Remote Access VPN: Only single VPN gateway is involved in
Remote Access VPN. The negotiating the secure communication channel party with
the VPN is PC or laptops, which is connected to the internet and running VPN
client software. The VPN supports allowing telecommuters and traveling users to
communicate on the central network. It also allows the accessibility of servers
from different locations.
Site-to-Site Intranet VPN: Gateways at different physical
locations within the same business are allowed to negotiate a communication
that is secure over a channel across internet is known as a VPN channel. This
is done by Intranet VPN. The users from either side of the tunnel can
communicate with one another as if it were a single network. Strong encryption
and strict performance and bandwidth may be required to establish the
communication.
Site-to-Site Extranet VPN:
These are almost identical to Site-to-Site Intranet VPN. The only difference is
they are utilized for external business partners. In conjunction with VPN
tunnels, Firewall access restrictions are used so that the business partners
can only be able to gain secure access to specific data/resources, while not be
able to gain access to the information that is private to the corporate.
