Meeta Gupta's Building a virtual private network PDF

By Meeta Gupta

ISBN-10: 1931841810

ISBN-13: 9781931841818

Your small business needs to be attached in an effort to compete within the worldwide market. staff want to know that their company's community is out there at any time, from anyplace. A digital deepest community (VPN) accomplishes this by using distant connectivity applied sciences that mix present inner networks with the net to soundly speak details. construction a digital inner most community is your key to designing, enforcing, and securing an absolutely hooked up community that meets your small business wishes.

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Meeta Gupta's Building a virtual private network PDF

Your small business has to be attached on the way to compete within the worldwide industry. staff want to know that their company's community is obtainable at any time, from anywhere. A digital inner most community (VPN) accomplishes this through the use of distant connectivity applied sciences that mix current inner networks with the net to safely converse info.

Extra resources for Building a virtual private network

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These disadvantages include the following: ◆ High dependence on the Internet. The performance of a VPN-based network is highly dependent on the performance of the Internet. Leased lines guarantee the bandwidth that is specified in a contract between the ISP and the organization. However, no one can guarantee the performance of the Internet. An overload of traffic and congestion can negatively affect the performance of the entire VPN-based network. ◆ Lack of support to the legacy protocols. Present-day VPNs are entirely based on IP technology.

To ensure compatibility with an IP-based infrastructure, the following methods can be integrated into VPNs: ◆ Use of IP gateways. IP gateways convert (or translate) non-IP protocols to IP and vice versa. These devices can be either dedicated network devices or can be softwarebased solutions. As hardware devices, IP gateways are generally implemented at the edges of an organization’s intranet. As software-based solutions, IP gateways are installed on every server and are used to convert traffic to and from non-IP protocol to IP.

Therefore, to avoid unnecessary repetition of concepts, tunnels are not discussed here. VPN REQUIREMENTS Chapter 2 FIGURE 2-3 The six building blocks of a VPN. VPN Hardware As mentioned earlier, VPN hardware is mainly made up of VPN servers, VPN clients, and other hardware devices, such as VPN routers and concentrators. VPN Servers Generally, VPN servers are dedicated network devices running server software. Depending on the organization’s requirements, there might be one or more VPN servers.

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Building a virtual private network by Meeta Gupta

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