VPN. Date: 4/15/2004 By: Heena Patel
|
|
- Barbra Woods
- 7 years ago
- Views:
Transcription
1 VPN Date: 4/15/2004 By: Heena Patel
2 What is VPN? A VPN (virtual private network) is a private data network that uses public telecommunicating infrastructure (Internet), maintaining privacy using encryption and, tunneling protocol and security procedures to connect users securely virtual implies that there is no physical connection between the two networks; Instead connections routed through the Internet private implies that the transmitted data is kept confidential (encryption and secured tunneling) network implies communication medium using private, public, wired, wireless, Internet or any resource available
3 Why VPN Low-cost Secured and reliable communication Dynamic access to private networks Such access would otherwise only be possible Using expensive leased dedicated lines provided by telephone companies point to point dedicated digital circuit Dialing into the local area network (LAN)
4 Types of VPN Remote Access Network Remote access to a corporate Intranet or extranet over a shared infrastructure with the same policies as a private network from any location. Site-to-Site Connection Network Intranet based: An alternative WAN infrastructure that used to connect branch offices, home offices, or business partners' sites to all or portions of a company's network. VPNs do not inherently change private WAN requirements, such as support for multiple protocols, high reliability, and extensive scalability, but instead meet these requirements more cost-effectively and with greater flexibility. Extranet based: Link communities of interest to a corporate Intranet over a shared infrastructure. Businesses enjoy the same policies as a private network, including security, QoS, manageability, and reliability.
5 Remote Access Network Secured Tunnel A remote access VPN is for home or traveling users who need to access their corporate network from a remote location. They dial their ISP and connect over the Internet to company s internal WAN. This is made possible by installing client software program on the remote user s laptop or PC that deals with the encryption and decryption of the VPN traffic between itself and the VPN gateway on the central LAN.
6 Site-to-Site Connection Network Secured Tunnel A Fixed VPN is normally used between two or more sites allowing a central LAN to be accessed by remote LANs over the Internet of private communication lines using VPN Gateways. VPN Gateways (Normally a VPN-enabled router) are placed at each remote site and at the central site to allow all encryption and decryption and tunneling to be carried out transparently.
7 Design Goals and Features of VPN Security Tunneling support between sites with at least 128 bit encryptions of the data. Confidentiality Protects Privacy Private key cryptography Public key cryptography Integrity - Ensures that the information being transmitted over the Internet is not being altered One-way hash functions Message Authentication codes (encryption of hash) Digital Signatures (Hash functions + Private Key)
8 Design Goals and Features of VPN Authentication - Ensures the identity of all communicating parties Password Authentication Digital Certificates - is a file that binds an identity to the associated public key. This binding is validated by a trusted third party, the certification authority (CA) Scalability - Extra users and bandwidth can be added easily to adapt new requirements Services QoS (Quality of Services) Reports on user activity, management of user policies and monitoring of the VPN
9 VPN Tunneling Voluntary Tunneling: The VPN Client manages connection setup. The client first makes a connection to the carrier network provider (ISP) and then, the VPN Client application creates the tunnel to a VPN server over this live connection Compulsory Tunneling: The carrier network provider manages VPN connection setup. When the client first makes an ordinary connection to the carrier, the carrier immediately brokers a VPN connection between the client and a VPN server. From the client point of view, VPN connections are setup in just one step compared to the two-step procedure for voluntary tunnels Compulsory VPN tunneling authenticates clients and associates them with specific VPN server using logic built into the broker device. It also hides the details of VPN server connectivity from VPN client.
10 VPN Protocols Layer 2 - Data Link Layer: PPTP Point-to-Point Tunneling Protocol L2F Layer 2 Forwarding Protocol L2TP Layer 2 Tunneling Protocol CHAP Challenged Handshake Authentication Protocol PAP Password Authentication Protocol MS-CHAP Microsoft Challenged Handshake Authentication Protocol Layer 3 Network Layer (IP): IPSec Internet Protocol Security Transport Layer(TCP/UDP): SOCKS V5 Sock-et-S version 5 SSL Secure Socket Layer
11 IPSec Internet Protocol Security RFCs ,2402 and 2406 Network Layer Protocol Layer 3 Solution A set of authentication and encryption the only protocol with Standard of IFTF (Internet Engineering task Force) Data confidentiality, integrity, authentication and key management, in addition to tunneling Typically works on the edges of a security domain. Supports Ipv4 and IPv6 Encapsulates each packet by wrapping another packet around it and then encrypts the entire packet. This encrypted stream of traffic forms a secure tunnel across an otherwise unsecured network. Majority VPN vendors are implementing IPSec in their solutions
12 PPP Point-to-Point Protocol Designed to send data across the dial-up or dedicated point-topoint connections. PPP encapsulates IP, IPX and NetBEUI packets with PPP frames. There are four distinct phases must complete successfully before the PPP connection is ready to transfer user data. PPP Link establishment User Authentication Password Authentication Protocol (PAP) Challenged Handshake Authentication Protocol (CHAP) encrypted Authentication Mechanism PPP Callback Control Invoking Network Layer Protocol(s)
13 PPTP Point-to-Point Tunneling Protocol RFC PPTP is a tunneling protocol provided by Microsoft, which provides remote users, encrypted, multi protocol access to a corporate network over the Internet. It encapsulates PPP frames in IP data grams (IP, IPX and NetBEUI are encapsulated) PPTP is built in to NT 4.0 and the client is free for the older versions such as Windows 95. Microsoft s implementation of PPTP has been found to have several problems that make it vulnerable to attacks, and it also lakes the scalability in that it only supports 255 concurrent connections per server. Require an IP Network between PPTP Client and PPTP Serve(either LAN or dial-up) PPTP can support only one tunnel at a time for each user. Uses TCP Port 1723
14 L2F Layer 2 Forwarding RFC Developed by Cisco Systems Inc. L2F was designed as a protocol for tunneling traffic from users to their corporate sites. One major difference between PPTP and L2F tunneling is not dependent on IP, because it works directly with other media, such as frame relay and ATM. Like PPTP, L2F uses PPP for authentication of the remote user but it also includes support for TACACS (terminal access controller access control system) and RADIUS (Remote Authentication Dial-in User Service Lightweight UDP based protocol) for authentication. It allows tunnels to support more than one connection. Cisco offers L2F and L2TP capabilities in its router product line along with IPSec.
15 L2TP Layer 2 Tunneling Protocol RFC PPTP s successor L2TP (a hybrid of Microsoft s PPTP and Cisco Systems Layer 2 Forwarding - L2F protocol) can support multiple, simultaneous tunnels for each user. It encapsulates PPP frames in IP data grams Extends from the remote host to all the way back to corporate gateway. In effect, the remote host appears to be on the same subnet as the corporate gateway It Uses UDP and supports any routed protocol, including IP, IPX and AppleTalk, including frame relay, ATM, X.25 Because of L2TP s use of PPTP, it is included as part of the remote access features of most Windows Products It does not provide cryptographically key security features It can support IPSec for data encryption and integrity Compulsory tunneling Model UDP Port 1701
16 Socks5 (Sock-et-s Version 5) Circuit level proxy protocol that was originally designed to facilitate authenticated firewall traversal. Works at the TCP socket level. It requires a SOCK5 server and appropriate software in order to work. It checks each request from client for service against the security database, and if request is granted, then server establishes an authenticated session with the client acting as a proxy. Provides a secure, proxy architecture with extremely granular access control, making it an excellent choice for extranet configurations. Allows developers to build system plug-ins such a content filtering (denying access to Java Applets or Active X controls) and extensive logging and auditing of users. When SOCKS is used in conjunction with other VPN technologies, its possible to have more complete solution than any individual could provide. For example: SOCKS could be used to enforce user-level and application level access control and IPSec could be used to secure the underlying network transport.
17 SSH Secured Socket Secure Socket Layer (SSL) is an upper-layer mechanism commonly used by Web browser Clients and servers to provide peer authentication and encryption of application data. IPSec provides only network level security, In addition to that, SSH can provide application level security Use existing web browser technology to create a secure VPN tunnel between a client and a server. SSL VPNs are limited to applications that can run in a browser and therefore not as popular as IPSec
18 VPN Advantages Authenticate all packets of data received, ensuring that they are from a trusted source and encryption ensures the data remains confidential Most VPNs connect over the Internet so call costs are minimal, even if the remote user is a great distance from the central LAN. A reduction in the overall telecommunication infrastructure as the ISP Provides the bulk of the network. Reduced cost of management, maintenance of equipment and technical support.simplifies network topology by eliminating modem pools and a private network infrastructure. VPN functionality is already present in some IT equipments. VPNs are easily extended by increasing the available bandwidth and by licensing extra client software.
19 VPN Disadvantages If the ISP or Internet connection is down, so it s VPN. The central site must have a permanent Internet connection so that the remote clients and other sites can connect at anytime. May provide less bandwidth than a dedicated line solution. Different VPN manufacturers may comply with different standards. All traffic over the VPN is encrypted, regardless of need. This can be potentially cause bottleneck since encrypting and decrypting causes network overhead. Provides no internal protection on the corporate network. The VPN endpoint is typically at the edge of the network. Once employees are on the internal corporate network, data is no longer encrypted. (SSH provides point-to-point secure communication.) Most VPN technologies today do not address performance and availability issues as important as they are. Why? Because the majority of VPN solutions exist on client machines and gateway servers at the extreme ends of the communication path. They simply cannot consistently affect the performance of the network components in the middle. Unfortunately, this middle is exactly the Internet.
20 Need VPN Solution?? There is no one size fits all solution when choosing a VPN. Several basic questions should be asked before deciding on a solution: Do you need to connect sites together or individual remote users to a central LAN? Individual users are best connected with software installed on PC/laptop Sites should be connected using hardware devices because of their faster throughput with one device located at each site. What type of network equipment and operating systems do you have? Existing equipment may have VPN functionality built in and may be worth attempting to configure this rather than buying a new solution. What are the main features of a software/hardware solution? Software solution is cheaper and may be included in the equipment in use and network doesn t change. Hardware solutions are more expensive but remain more reliable and secure. How many users require a VPN access and which application access? How secure your data need to be during transmission? What about a managed VPN Solution? Built and operated by trusted third party like ISP or Secure Application Service provider (SASP) Expensive but takes away the burden from IT Staff.
Technical papers Virtual private networks
Technical papers Virtual private networks This document has now been archived Virtual private networks Contents Introduction What is a VPN? What does the term virtual private network really mean? What
More informationCisco Which VPN Solution is Right for You?
Table of Contents Which VPN Solution is Right for You?...1 Introduction...1 Before You Begin...1 Conventions...1 Prerequisites...1 Components Used...1 NAT...2 Generic Routing Encapsulation Tunneling...2
More information7.1. Remote Access Connection
7.1. Remote Access Connection When a client uses a dial up connection, it connects to the remote access server across the telephone system. Windows client and server operating systems use the Point to
More informationOther VPNs TLS/SSL, PPTP, L2TP. Advanced Computer Networks SS2005 Jürgen Häuselhofer
Other VPNs TLS/SSL, PPTP, L2TP Advanced Computer Networks SS2005 Jürgen Häuselhofer Overview Introduction to VPNs Why using VPNs What are VPNs VPN technologies... TLS/SSL Layer 2 VPNs (PPTP, L2TP, L2TP/IPSec)
More informationFirewalls and Virtual Private Networks
CHAPTER 9 Firewalls and Virtual Private Networks Introduction In Chapter 8, we discussed the issue of security in remote access networks. In this chapter we will consider how security is applied in remote
More informationVPN SECURITY. February 2008. The Government of the Hong Kong Special Administrative Region
VPN SECURITY February 2008 The Government of the Hong Kong Special Administrative Region The contents of this document remain the property of, and may not be reproduced in whole or in part without the
More informationI. What is VPN? II. Types of VPN connection. There are two types of VPN connection:
Table of Content I. What is VPN?... 2 II. Types of VPN connection... 2 III. Types of VPN Protocol... 3 IV. Remote Access VPN configuration... 4 a. PPTP protocol configuration... 4 Network Topology... 4
More informationDATA SECURITY 1/12. Copyright Nokia Corporation 2002. All rights reserved. Ver. 1.0
DATA SECURITY 1/12 Copyright Nokia Corporation 2002. All rights reserved. Ver. 1.0 Contents 1. INTRODUCTION... 3 2. REMOTE ACCESS ARCHITECTURES... 3 2.1 DIAL-UP MODEM ACCESS... 3 2.2 SECURE INTERNET ACCESS
More informationIntroduction to Security and PIX Firewall
Introduction to Security and PIX Firewall Agenda Dag 28 Föreläsning LAB PIX Firewall VPN A Virtual Private Network (VPN) is a service offering secure, reliable connectivity over a shared, public network
More informationVirtual Private Networks
Virtual Private Networks The Ohio State University Columbus, OH 43210 Jain@cse.ohio-State.Edu http://www.cse.ohio-state.edu/~jain/ 1 Overview Types of VPNs When and why VPN? VPN Design Issues Security
More informationIP Security. IPSec, PPTP, OpenVPN. Pawel Cieplinski, AkademiaWIFI.pl. MUM Wroclaw
IP Security IPSec, PPTP, OpenVPN Pawel Cieplinski, AkademiaWIFI.pl MUM Wroclaw Introduction www.akademiawifi.pl WCNG - Wireless Network Consulting Group We are group of experienced professionals. Our company
More informationAN OVERVIEW OF REMOTE ACCESS VPNS: ARCHITECTURE AND EFFICIENT INSTALLATION
AN OVERVIEW OF REMOTE ACCESS VPNS: ARCHITECTURE AND EFFICIENT INSTALLATION DR. P. RAJAMOHAN SENIOR LECTURER, SCHOOL OF INFORMATION TECHNOLOGY, SEGi UNIVERSITY, TAMAN SAINS SELANGOR, KOTA DAMANSARA, PJU
More informationHow Virtual Private Networks Work
How Virtual Private Networks Work Document ID: 14106 Contents Introduction Prerequisites Requirements Components Used Conventions Background Information What Makes a VPN? Analogy: Each LAN Is an IsLANd
More informationSecure Network Design: Designing a DMZ & VPN
Secure Network Design: Designing a DMZ & VPN DMZ : VPN : pet.ece.iisc.ernet.in/chetan/.../vpn- PPTfinal.PPT 1 IT352 Network Security Najwa AlGhamdi Introduction DMZ stands for DeMilitarized Zone. A network
More informationIBM enetwork VPN Solutions
IBM enetwork VPN Solutions the Reach of Your Network Extend Agenda Description and Value of a VPN VPN Technology IBM's VPN Solutions and Future Enhancements Summary What is a VPN? Remote Access Business
More informationObjectives. Remote Connection Options. Teleworking. Connecting Teleworkers to the Corporate WAN. Providing Teleworker Services
ITE I Chapter 6 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Objectives Providing Teleworker Services Describe the enterprise requirements for providing teleworker services Explain how
More informationA Web Broker Architecture for Remote Access A simple and cost-effective way to remotely maintain and service industrial machinery worldwide
p 1/6 White Paper A Web Broker Architecture for Remote Access A simple and cost-effective way to remotely maintain and service industrial machinery worldwide Francis Vander Ghinst Head of Sales & Marketing
More informationVPN Technologies: Definitions and Requirements
VPN Technologies: Definitions and Requirements 1. Introduction VPN Consortium, January 2003 This white paper describes the major technologies for virtual private networks (VPNs) used today on the Internet.
More informationCornerstones of Security
Internet Security Cornerstones of Security Authenticity the sender (either client or server) of a message is who he, she or it claims to be Privacy the contents of a message are secret and only known to
More informationVirtual Private Networks Solutions for Secure Remote Access. White Paper
Virtual Private Networks Solutions for Secure Remote Access White Paper Copyright Decipher Information Systems, 2005. All rights reserved. The information in this publication is furnished for information
More informationAppendix A: Configuring Firewalls for a VPN Server Running Windows Server 2003
http://technet.microsoft.com/en-us/library/cc757501(ws.10).aspx Appendix A: Configuring Firewalls for a VPN Server Running Windows Server 2003 Updated: October 7, 2005 Applies To: Windows Server 2003 with
More informationConnecting Remote Users to Your Network with Windows Server 2003
Connecting Remote Users to Your Network with Windows Server 2003 Microsoft Corporation Published: March 2003 Abstract Business professionals today require access to information on their network from anywhere
More informationVirtual Private Networks
Virtual Private Networks Rene Bahena Felipe Flores COEN 150 Project Report Chapter 1: What is a VPN? VPN stands for Virtual Private Network and is a way of making a secure remote connection to a private
More informationRemote Access VPNs Performance Comparison between Windows Server 2003 and Fedora Core 6
Remote Access VPNs Performance Comparison between Windows Server 2003 and Fedora Core 6 Ahmed A. Joha, Fathi Ben Shatwan, Majdi Ashibani The Higher Institute of Industry Misurata, Libya goha_99@yahoo.com
More informationFirewalls. Outlines: By: Arash Habibi Lashkari July 2010. Network Security 06
Firewalls Outlines: What is a firewall Why an organization ation needs a firewall Types of firewalls and technologies Deploying a firewall What is a VPN By: Arash Habibi Lashkari July 2010 1 Introduction
More informationIntranet Security Solution
Intranet Security Solution 1. Introduction With the increase in information and economic exchange, there are more and more enterprises need to communicate with their partners, suppliers, customers or their
More informationHow Virtual Private Networks Work
How Virtual Private Networks Work by Jeff Tyson This article has been reprinted from http://computer.howstuffworks.com/ Please note that the web site includes two animated diagrams which explain in greater
More informationVirtual Private Networks
Virtual Private Networks ECE 4886 Internetwork Security Dr. Henry Owen Definition Virtual Private Network VPN! Virtual separation in protocol provides a virtual network using no new hardware! Private communication
More informationElectronic Service Agent TM. Network and Transmission Security And Information Privacy
Electronic Service Agent TM and Transmission Security And Information Privacy Electronic Services January 2006 Introduction IBM Electronic Service Agent TM is a software application responsible for collecting
More informationSSL VPN Technology White Paper
SSL VPN Technology White Paper Keywords: SSL VPN, HTTPS, Web access, TCP access, IP access Abstract: SSL VPN is an emerging VPN technology based on HTTPS. This document describes its implementation and
More informationCreating a VPN Using Windows 2003 Server and XP Professional
Creating a VPN Using Windows 2003 Server and XP Professional Recommended Instructor Preparation for Learning Activity Instructor Notes: There are two main types of VPNs: User-to-Network This type of VPN
More information5.0 Network Architecture. 5.1 Internet vs. Intranet 5.2 NAT 5.3 Mobile Network
5.0 Network Architecture 5.1 Internet vs. Intranet 5.2 NAT 5.3 Mobile Network 1 5.1The Internet Worldwide connectivity ISPs connect private and business users Private: mostly dial-up connections Business:
More informationVirtual Private Networks: IPSec vs. SSL
Virtual Private Networks: IPSec vs. SSL IPSec SSL Michael Daye Jr. Instructor: Dr. Lunsford ICTN 4040-001 April 16 th 2007 Virtual Private Networks: IPSec vs. SSL In today s society organizations and companies
More informationApplication Note: Onsight Device VPN Configuration V1.1
Application Note: Onsight Device VPN Configuration V1.1 Table of Contents OVERVIEW 2 1 SUPPORTED VPN TYPES 2 1.1 OD VPN CLIENT 2 1.2 SUPPORTED PROTOCOLS AND CONFIGURATION 2 2 OD VPN CONFIGURATION 2 2.1
More informationMCTS Guide to Microsoft Windows 7. Chapter 14 Remote Access
MCTS Guide to Microsoft Windows 7 Chapter 14 Remote Access Objectives Understand remote access and remote control features in Windows 7 Understand virtual private networking features in Windows 7 Describe
More informationWindows Server 2003 Remote Access Overview
Windows Server 2003 Remote Access Overview Microsoft Corporation Published: March 2003 Abstract Remote access allows users with remote computers to create a logical connection to an organization network
More informationExecutive Summary and Purpose
ver,1.0 Hardening and Securing Opengear Devices Copyright Opengear Inc. 2013. All Rights Reserved. Information in this document is subject to change without notice and does not represent a commitment on
More informationChapter 10 Security Protocols of the Data Link Layer
Chapter 10 Security Protocols of the Data Link Layer IEEE 802.1x Point-to-Point Protocol (PPP) Point-to-Point Tunneling Protocol (PPTP) [NetSec], WS 2006/2007 10.1 Scope of Link Layer Security Protocols
More informationSecurity Technology: Firewalls and VPNs
Security Technology: Firewalls and VPNs 1 Learning Objectives Understand firewall technology and the various approaches to firewall implementation Identify the various approaches to remote and dial-up
More informationERserver. iseries. Remote Access Services: PPP connections
ERserver iseries Remote Access Services: PPP connections ERserver iseries Remote Access Services: PPP connections Copyright International Business Machines Corporation 1998, 2002. All rights reserved.
More informationThis chapter describes how to set up and manage VPN service in Mac OS X Server.
6 Working with VPN Service 6 This chapter describes how to set up and manage VPN service in Mac OS X Server. By configuring a Virtual Private Network (VPN) on your server you can give users a more secure
More informationChapter 17 Determining Windows 2000 Network Security Strategies
625 CHAPTER 17 Determining Windows 2000 Network Security Strategies Today, most organizations want their computer infrastructure connected to the Internet because it provides valuable services to their
More informationWireless VPN White Paper. WIALAN Technologies, Inc. http://www.wialan.com
Wireless VPN White Paper WIALAN Technologies, Inc. http://www.wialan.com 2014 WIALAN Technologies, Inc. all rights reserved. All company and product names are registered trademarks of their owners. Abstract
More informationMatrix Technical Support Mailer 167 NAVAN CNX200 PPTP VPN with Windows Client
Matrix Technical Support Mailer 167 NAVAN CNX200 PPTP VPN with Windows Client 22/07/2014 Dear Friends, This mailer helps you in understanding and configuring PPTP VPN of Matrix NAVAN CNX200 with Windows
More informationHigher National Unit Specification. General information for centres. Unit title: Enhancing Network Security and Configuring Remote Access Methods
Higher National Unit Specification General information for centres Unit code: D7JV 35 Unit purpose: This Unit is designed to enable candidates to increase network security through authentication, encryption
More informationEnterprise Security Management CheckPoint SecuRemote VPN v4.0 for pcanywhere
Enterprise Security Management CheckPoint SecuRemote VPN v4.0 for pcanywhere White Paper 7KH#&KDOOHQJH Virtual Private Networks (VPNs) provides a powerful means of protecting the privacy and integrity
More informationBuilding Remote Access VPNs
Building Remote Access VPNs 124 Grove Street, Suite 309 Franklin, MA 02038 877-4-ALTIGA www.altiga.com Building Remote Access VPNs: Harnessing the Power of the Internet to Reduce Costs and Boost Performance
More informationTi m b u k t up ro. Timbuktu Pro Enterprise Security White Paper. Contents. A secure approach to deployment of remote control technology
The #1 Remote Control and File Transfer Software Contents 1 Introduction 1 Application Level Security 2 Network Level Security 2 Usage Examples 4 Summary 4 Appendix A Setting Up a Firewall for Timbuktu
More informationCase Study for Layer 3 Authentication and Encryption
CHAPTER 2 Case Study for Layer 3 Authentication and Encryption This chapter explains the basic tasks for configuring a multi-service, extranet Virtual Private Network (VPN) between a Cisco Secure VPN Client
More informationCS 393/682 Network Security. Nasir Memon Polytechnic University Module 7 Virtual Private Networks
CS 393/682 Network Security Nasir Memon Polytechnic University Module 7 Virtual Private Networks Course Logistics Midterm next week. Old exams posted Brief review at end of this module HW 4 assigned, due
More informationIntranet, Extranet, Firewall
Indian Institute of Technology Kharagpur Intranet, Extranet, Firewall Prof. Indranil Sen Gupta Dept. of Computer Science & Engg. I.I.T. Kharagpur, INDIA Lecture 31: Intranet, Extranet, Firewall On completion,
More informationGPRS / 3G Services: VPN solutions supported
GPRS / 3G Services: VPN solutions supported GPRS / 3G VPN soluti An O2 White Paper An O2 White Paper Contents Page No. 3 4-6 4 5 6 6 7-10 7-8 9 9 9 10 11-14 11-12 13 13 13 14 15 16 Chapter No. 1. Executive
More informationL2F Case Study Overview
LF Case Study Overview Introduction This case study describes how one Internet service provider (ISP) plans, designs, and implements an access virtual private network (VPN) by using Layer Forwarding (LF)
More informationSophos UTM. Remote Access via PPTP. Configuring UTM and Client
Sophos UTM Remote Access via PPTP Configuring UTM and Client Product version: 9.000 Document date: Friday, January 11, 2013 The specifications and information in this document are subject to change without
More informationChapter 5. Data Communication And Internet Technology
Chapter 5 Data Communication And Internet Technology Purpose Understand the fundamental networking concepts Agenda Network Concepts Communication Protocol TCP/IP-OSI Architecture Network Types LAN WAN
More informationReadyNAS Remote White Paper. NETGEAR May 2010
ReadyNAS Remote White Paper NETGEAR May 2010 Table of Contents Overview... 3 Architecture... 3 Security... 4 Remote Firewall... 5 Performance... 5 Overview ReadyNAS Remote is a software application that
More informationNetwork Security [2] Plain text Encryption algorithm Public and private key pair Cipher text Decryption algorithm. See next slide
Network Security [2] Public Key Encryption Also used in message authentication & key distribution Based on mathematical algorithms, not only on operations over bit patterns (as conventional) => much overhead
More informationModule 10: Supporting Remote Users
Module 10: Supporting Remote Users Contents Overview 1 Establishing Remote Access Connections 2 Connecting to Virtual Private Networks 13 Configuring Inbound Connections 17 Configuring Authentication Protocols
More informationWAN Data Link Protocols
WAN Data Link Protocols In addition to Physical layer devices, WANs require Data Link layer protocols to establish the link across the communication line from the sending to the receiving device. 1 Data
More informationBackbone. Taking a Peek Into Virtual Private Networks POP. Internet
Taking a Peek Into Virtual Private Networks Backbone POP Internet Copyright 2001-2002 Global TechPro. All rights reserved. Joseph Alvarez Global TechPro, LLC 5659 Columbia Pike #200 Falls Church, Virginia
More informationHow To Establish Site-to-Site VPN Connection. using Preshared Key. Applicable Version: 10.00 onwards. Overview. Scenario. Site A Configuration
How To Establish Site-to-Site VPN Connection How To Establish Site-to-Site IPSec VPN Connection using Preshared key using Preshared Key Applicable Version: 10.00 onwards Overview IPSec is an end-to-end
More information10 WIRELESS, REMOTE, AND WIDE AREA NETWORKING
10 WIRELESS, REMOTE, AND WIDE AREA NETWORKING PROJECTS Project 10.1 Project 10.2 Project 10.3 Project 10.4 Project 10.5 Project 10.6 Understanding Key Concepts Understanding Wireless Technologies Setting
More informationNetwork Access Security. Lesson 10
Network Access Security Lesson 10 Objectives Exam Objective Matrix Technology Skill Covered Exam Objective Exam Objective Number Firewalls Given a scenario, install and configure routers and switches.
More informationModule 6. Configuring and Troubleshooting Routing and Remote Access. Contents:
Configuring and Troubleshooting Routing and Remote Access 6-1 Module 6 Configuring and Troubleshooting Routing and Remote Access Contents: Lesson 1: Configuring Network Access 6-3 Lesson 2: Configuring
More informationVPN. VPN For BIPAC 741/743GE
VPN For BIPAC 741/743GE August, 2003 1 The router supports VPN to establish secure, end-to-end private network connections over a public networking infrastructure. There are two types of VPN connections,
More informationThe next generation of knowledge and expertise Wireless Security Basics
The next generation of knowledge and expertise Wireless Security Basics HTA Technology Security Consulting., 30 S. Wacker Dr, 22 nd Floor, Chicago, IL 60606, 708-862-6348 (voice), 708-868-2404 (fax), www.hta-inc.com
More information"ASM s INTERNATIONAL E-Journal on Ongoing Research in Management and IT"
To Study the Overall Cloud Computing Security Using Virtual Private Network. Aparna Gaurav Jaisingpure/Gulhane Email id: aparnagulhane@gmail.com Dr.D.Y.Patil Vidya Pratishthan s Dr. D.Y Patil College of
More informationInternet Privacy Options
2 Privacy Internet Privacy Sirindhorn International Institute of Technology Thammasat University Prepared by Steven Gordon on 19 June 2014 Common/Reports/internet-privacy-options.tex, r892 1 Privacy Acronyms
More informationIBM enetwork Software White Paper enetwork VPNs--IBM s Virtual Private Network Solutions
IBM enetwork Software White Paper enetwork s--ibm s Virtual Private Network Solutions Abstract In this paper, we begin by defining a virtual private network () and explaining the benefits that customers
More informationSetting up VPN Access for Remote Diagnostics Support
Setting up VPN Access for Remote Diagnostics Support D. R. Joseph, Inc. supports both dial-up and Internet access for remote support of 3GIBC1 and LF-Sizer control systems. This document describes how
More informationRemote Connectivity for mysap.com Solutions over the Internet Technical Specification
Remote Connectivity for mysap.com Solutions over the Technical Specification June 2009 Remote Connectivity for mysap.com Solutions over the page 2 1 Introduction SAP has embarked on a project to enable
More informationSite to Site Virtual Private Networks (VPNs):
Site to Site Virtual Private Networks Programme NPFIT DOCUMENT RECORD ID KEY Sub-Prog / Project Information Governance NPFIT-FNT-TO-IG-GPG-0002.01 Prog. Director Mark Ferrar Owner Tim Davis Version 1.0
More informationINTERNET SECURITY: FIREWALLS AND BEYOND. Mehernosh H. Amroli 4-25-2002
INTERNET SECURITY: FIREWALLS AND BEYOND Mehernosh H. Amroli 4-25-2002 Preview History of Internet Firewall Technology Internet Layer Security Transport Layer Security Application Layer Security Before
More informationIP-VPN Architecture and Implementation O. Satty Joshua 13 December 2001. Abstract
Abstract Virtual Private Networks (VPNs) are today becoming the most universal method for remote access. They enable Service Provider to take advantage of the power of the Internet by providing a private
More information13 Virtual Private Networks 13.1 Point-to-Point Protocol (PPP) 13.2 Layer 2/3/4 VPNs 13.3 Multi-Protocol Label Switching 13.4 IPsec Transport Mode
13 Virtual Private Networks 13.1 Point-to-Point Protocol (PPP) PPP-based remote access using dial-in PPP encryption control protocol (ECP) PPP extensible authentication protocol (EAP) 13.2 Layer 2/3/4
More informationFirewalls and VPNs. Principles of Information Security, 5th Edition 1
Firewalls and VPNs Principles of Information Security, 5th Edition 1 Learning Objectives Upon completion of this material, you should be able to: Understand firewall technology and the various approaches
More informationAPNIC elearning: IPSec Basics. Contact: training@apnic.net. esec03_v1.0
APNIC elearning: IPSec Basics Contact: training@apnic.net esec03_v1.0 Overview Virtual Private Networks What is IPsec? Benefits of IPsec Tunnel and Transport Mode IPsec Architecture Security Associations
More informationBuilding scalable IPSec infrastructure with MikroTik. IPSec, L2TP/IPSec, OSPF
Building scalable IPSec infrastructure with MikroTik IPSec, L2TP/IPSec, OSPF Presenter information Tomas Kirnak Network design Security, wireless Servers Virtualization MikroTik Certified Trainer Atris,
More informationVirtual Private Networks
Virtual Private Networks Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu Audio/Video recordings of this lecture are available at: http://www.cse.wustl.edu/~jain/cse571-09/
More informationVPN s and Mobile Apps for Security Camera Systems: EyeSpyF-Xpert
VPN s and Mobile Apps for Security Camera Systems: EyeSpyF-Xpert Contents: 1.0 Introduction p2 1.1 Ok, what is the problem? p2 1.2 Port Forwarding and Edge based Solutions p2 1.3 What is a VPN? p2 1.4
More informationLinux Web Based VPN Connectivity Details and Instructions
Linux Web Based VPN Connectivity Details and Instructions UMDNJ s Web-based VPN utilizes an SSL Based Cisco Application that provides VPN functionality without having to install a full client for end users
More informationADMINISTRATIVE POLICY # 32 8 117 (2014) Remote Access. Policy Number: ADMINISTRATIVE POLICY # 32 8 117 (2014) Remote Access
Policy Title: Remote Access Policy Type: Administrative Policy Number: ADMINISTRATIVE POLICY # 32 8 117 (2014) Remote Access Approval Date: 05/20/2014 Revised Responsible Office: Office of Information
More informationOvercoming the Performance Limitations of Conventional SSL VPN April 26, 2006
Overcoming the Performance Limitations of Conventional SSL VPN April 26, 2006 NeoAccel, Inc. 2055 Gateway Place, Suite 240 San Jose, CA 95110 Tel: +1 (408) 274 8000 Fax: +1 (408) 274 8044 Web: www.neoaccel.com
More informationRemote Access Security
Glen Doss Towson University Center for Applied Information Technology Remote Access Security I. Introduction Providing remote access to a network over the Internet has added an entirely new dimension to
More informationTechnical White Paper
Instant APN Technical White Paper Introduction AccessMyLan Instant APN is a hosted service that provides access to a company network via an Access Point Name (APN) on the AT&T mobile network. Any device
More informationVIRTUAL PRIVATE NETWORKS: SECURE REMOTE ACCESS OVER THE INTERNET
51-10-38 DATA COMMUNICATIONS MANAGEMENT VIRTUAL PRIVATE NETWORKS: SECURE REMOTE ACCESS OVER THE INTERNET John R. Vacca INSIDE Remote User Access over the Internet; Connecting Networks over the Internet;
More informationSSL VPN vs. IPSec VPN
SSL VPN vs. IPSec VPN White Paper 254 E. Hacienda Avenue Campbell, CA 95008 www.arraynetworks.net (408) 378-6800 1 SSL VPN vs. IPSec VPN Copyright 2002 Array Networks, Inc. SSL VPN vs. IPSec VPN White
More informationSSL VPN Technical Primer
4500 Great America Parkway Santa Clara, CA 95054 USA 1-888-NETGEAR (638-4327) E-mail: info@netgear.com www.netgear.com SSL VPN Technical Primer Q U I C K G U I D E Today, small- and mid-sized businesses
More informationIntroduction to WAN Technologies
CHAPTER 3 Chapter Goals Become familiar with WAN terminology. Learn about different types of WAN connections. Become familiar with different types of WAN equipment. This chapter introduces the various
More informationProCurve Secure Access 700wl Series Wireless Data Privacy Technical Brief
ProCurve Networking by HP ProCurve Secure Access 700wl Series Wireless Data Privacy Technical Brief Introduction... 2 The Data Security Problem in the Wireless World... 2 ProCurve 700wl Series Wireless
More informationGPRS and 3G Services: Connectivity Options
GPRS and 3G Services: Connectivity Options An O2 White Paper Contents Page No. 3-4 5-7 5 6 7 7 8-10 8 10 11-12 11 12 13 14 15 15 15 16 17 Chapter No. 1. Executive Summary 2. Bearer Service 2.1. Overview
More informationNetwork Security Topologies. Chapter 11
Network Security Topologies Chapter 11 Learning Objectives Explain network perimeter s importance to an organization s security policies Identify place and role of the demilitarized zone in the network
More informationVPN VPN requirements Encryption VPN-Types Protocols VPN and Firewalls
Overview VPN VPN requirements Encryption VPN-Types Protocols VPN and Firewalls Computer Net Lab/Praktikum Datenverarbeitung 2 1 VPN - Definition VPNs (Virtual Private Networks) allow secure data transmission
More informationVPN Lesson 2: VPN Implementation. Summary
VPN Lesson 2: VPN Implementation Summary 1 Notations VPN client (ok) Firewall Router VPN firewall VPN router VPN server VPN concentrator 2 Basic Questions 1. VPN implementation options for remote users
More informationHow To Configure Apple ipad for Cyberoam L2TP
How To Configure Apple ipad for Cyberoam L2TP VPN Connection Applicable to Version: 10.00 (All builds) Layer 2 Tunneling Protocol (L2TP) can be used to create VPN tunnel over public networks such as the
More informationLogical & Physical Security
Building a Secure Ethernet Environment By Frank Prendergast Manager, Network Certification Services Schneider Electric s Automation Business North Andover, MA The trend toward using Ethernet as the sole
More information21.4 Network Address Translation (NAT) 21.4.1 NAT concept
21.4 Network Address Translation (NAT) This section explains Network Address Translation (NAT). NAT is also known as IP masquerading. It provides a mapping between internal IP addresses and officially
More informationCTS2134 Introduction to Networking. Module 07: Wide Area Networks
CTS2134 Introduction to Networking Module 07: Wide Area Networks WAN cloud Central Office (CO) Local loop WAN components Demarcation point (demarc) Consumer Premises Equipment (CPE) Channel Service Unit/Data
More informationFireware How To Authentication
Fireware How To Authentication How do I configure my Firebox to authenticate users against my existing RADIUS authentication server? Introduction When you use Fireware s user authentication feature, you
More informationUnderstanding VPN Technology Choices
Understanding VPN Technology Choices Presented by: Rob Pantazelos, Network Administrator Brown Rudnick, LLP The most current version of this presentation can be downloaded at: http://www.brownrudnick.com/nr/ilta2008_vpn.ppt
More information