An Introduction to IP Security (IPSec) Encryption
White Papers The purpose of this document is to introduce IPSec to users in a rapid, but concise format. You will see basic configurations of Internet Key Exchange (IKE) with pre-shared keys, IKE with a Certification Authority, and IPSec.
[January 9, 2004, 23:00]
IPsec/VPN Security Policy Engineering: Automatic Generation and Conflict Detection
White Papers IPsec is a useful IP layer security protocol which can provide authentication and encryption for end-to-end traffic flow, but configuring IPsec VPN tunnels is notoriously complicated because it has so many options (key exchange, ciphers...
[July 10, 2008, 1:01]
IPsec Direct Encapsulation VPN Design Guide
White Papers This design guide evaluates Cisco VPN product performance in scalable and resilient site-to-site VPN topologies, using Cisco VPN routers running Cisco IOS Software, with IPsec as the tunneling method.
[November 5, 2008, 0:01]
IPSec Virtual Private Networks: Conformance and Performance Testing
White Papers With IPSec VPN technology, organizations can use the public Internet as the backbone for their communications network infrastructure, achieving global reach and significant cost savings, while maintaining the security of internal communications.
[April 2, 2004, 0:04]
IPsec VPN WAN Design Overview
White Papers This design overview defines, at a high level, the available design choices for building an IPsec VPN WAN, and describes the factors that influence the choice. This design guide defines the comprehensive functional components that are required to...
[November 5, 2008, 0:01]
Step-by-Step Guide to Internet Protocol Security (IPSec)
White Papers This guide is intended to cover only local computer IPSec policy that uses IPSec transport (not tunneling) to secure traffic between a source computer and a destination computer. It does not cover using Group Policy in the Active Directory to...
[March 25, 2008, 3:11]
IPSec/VPN Security Policy Correctness and Assurance
White Papers With IPSec/VPN policies being widely deployed, how to correctly specify and configure them is critical in enforcing security requirements. Under current practice, IPSec/VPN policies are usually specified manually by system administrators and thus...
[July 10, 2008, 1:01]
IPsec - A Secure Deployment Option
White Papers IP Security (IPsec) protects IP packets and defines the means with which a packet will be encrypted. IPsec is a valuable option for protecting data in transit. It is an Internet Engineering Task Force (IETF) standard, and many operating systems...
[June 23, 2004, 20:00]
Enterprise Guide for Selecting an IP VPN Architecture - Comparing MPLS, IPsec, and SSL
White Papers Companies selecting IP VPN architecture - MPLS, IPSec, and SSL - need to consider their business needs because there is no single best choice. IPSec and SSL VPNs, in contrast, are typically managed by the enterprise, and originate and terminate at...
[March 2, 2009, 19:21]
Comparing MPLS-Based VPNs, IPSec-Based VPNs, and a Combined Approach From Cisco Systems
White Papers This white paper compares MPLS- and IPSec-based L3VPN architectures. Next it presents the relative strengths of MPLS- and IPSec-based VPNs and explains how service providers can use both architectures for optimum advantage.
[August 25, 2004, 10:33]
IPSec and SSL VPN Deployment Considerations
White Papers Two solutions have emerged for remote access over the Internet - IPSec VPN and SSL VPN. Choosing which one to deploy will be defined by the unique requirements of the organization, and in many both may be deployed as network-level access over SSL...
[March 16, 2009, 3:19]
IPSec vs. SSL VPNs for Secure Remote Access
White Papers For these remote access needs, clientless SSL VPNs are more secure, less expensive, and easier to manage than IPSec. Learn more in this free white paper: "IPSec vs. Your users now demand access to more applications from more locations and devices...
[February 8, 2007, 12:58]
IPsec Features in Cisco IOS Software Releases 12.3T, 12.3, 12.2T
White Papers This paper briefly describes IPsec features in Cisco IOS Software Releases 12.3T, 12.3, 12.2T. Cisco IOS Software provides many IPsec features such as Real-time Resolution for IPsec Tunnel Peer, Easy VPN Server, which provides RADIUS Support for...
[April 28, 2004, 22:57]
TechNet Webcast: Network Isolation Using Group Policy and IPsec (Part 1 of 3) (Level 300)
White Papers Data Isolation: How can it make the Information Technology (IT) infrastructure safer, and how to use Group Policy and Internet Protocol security (IPsec) to implement it? This webcast shows how to implement data isolation in the organization using...
[April 5, 2006, 0:00]
TechNet Webcast: Network Isolation Using Group Policy and IPsec (Part 3 of 3) (Level 300)
White Papers This webcast shows how to use IPsec to create network isolation zones. Topics include the advantages and limitations of network isolation, where network isolation fits into a defense-in-depth scheme, and how to use Group Policy and Microsoft Active...
[April 5, 2006, 0:00]
TechNet Webcast: Network Isolation Using Group Policy and IPsec (Part 2 of 3) (Level 200)
White Papers Building on the overview of Internet Protocol security (IPsec) provided in Part one of this three-part series, this webcast shows how to use IPsec to create network isolation zones. Topics include the advantages and limitations of network isolation...
[July 7, 2006, 0:00]
Experiences With Host-to-Host IPsec
White Papers This paper recounts some lessons that learned from the deployment of host-to-host IPsec in a large corporate network. Several security issues arise from mismatches between the different identifier spaces used by applications, by the IPsec security...
[May 4, 2006, 10:17]
How to Configure IPSec Tunneling in Windows 2000
White Papers You can use IP Security (IPSec) in tunnel mode to encapsulate Internet Protocol (IP) packets and optionally encrypt them. The primary reason for using IPSec tunnel mode (sometimes referred to as "pure IPSec tunnel") in Windows 2000 is for...
[January 6, 2004, 21:50]
Group Policy-From Basic to Advanced (Part 10 of 14)-Security Templates and IPSEC-Level 200
White Papers The session also discusses about IPSEC, showing how it should be deployed and the templates and settings that can be configured. This session looks at hardening servers and workstation using the hardening templates.
[January 7, 2005, 23:00]
Secure virtual private networks (VPNs) via IPSec, Cisco AVVID, and Cisco SAFE security blueprint
White Papers This sample chapter, taken from Cisco Press' CCSP Self-Study: Cisco Secure Virtual Private Networks (CSVPN), 2nd Edition, provides a detailed technical overview of Virtual Private Network (VPN) technologies and outlines multiple ways to secure...
[May 19, 2006, 1:00]



