l2tp

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L2TP/IPSEC with Windows 2000 Client and Server

The topology below illustrates Windows 2000 as an IPSec client for L2TP Load Balancing. Since Windows 2000 only supports L2TP in Transport Mode, it cannot be used as an IPSec client alone. It can only be used to access another L2TP server such as a Windows 2000 server, or...

Tags: L2TP, Server, Microsoft Windows, Microsoft Windows 2000, VPNs, Network Security, Networking, Operating Systems, Software

White papers

Additional Resources

Performance Evaluation for Remote Access VPNs on Windows Server 2003

A Virtual Private Network VPN can be defined as a way to provide secure communication between members of a group through use of the public telecommunication infrastructure, maintaining privacy through the use of a tunneling protocol and security procedures. This work examines and empirically evaluates the remote access VPNs, namely...

Tags: Performance, Microsoft Windows Server, Performance Evaluation, Microsoft Windows, PPTP, IEEE, Microsoft Windows Server 2003, VPNs, Network Security, Remote Access, Telecommunications, Networking, IPSec, Security

White papers 2008-08-12

Linksys WRT610N Simultaneous Dual-N Band Wireless Router

Editor's note: Although our First Look video states that the WRT610N costs only $149, the street price may prove higher.The Linksys WRT610N Simultaneous Dual-N Band Wireless Router is the first true dual-band wireless router we've reviewed, and one of only a few on the market. In our tests, it easily...

Tags: Home networking, Routers & switches, Network technology, Network-attached storage (NAS), NETWORKING, wireless router, Storage Link, WRT610N, Linksys Inc., router, Linksys WRT310N, storage

Product reviews 2008-07-17

D-Link DGL-4500 GamerLounge Xtreme N Gaming Router

The D-Link DGL-4500 GamerLounge Xtreme N Gaming Router offers decent performance and a long list of features for home wireless networking and hardcore gamers. However, it lacks support for simultaneous 2.4GHz and 5GHz bands along with random resets during heavy loads. You may want to wait for a successor to...

Tags: Home networking, Routers & switches, Network technology, NETWORKING, Games, d-link DGL-4500, router, D-Link Systems, network

Product reviews 2008-02-26

Windows Server 2008 and Vista SP1 RTM today

Microsoft has reached a major milestone today for its Windows Server and Client products. Windows Server 2008 and Windows Vista Service pack 1 have been released to manufacturing today which means they will soon be available to IT customers and consumers. Windows Server 2008 replaces the venerable Windows...

Tags: Microsoft Windows Server, Microsoft Windows Vista, Microsoft Corp., Microsoft Windows Vista SP1, SSTP, Microsoft Windows, Microsoft Windows Server 2008, Microsoft Windows Vista (Longhorn), Operating Systems, Servers, Software, Hardware, George Ou

Blog posts 2008-02-04

Step-by-Step Guide: Deploying SSTP Remote Access

Secure Socket Tunneling Protocol SSTP is a new form of VPN tunnel with features that allow traffic to pass through firewalls that block PPTP and L2TP/IPsec traffic. SSTP provides a mechanism to encapsulate PPP traffic over the SSL channel of the HTTPS protocol. The use of PPP allows support for...

Tags: PPP, Traffic, Secure Socket Tunneling Protocol, Microsoft Windows, VPNs, Networking, Network Security, Microsoft Windows Server 2008, Security, Telecommunications, Operating Systems, Software

White papers 2007-12-01

Fine Packet Builder (jar)

With "Fine Packet Builder", user can create, edit, copy, encode, and decode packet constructed by any protocol stack; use packet database to save and manage at external media, communicate on L2. And popular script APIJython of each feature, support screen and wizard of each feature, environment for edition, management, implementation...

Tags: API, Feature, Fine Quality Technology, Networking, Tcp/Ip

Software downloads 2007-08-27

How to protect your online privacy

If you want to avoid being compromised when using typical Wi-Fi hotspots that have no security, you can use the following table as a reference of protocols you should and shouldn't use.  The insecure protocols should be banned and never used again; the protocols on the right are the secure...

Tags: Google Inc., Online Privacy, TCP, SSL, George Ou

Blog posts 2007-08-06

Palm Foley with Linux threatens the Laptop

At the Digital Experience in New York this week, Palm demonstrated the simplicity of their Foley 2 pound sub-notebook device that can potentially replace a full blown laptop for mobile workers.  I was initially very skeptical of such a device until I saw it turn on and off instantly with...

Tags: News, Networking, Mobile/Wireless, Hardware

Blog posts 2007-07-02

Rumor: iPhone to feature VPN and QuickLook

A rumor over at 9 to 5 Mac says that iPhone will ship with two previously-unannounced features when it ships next week: a VPN client: The iPhones will have the standard OSX VPN client when they ship next week.  This will allow connecting to Macintosh and Windows VPN Servers on...

Tags: Software, Rumor, iPhone

Blog posts 2007-06-22

Why VPN can't replace Wi-Fi security

Every time the subject of wireless LAN security comes up, people ask me about VPN as a solution for securing Wi-Fi (Wi-Fi is the common marketing name for 802.11 wireless LANs). Ive always told people that VPN security shouldnt be a substitute for good Wi-Fi security and I even...

Tags: Wireless LANs, Wireless security, VPNs, Network security, WIRELESS, Wi-Fi, VPN, Wi-Fi security, WPA, WEP

Blog posts 2007-05-12

SHA-1 Perspective, minus two

SHA-1 Perspective, minus two"reasonable" perhaps but not agreed with by any security specialists"pretty much puts a bullet in SHA-1" is how Bruce Schneider Counterpane Internet Security described it here:http://www.computerweekly.com/Articles/2005/03/08/208736/companies-forced-to-reconsider-security-as-sha-1-code-is.htmby comparison, George Ou:"But to put this event in the proper perspective, the finding of a hash collision does not mean the...

Tags: Authentication/Encryption, SHA-1, mathematician, NSA

Discussion threads 2007-01-24

Cryptography interview with the NSA

Cryptography interview with the NSAwhats funny is...I'm currently reading Dan Brown's "Digital Fortress" all about the NSA and TRANSLTR (their 2 million core public key crunching monster) and crypto labs.. Its a good read :)Good ReadNice to know where the flaws are in the system. And Snow is right....

Tags: SECURITY, Network security, Rainbow Tables, password, NSA, cryptography

Discussion threads 2007-01-04

TechNet Webcast: Protecting Branch Offices With Internet Security and Acceleration (ISA) Server 2006 (Level 200)

This webcast describes the tasks required for deploying a Microsoft Internet Security and Acceleration ISA Server 2006 solution in a branch office. The presenter explains how to configure both the headquarters and branch office sites, and how to deploy a site-to-site Virtual Private Network VPN connection using the Layer two...

Tags: Internet, Webcast, Branch Office, Microsoft Office, Server, Microsoft ISA Server, Microsoft Corp., Internet Security, Microsoft TechNet, IPSec, VPNs, Network Security, Networking, Security

Webcasts 2006-08-16

Strategic partnership destined for failure: directionless Microsoft, overmatched Nortel

Strategic partnership destined for failure: directionless Microsoft, overmatched NortelAhem...the verdict is coming soon...Microsoft is a company in search of a future. It's been looking for other revenue streams than the OS and prod suite for a few years now (e.g. xbox, win embedded, etc.). Bottom line is that...

Tags: Routers & switches, Cisco Systems Inc., Microsoft Corp., Nortel Networks Corp.

Discussion threads 2006-07-19

NeoAccel SSL VPN-Plus: The Future of Virtual Private Networks

VPN Virtual Private Network technology was created to enable secure communications over public networks. Current VPN technology permits using the public Internet or any IP network as if it were a private leased line between end-points, providing secure access to all private resources. Earlier generations of VPN technology were "Narrow"...

Tags: Network, NeoAccel, VPNs, Network Security, IPSec, Networking, Telecommunications, Security

White papers 2006-02-08

Configure VPN 3000 concentrators to accept PPTP, L2TP/IPsec, and WebVPN remote access sessions

This sample chapter, taken from The Complete Cisco VPN Configuration Guide, focuses on the configuration of the concentrator to support certain types of remote access VPN implementations. Learn how to configure remote access sessions: PPTP, L2TP/IPsec, and WebVPN.This sample chapter, taken from The Complete Cisco VPN Configuration...

Tags: Cisco VPN 3000 Concentrator, PPTP, Cisco Systems Inc., Remote Access Session, Remote Access, VPNs, Telecommunications, Networking

Book chapters 2006-02-06

10 things you should know about troubleshooting VPN connections

When you run into VPN problems, it helps to have a list of solutions to fall back on. Here are some of the most common issues encountered with VPN connections and advice on what to do about them. Virtual private networking provides a secure and convenient way...

Tags: TechRepublic Inc., VPNs, Network Security, Telecommunications, Networking, Security

Download resources 2005-08-31

Why the computing world chose PKI

In Phil Zimmermann's response to "Does Phil Zimmermann need a clue on VoIP", Zimmermann offered a blistering attack on PKI based solutions and offered his own PGP solution as the superior alternative. There is just one little problem: the computing world chose PKI for the most part while PGP...

Tags: S/MIME, PGP Corp.

Blog posts 2005-08-09

PPTP VPN authentication protocol proven very susceptible to attack

PPTP VPN authentication protocol proven very susceptible to attackThis is a frightening blog entryI hope that the right people read it.Stephenlong time has gone but have people really get thisalthough such a long time has passed since the vulnerabilities of pptp in combination with ms-chapv2 have been revealed, there...

Tags: VPNs, Network security, SECURITY, TELECOMMUNICATIONS, authentication, vpn server, PPTP, VPN, VPN client, ISAKMP, attacker

Discussion threads 2005-01-11