Virtual
Private Networks
Virtual Private Networks or VPNs provide secure methods of
communicating over insecure networks like the Internet as
well as within an organization. VPNs encrypt traffic between
end points and can provide security for data in transit. VPNs
create an encrypted tunnel between end points. This provides
confidentiality and integrity of the data.
VPNs can increase the load on network devices. Security of
VPNs comes at a price; network traffic will increase, which
may lead to delays. VPNs can also significantly impact the
performance of some devices. With the need to create encryption
keys that are becoming longer, encryption and decryption calculations
will take more host resources. Encrypted traffic that passes
through firewalls from internal systems cannot be monitored.
Content filters, like virus protection, cannot access the
encrypted traffic.
Configuring VPNs can also be very challenging, especially
between different types of devices. When implementing a VPN
you need to know the type of encryption, authentication, hashing,
mode, and a number of technical parameters to get the tunnel
to function correctly.
VPN's key benefits include the ability to maintain a secure
channel across an insecure networks. This allows for telecommuters
to access corporate resources from home in a secure manner.
This also provides a confidentiality and a level of authentication.
We know how to configure VPNs. Our expertise allows companies
to leverage the Internet as a means of extending network services
to remote offices and telecommuters. We have implemented numerous
VPNs, and we are experts in configuring cross-vendor and platform
VPNs.
© 2003 Hudson Business Networks
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