underlying protocols required to configure VPNs.
This chapter explains how to configure site-to-site virtual private networks (VPN) using Cisco IOS routers. You will learn how to use both CLI commands and Cisco Configuration Professional to configure, validate, and monitor the VPN configuration. You will also learn site-to-site VPN troubleshooting techniques.
This chapter describes the use cases and operational requirements of SSL VPNs and offers a detailed presentation on the operations of SSL. The chapter explains configurations, deployment options, and design considerations. It describes the steps to configure both Cisco VPN clientless mode and Cisco full-tunnel mode on Cisco ASA using the Cisco AnyConnect client.