VPN design

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  • How to calculate the cost of VPN links

    Do you need to upgrade the bandwidth of your virtual private network (VPN)? Calculating link capacity will help control the cost of VPN links.  Tip

  • Hardware vs. software VPNs: Choose the right enterprise solution

    Deciding between hardware vs. software VPNs is the first step in narrowing down the best VPN solution for your enterprise.  Tip

  • How to find a VPN firewall solution for your enterprise

    Choosing a VPN firewall solution is no easy task as the market is saturated with options. Use these tips to learn how to find a VPN firewall solution for your enterprise.  Tip

  • Knowing when to outsource VPN services

    While VPN services have historically been managed internally, many network managers are facing the need to outsource VPN services to third-party service providers. A number of factors go into this decision, with not only costs but management and the ...  Tip

  • How to set up an SSTP VPN to secure your enterprise network

    Learn how to set up an SSTP VPN (Secure Socket Tunneling Protocol Virtual Private Network) connection in order to secure the remote users on your enterprise wide area network (WAN). These instructions explain step-by-step what is required to create a...  Tip

  • Using a VPN is crucial for WAN managers trying to secure road warriors

    WAN managers must protect corporate data by ensuring that their road warriors are using a VPN, because being exposed on DEF CON's Wall of Sheep is the least of your worries.  Tip

  • Web SSL VPN introduction

    This Web SSL VPN introduction answers the question "What is a Web SSL VPN?" and explains SSL VPN advantages in remote access environments. Understand how they evolved from their lesser IPsec VPN counterparts, how they protect against hackers, how the...  Tip

  • Web SSL VPN advantages: Secure remote access

    View this business case to understand Web SSL VPN advantages and how they compare with traditional IPsec virtual private networks. Learn in this tip how secure remote access can be easier, faster and cheaper for enterprise wide area networks (WANs).  Tip

  • A history of VPN: Disadvantages of early virtual private networks

    This history of VPN explains why early virtual private network solutions proved disadvantageous for businesses and how the advent of newer VPNs has created more secure and simpler-to-deploy solutions for wide area networks (WANs) and remote users.  Tip

  • Remote, branch office VPN access with DSL

    Connecting multiple branch or remote offices to the main office can be done easily over DSL with a typical IPsec VPN solution; explore the options, including using a Cisco router.  Tip

  • See more Tips on VPN design

  • dynamic multipoint VPN (DMVPN)

    A dynamic multipoint virtual private network (DMVPN) is a secure network that exchanges data between sites without needing to pass traffic through an organization's headquarter VPN server or router.  Definition

  • virtual private network (VPN)

    A VPN is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or individual users with secure access to their organization's network. A VPN ensures privacy through security procedures and tunn...  Definition

  • virtual routing and forwarding (VRF)

    Virtual routing and forwarding (VRF) is a technology included in IP (Internet Protocol) network routers that allows multiple instances of a routing table to exist in a router and work simultaneously.  Definition

About VPN design

Our VPN design information will help network architects plan for the best use of VPN technology in the enterprise. Here you'll find case studies and best practices for site-to-site VPNs and client-to-site VPNs, as well as recommendations for when to use IPsec, SSL and MPLS, and when to build your own VPN vs. when to use a service provider.

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