Virtual Private Network (VPN)


Most companies these days have workers and facilities spread out around the city, across the country or around the world, and there is one thing that all of them need: A way to maintain fast, secure and reliable communications wherever their offices are.

Likewise, more and more small businesses are incorporating mobile workers, employees who telecommute, employers who want to work from home during the weekend, and partners such as the accountant who from time to time requires access to the business' accounting data.

How Does a VPN Work?

Basically, a VPN is a private network that uses a public network (the Internet) to connect remote sites or users together. Instead of using a dedicated, real-world connection such as leased line, a VPN uses "virtual" connections routed through the Internet between the company's private network and the remote site or employee.

A typical VPN might have a main LAN at the head office of a company, other LANs at remote offices or facilities and individual users connecting from out in the field.

Virtual Private Network overview

What are the advantages of a VPN?

A well-designed VPN can greatly benefit a company. For example, it can:

  • Extend geographic connectivity
  • Improve security
  • Reduce operational costs
  • Reduce transit time and transportation costs for remote users
  • Improve productivity
  • Simplify network topology
  • Provide global networking opportunities
  • Provide telecommuter support

What features are needed in a well-designed VPN?

It should incorporate:

  • Security
  • Reliability
  • Scalability
  • Network management
  • Policy management

Is it Secure?

All VPN communications are encrypted and authenticated with industry-standard algorithms and protocols (IPSec tunneling using AES and DES/triple DES encryption). Encrypting the data at both ends assures the secrecy and integrity of the information transmitted.

How big does one need to be to benefit from a VPN?

With a VPN you can organize as little as two computers with an Internet connection into their own virtual network for direct secure communication. Think:

  • Secure peer-to-peer
  • Access computers remotely
  • Print remotely
  • Use Windows File Sharing
  • Communicate directly
  • Stay connected

Is it Flexibe?

New locations and mobile users can be added to your network at any time. As part of our service offering, Toronto Computer Help undertakes and coordinates all changes as needed.

Our VPN Solutions

Toronto Computer Help can securely and seamlessly connect your offices, home users, mobile workers and partners, no matter where they are in the world, into a single virtual private network where they can share applications data, files and printers just as if they were together in the same building!

Unlike other vendors' solutions that depend on the availability of a central location, in our "Fully Meshed" VPN all locations are connected directly and can communicate with one another.

All the setup can be done remotely from our offices in Toronto, Ontario, with little to no disruption to your business activities.


VPN diagram by Ludovic Ferrre, used under the terms of the GNU Free Documentation License.