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VPN :
 Here's yet another pioneering announcement from
Speed Online - Gujarat's first Virtual Private Network (VPNs), cost-effective Private Network option for your business. What is more, VPNs from
Speed Online comes with an added assurance of total security and secrecy.
These VPNs ( Virtual Private Networks) are the perfect networking option for entrepreneurs such as Stockbrokers(who operate through a network of sub-brokers) and Banks (who can be networked with its branches).
Speed Online has developed focused expertise in innovative encryption methods using state-of-the net technologies like Firewall, to ensure security without compromise.
What is more, Speed Online can offer your company SVPNs throught Leased Line, or on Cable. It can also provide a combination version.
So go ahead. Empower your business with as SVPN solution from Speed Online.
What is a Virtual Private Network?
Normally if an organization wants to have a network between offices located in various cities of India they have to take dedicated lines either from Telecom Department on a V-SAT link between the Head Office and branch offices. This becomes very expensive and difficult to manage. To get the same benefits of a Private network without spending the full cost of it is achieved by VPNs. As name goes they are your private networks riding on the public Internet network without really spending for it.
Virtual Private Network solutions allow you to build a high-performance, Internet-based network that's flexible, cost effective, and easy to manage and more aligned with your business. These solutions provide high-performance, optimized intranet VPN capability over a wide range of access technologies, including traditional T1/E1, Frame Relay and ISDN, as well as new "last mile" services such as DSL, cable and wireless. Virtual Private Networks (VPN) are networks deployed on a public network infrastructure that employ the same security, management, and quality of service policies applied in a private network.
Why VPN infrastructure?
For the enterprise customer, VPNs are an alternative WAN infrastructure that replace or augment existing private networks that utilize leased-line or Frame Relay/ATM networks.
For the Service Provider, VPNs are a fundamental building block in delivering New World services that benefit their business customers as well as themselves.
For Small to Medium Business, VPNs connect branch offices and remote users by utilizing a shared or public network, such as the Internet, while providing the same security and availability as a private network.
How does a VPN work?
To enable distributed private networks to communicate securely with each other over an untrusted public network, there is a need to safeguard the data from being intercepted.
A VPN decreases the cost of communications, as Internet access is generally local and mush less expensive than dedicated remote Access server (RAS) connections.
The main element of the VPN concept lies at the gateways between the private networks and the public networks. Be it software-oriented, hardware-oriented or a combination of the two, this intermediate device acts on behalf of the private networks that it protects. When one of the local hosts sends data to another host in a remote network, the data must first pass from the private network through the public network, and then pass through gateway device that is protecting the host in the remote network at the receiving end.
A VPN safeguards the data by automatically encrypting it (thus, making it incomprehensible to a third party) before it is sent from one private network to another, encapsulating it into an IP packet, and then automatically decrypting the data at the receiving end. The gateway device can also double as a Firewall for the local network, denying harmful or malicious data access to the network, and managing the outgoing data to the public network (whether it is encrypted or not).
Benefits of using VPNs
Include cost savings and extending connectivity to telecommuters, mobile users and remote offices as well as to new constituencies, such as customers, suppliers and partners.
Speed Online delivers the most cost-effective and secure solution for intranet and extranet connectivity, by integrating security services into switch/router products. Customers also have the flexibility to deploy these solutions behind existing WAN routers or firewalls. Cost is streamlined by providing:
Flexibility to migrate from private WAN to VPN services according to specific requirements
Lower equipment costs by integrating VPN gateway and routing capability into a single device
Greater choice of the appropriate access technology at each site depending on telecommunications tariffs, application requirements and backup requirements.
Why VPN for You
Manifold Efficiency: The effects a VPN can have on an organization are dramatic: sales can be increased, product development can be accelerated, and strategic partnerships can be strengthened in a way never before possible. Prior to the advent of VPNs, the only other options for creating this type of communication were expensive leased lines or frame relay circuits. Internet access is generally local and much less expensive than dedicated Remote Access Server (RAS) connections.
Huge Cost Savings: Industry analyst, Forester Research Inc., concluded that for 1,000 users the differences in cost for traditional Remote Access Server (RAS) versus today's Internet-based VPN are significant. Also, VPN offers indirect cost saving as a result of reduced training and equipment requirements, increased flexibility and scalability.
Options available for VPN products
Despite the large (and rapidly expanding) number of VPN products, all fall into three broad categories: hardware-based systems, firewall-based VPNs and standalone VPN application packages.
Hardware Based
Most hardware-based VPN systems are encrypting routers. They are secure and easy to use, since they provide the nearest thing to "plug and play" encryption equipment available. They provide the highest network throughput of all VPN systems, since they don't waste processor overhead in running an operating system or other applications. However, they may not be as flexible as software-based systems. The best hardware VPN packages offer software-only clients for remote installation, and incorporate some of the access control features more traditionally managed by firewalls or other perimeter security devices.
Firewall-based
Firewall-based VPNs take advantage of the firewall's security mechanisms, including restricting access to the internal network. They also perform address translation; satisfy requirements for strong authentication; and serve up real-time alarms and extensive logging. Most commercial firewalls also "harden" the host operating system kernel by stripping out dangerous or unnecessary services, providing additional security for the VPN server. OS protection is a major plus, since very few VPN application vendors supply guidance on OS security. Performance may be a concern, especially if the firewall is already loaded -- however, some firewall vendors offer hardware-based encryption processors to minimize the impact of VPN management on the system.
Software based
Software-based VPNs are ideal in situations where both endpoints of the VPN are not controlled by the same organization (typical for client support requirements or business partnerships), or when different firewalls and routers are implemented within the same organization. At the moment, standalone VPNs offer the most flexibility in how network traffic is managed. Many software-based products allow traffic to be tunneled based on address or protocol, unlike hardware-based products, which generally tunnel all traffic they handle, regardless of protocol. Tunneling specific traffic types is advantageous in situations where remote sites may see a mix of traffic --which needs transport over a VPN (such as entries to a database at headquarters) and some that doesn't (such as Web surfing). In situations where performance requirements are modest (such as users connecting over dial-up links), software-based VPNs may be the best choice.
But software-based systems are generally harder to manage than encrypting routers. They require familiarity with the host operating system, the application itself, and appropriate security mechanisms. And some software VPN packages require changes to routing tables and network addressing schemes.
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