Chapter 3 discussed IPsec VPNs, and Chapter 4 discussed PPTP and L2TP VPNs. All three of these VPN implementations provide network layer protection; they can protect traffic from the network layer and higher. However, one of their downsides is that they require special software to be installed on the client device, and possible user training on how to use the software.

Some companies want a solution that is more simple to use and more easy to maintain than the three I just mentioned. Secure Socket Layer (SSL) began as a protocol to protect web (HTTP) traffic between an end-user device and a web server. Normally, it is used to provide protection for online purchases and identity information at e-commerce sites such as Cisco Press and Cisco. However, many network vendors are leveraging SSL's capabilities and using SSL to implement VPN solutions. One main advantage that SSL VPNs have over the other three is that SSL VPNs require no VPN software, by default, to be installed on the user's desktop; a currently installed web browser is used. Using a web browser allows a user to access a central site securely from both corporate and non-corporate PCs. The remainder of this chapter will focus on the use of SSL for VPN implementations.

Part I: VPNs

Overview of VPNs

VPN Technologies




Part II: Concentrators

Concentrator Product Information

Concentrator Remote Access Connections with IPsec

Concentrator Remote Access Connections with PPTP, L2TP, and WebVPN

Concentrator Site-to-Site Connections

Concentrator Management

Verifying and Troubleshooting Concentrator Connections

Part III: Clients

Cisco VPN Software Client

Windows Software Client

3002 Hardware Client

Part IV: IOS Routers

Router Product Information

Router ISAKMP/IKE Phase 1 Connectivity

Router Site-to-Site Connections

Router Remote Access Connections

Troubleshooting Router Connections

Part V: PIX Firewalls

PIX and ASA Product Information

PIX and ASA Site-to-Site Connections

PIX and ASA Remote Access Connections

Troubleshooting PIX and ASA Connections

Part VI: Case Study

Case Study


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The Complete Cisco VPN Configuration Guide
The Complete Cisco VPN Configuration Guide
ISBN: 1587052040
EAN: 2147483647
Year: 2006
Pages: 178
Authors: Richard Deal
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