What is VPN ??
A virtual private network (VPN) is a technology that creates an encrypted connection over a less secure network. The benefit of using a VPN is that it ensures the appropriate level of security to the connected systems when the underlying network infrastructure alone cannot provide it. The justification for using a VPN instead of a private network usually boils down to cost and feasibility: It is either not feasible to have a private network (e.g., for a traveling sales rep) or it is too costly to do so. The most common types of VPNs are remote-access VPNs and site-to-site VPNs.
VPN Products -
VPN Concentrator—Incorporating the most advanced encryption and authentication techniques available, Cisco VPN Concentrators are built specifically for creating a remote-access or site-to-site VPN and ideally are deployed where the requirement is for a single device to handle a very large number of VPN tunnels.
Cisco VPN Clients—Cisco offers both hardware and software VPN clients. The Cisco VPN Client (software) comes bundled with the Cisco VPN 3000 Series Concentrator at no additional cost.
VPN-Enabled Router/VPN-Optimized Router—All Cisco routers that run Cisco IOS® software support IPsec VPNs. The only requirement is that the router must run a Cisco IOS image with the appropriate feature set. The Cisco IOS VPN solution fully supports remote access, intranet and extranet VPN requirements.
Service Provider -
Pricing - $8.32
Country Serviced - 78
Out Score - 9.8
Pricing - $6.49
Country Serviced - 61
Out Score - 8.7
Pricing - $4.79
Country Serviced - 24
Out Score - 8.1
