D-Link DI-714 Network Router User Manual


 
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a wireless network card.
Most networks use hardware devices such as hubs or switches that
each cable can be connected to in order to continue the connection between
computers. A hub simply takes any data arriving through each port and
forwards the data to all other ports. A switch is more sophisticated, in
that a switch can determine the destination port for a specific piece of data.
A switch minimizes network traffic overhead and speeds up the
communication over a network.
Networks take some time in order to plan and implement correctly.
There are many types of scenarios to consider which could affect the
operability of a network.
Introduction to Virtual Private Networking
Virtual Private Networking (VPN) uses a publicly wired network (the
Internet) to securely connect two different networks as if they were the
same network. For example, an employee can access the corporate
network from home using VPN, allowing the employee to access files and
printers. Here are several different implementations of VPN that can be
used.
Point-to-Point Tunneling Protocol (PPTP)
PPTP uses proprietary means of connecting two private networks over the
Internet. PPTP is a way of securing the information that is communicated
between networks. PPTP secures information by encrypting the data
inside of a data packet.