[TABLE] Access control isn't an either/or proposition. Enforcing security policy without hamstringing normal business activity is a balancing act that factors in device vulnerability and the criticality of the applications and data being accessed. Vernier Networks' EdgeWall 7000 puts enterprises in control of this process, automating business continuity through an intelligent integration of vulnerability assessment and access management.

Sitting in front of switches and wireless APs, the EdgeWall 7000 series of high-throughput appliances provides dynamic, granular access control based on identity and vulnerability assessment to protect critical apps and data from dangerously vulnerable or compromised devices. It allows normal business where risk exposure is acceptable. For example, critical re-sources, like financial records, must be protected at all costs, while an intranet page listing corporate polices or events can still be accessed by clients that have security flaws.

The appliance scans each device for vulnerabilities, performs a signature-based check for device traffic malware, and (if integrated with PatchLink's automated patching) determines patch level. This information is used for creating a security profile. Its decision-making is based on predetermined access policies, which match security profiles with identity profiles (defined groups of users or devices with common characteristics, e.g., wireless users).

Access rights can be granted or the device quarantined for remediation based on threat assessment.

The granularity of access policy creatio

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n is perhaps EdgeWall's greatest strength. Security managers determine what rights the user has to pass through to the appliance and what resources on the network will be made available. Access policy can be based on connection location, VLAN tags, time and date, client authentication, and identity.

Be warned: This isn't an appliance that gets dropped in front of your network and configured using a few wizards. Security mangers must have a comprehensive understanding of rights, authentication mechanisms, and vulnerability and patch management before tackling EdgeWall. That said, the interface for creating profiles and setting rights is straightforward and easy to navigate.

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