Business today is more geographically diverse than it has ever
been. Offices are spread, across regions, countries and in some
cases Internationally. Businesses of all sizes now have to consider
the impact of global
markets and logistics.
Laptop Battery At the same time business considerations also have to be made
about the threats of operating networks across these long-distance
environments. Security concerns over hackers, spies,
Denial-of-Service attacks and sending data over the Internet have
become key issues.
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Thinkpad The Internet has led to a technological evolution in
communications but for the aforementioned reasons shouldn't be
relied on entirely as a basis for fast, secure, and reliable
communications.
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Microsoft On the other hand non-Internet Virtual Private Networks
(VPN) are a low-cost, easy-to-implement a convenient solution for
mobile and remote business networking, which are being
used by businesses around the world as stable secure communications
medium.
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Laptop Computers This article considers the fundamentals of a VPN and importantly
what you should consider when purchasing one.
What is a VPN?
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Laptop Computer A virtual private network (VPN) is a network that uses a public
telecommunication infrastructure, such as the Internet, to provide
remote offices or individual users with secure access to their
organization's network.
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Desktop Computer A virtual private network can be contrasted with an expensive
system of owned or leased lines that can only be used by one
organization. The goal of a VPN is to provide the organization with
the same capabilities, but at a much lower cost.
Notebooks A VPN works by using the shared public infrastructure while
maintaining privacy through security procedures and
tunneling
protocols such as the Layer Two Tunneling
Protocol
(L2TP). In effect, the protocols, by
encrypting data at the sending end and decrypting it at the
receiving end, send the data through a "tunnel" that cannot be
"entered" by data that is not properly encrypted. An additional
level of security involves encrypting not only the data, but
also the originating and receiving network addresses.
Lenovo The diagram shows above shows there are three
options:
Hard Drive (1) I mplementing your own VPN ;
Managed VPN with two options - (2)
Network-based VPN or (3) Managed- Customer
Premises Equipment (CPE).
Travelstar Roll out your own VPN - If choosing to roll out
your own VPN you should make very careful consideration over 4 key
factors: (1) Internet connectivity; (2) Security Policy Server; (3)
VPN Gateway Solution; (4) ongoing management and maintenance at
all sites.
Gateway Managed VPN - For most companies, a
Managed VPN route is likely to be the most appropriate option. Many
companies with their own IT teams still opt for a managed VPN. This
is because the extensive out of hours maintenance and disparate
geographic nature of their businesses often mean shift-work and
many hours on the road. Also, the monthly cost of a managed VPN
service is often less than the monthly IT management expenditures,
not to mention the hardware investment.
Laptop Parts The chart gives 2 managed options:
Software (1) Network-based IP VPN . - The provider fully
manages a network-based IP VPN and it does not include specialised
customer CPE. However, it still has has the management drawbacks
mentioned above.
Hard Drives (2) Managed customer premise equipment (CPE) IP
VPN - Managed-CPE IP VPN services from a service provider
include installing the equipment, CPE management, and
connectivity.
Electronics Selecting a Managed VPN Service Provider on price alone
is seldom the best approach. Other important criteria
should be taken into account and asking these questions can avoid
costly vendor selection mistakes. For example, what is their
network architecture? Will the traffic touch the public Internet at
any time? What is their carrier capacity? Are they a strong robust,
stable provider? To make sure you select the right service provider
who will meet your needs, ask them following questions:
- Is the service provider a specialist in VPN
solutions?
- What do their clients say about them? (Past
& present)?
- What is their customer churn rate?
- How competitive is their pricing?
- What is their carrier capacity, how full is
it and what is the upgrade policy?
- Will they be around in 18 months time to
service your needs?
- Can they provide a scalable solution as your
company grows?
- How competent are their pre and after sales
people?
- What experience do the management have?
- How quickly can they provision your
services?
- Do they have a dedicated account
manager?
Canon Nathan Hill-Haimes is the Managing Director of
Managed
Communications Ltd and a serial entrepreneur, having built,
sold and turned around several Internet centric companies prior to
founding Managed Communications -
www.managedcomms.co.uk
Desktop Pc Managed Communications is a high-performance Managed VPN Service
provider - the company does not use the public internet to create
VPNs as experience has shown this is where many issues regarding
latency and security can occur. In addition to standard VPN
services bonding of lines enables higher capacity than other
service providers can offer to key VPN sites.
Managed network
Leased line
DSL MAX
Managed VPN
Business ADSL
Business SDSL
VOIP network
VOIP VPN
Bonded SDSL
QOS DSL
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