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Securing the IP Enterprise

Mobility is one of the hot buzzwords in IP networking spaces. Mobile workers, mobile devices, and ubiquitous service coverage present the holy grail of the workanywhere professional. This broadening of access, coupled with integration of VoIP and video services, creates a problem for enterprise security managers. Deperimeterization of the network has raised the bar on what it takes to effectively protect an enterprise. Enterprise businesses have implemented traditional security mechanisms ranging from firewalls and session border controllers to intrusion detection and prevention systems. They worked when the perimeter was a single connection to the Internet. In today's business environment, with highly mobile professionals connecting via all manner of devices, the perimeter is both nowhere and everywhere. But it's no longer a fixed, visible point in the network topology.