An IPSec VPN connection is all or nothing, namely once the connection is established it is just as if you are actually on the local LAN. Quocirca analyst Bob Tarzey explains what's good about some common virtual private network (VPN) technologies.
When Avaya implemented an IP VPN and remote access policy for all its UK workers, it estimated that it saved around £4,000 a year per person in the process. All new RFPs from Fortune 500 companies say they want to move from a Frame Relay WAN to an...
VPN (virtual private network) is seen as the hardest remote working technology to manage by IT managers, claims research. IP telephony and PDAs linking to office email followed VPN as the trickiest systems to manage effectively.
In most cases, this means they will be using a laptop IP VPN client that encrypts data for transmission over the public internet, offering a measure of data integrity, if not the ultimate in wireless security.
There are really only two cons - an increase exposure of the corporate network (resolved by employee training and the clientless VPN device itself) and the capital investment required to install the device.
Acknowledging the incessant march of SSL VPNs - which use a standard web browser to access applications over the internet - has been the recent news that Nortel has introduced SSL into its heavy-duty IPSec VPN range.