Types of VPNs
Mainly there are two basic types of VPNs are
1. Remote-Access—Also called a Virtual Private Dial-up Network (VPDN), this is a user-to-LAN
connection used by a company that has employees who need to connect to the private network
from various remote locations. Typically, a corporation that wishes to set up a large remote-access
VPN provides some form of Internet dial-up account to their users using an Internet service
provider (ISP).
-->The telecommuters can then dial a number to reach the Internet and use their VPN client
software to access the corporate network. Remote-access VPNs permit secure, encrypted
connections between a company's private network and remote users through a third-party service
provider.
2. Site-to-Site—Through the use of dedicated equipment and large-scale encryption, a company can
connect multiple fixed sites over a public network such as the Internet. Each site needs only a
local connection to the same public network. Site-to-site VPNs can be further categorized into
intranets or extranets.
-->A site-to-site VPN built between offices of the same company is said to be an intranet VPN,
while a VPN built to connect the company to its partner or customer is referred to as an extranet
VPN.
Four major types of VPNs are in use today.
1. A router with added VPN capabilities. VPN routers can handle normal routing duties as well as
they can form VPNs over the Internet. This method is used to create VPN WAN links over the
Internet, usually between multiple company locations.
2. Another major type of VPN is one built into a firewall device.The benefit of using a firewall-
based VPN is that you can administer your network’s security and VPN security.
3. The third major type of VPN includes those offered as part of a network operating system. The
best example of this type is Windows RRAS Software These VPNs are most often used to support
remote access, and they are generally the least expensive to purchase and install.
4. The fourth major type is the SSL VPN, a relatively new category. An SSL VPN takes advantage
of the Secure Sockets Layer (SSL) encryption technology built into most web browsers to offer
VPN services through the web browser.
Mainly there are two basic types of VPNs are
1. Remote-Access—Also called a Virtual Private Dial-up Network (VPDN), this is a user-to-LAN
connection used by a company that has employees who need to connect to the private network
from various remote locations. Typically, a corporation that wishes to set up a large remote-access
VPN provides some form of Internet dial-up account to their users using an Internet service
provider (ISP).
-->The telecommuters can then dial a number to reach the Internet and use their VPN client
software to access the corporate network. Remote-access VPNs permit secure, encrypted
connections between a company's private network and remote users through a third-party service
provider.
2. Site-to-Site—Through the use of dedicated equipment and large-scale encryption, a company can
connect multiple fixed sites over a public network such as the Internet. Each site needs only a
local connection to the same public network. Site-to-site VPNs can be further categorized into
intranets or extranets.
-->A site-to-site VPN built between offices of the same company is said to be an intranet VPN,
while a VPN built to connect the company to its partner or customer is referred to as an extranet
VPN.
Four major types of VPNs are in use today.
1. A router with added VPN capabilities. VPN routers can handle normal routing duties as well as
they can form VPNs over the Internet. This method is used to create VPN WAN links over the
Internet, usually between multiple company locations.
2. Another major type of VPN is one built into a firewall device.The benefit of using a firewall-
based VPN is that you can administer your network’s security and VPN security.
3. The third major type of VPN includes those offered as part of a network operating system. The
best example of this type is Windows RRAS Software These VPNs are most often used to support
remote access, and they are generally the least expensive to purchase and install.
4. The fourth major type is the SSL VPN, a relatively new category. An SSL VPN takes advantage
of the Secure Sockets Layer (SSL) encryption technology built into most web browsers to offer
VPN services through the web browser.
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