Abstract: A system, method, and apparatus are directed to managing access to a network. An agent may intercept a network packet transmitted by an enforcement point in response to a request from a device to join the network. The agent identifies, based on the network packet, a port number on the enforcement point at which the request is received. The agent may transmit the port number to a NACA to enable security enforcement operations to be performed on the device. Another device may reside outside the quarantined network and be enabled by the NACA to direct a remediation measure to be performed on the device using at least the port number. The NACA may spoof an ARP response with an address of the NACA to restrict access to resources. The NACA may also place the device into one of a plurality of quarantined networks.

Abstract: An apparatus, system, and method are directed towards enabling auditing of network vulnerabilities from multiple network vantage points virtually simultaneously. Multiple network vantage points may include, but are not limited to, remote/branch enterprise sites, devices on an enterprise perimeter, on either side of a security perimeter, and even through the security perimeter. In one embodiment, an auditor performs reflected audits thereby extending auditing of network vulnerabilities to provide a comprehensive 360 degree audit of internal, external, and remote enterprise network sites. In one embodiment, the present invention may be implemented employing a single auditing device, and one or more audit extension devices that are configured to extend the auditing device's audit reach. The auditing device and one or more audit extension devices may communicate using an encrypted network channel through a security perimeter and/or across multiple networks.

Abstract: An apparatus, system, and method are directed towards enabling auditing of network vulnerabilities from multiple network vantage points virtually simultaneously. Multiple network vantage points may include, but are not limited to, remote/branch enterprise sites, devices on an enterprise perimeter, on either side of a security perimeter, and even through the security perimeter. In one embodiment, an auditor performs reflected audits thereby extending auditing of network vulnerabilities to provide a comprehensive 360 degree audit of internal, external, and remote enterprise network sites. In one embodiment, the present invention may be implemented employing a single auditing device, and one or more audit extension devices that are configured to extend the auditing device's audit reach. The auditing device and one or more audit extension devices may communicate using an encrypted network channel through a security perimeter and/or across multiple networks.

Abstract: An apparatus, system, and method for managing dynamic network access control. The invention provides services and controlled network access that includes quarantining nodes so that they may be identified, audited, and provided an opportunity to be brought into compliance with a security policy. The invention is configured to detect a device seeking to join the network, and determine if the device is allowed to join the network. If the invention determines that the device is not to be allowed, the device may be quarantined using a VLAN. The suspect device may then be audited for vulnerabilities. If vulnerabilities are identified, remediation may be employed to guide the suspect device, a user, and/or administrator of the suspect device towards a resolution of the vulnerabilities, such that the device may be reconfigured for acceptance onto the network.

Abstract: The invention enables a client device that does not support IEEE 802.1X authentication to access at least some resources provided through a switch that supports 802.1X authentication by using dynamic authentication with different protocols. When the client device attempts to join a network, the switch monitors for an 802.1X authentication message from the client device. In one embodiment, if the client fails to send an 802.1X authentication message, respond to an 802.1X request from the switch, or a predefined failure condition is detected the client may be deemed incapable of supporting 802.1X authentication. In one embodiment, the client may be initially placed on a quarantine VLAN after determination that the client fails to perform an 802.1X authentication within a backoff time limit. However, the client may still gain access to resources based on various non-802.1X authentication mechanisms, including name/passwords, digital certificates, or the like.

Abstract: An apparatus, system, and method are directed towards enabling auditing of network vulnerabilities from multiple network vantage points virtually simultaneously. Multiple network vantage points may include, but are not limited to, remote/branch enterprise sites, devices on an enterprise perimeter, on either side of a security perimeter, and even through the security perimeter. In one embodiment, an auditor performs reflected audits thereby extending auditing of network vulnerabilities to provide a comprehensive 360 degree audit of internal, external, and remote enterprise network sites. In one embodiment, the present invention may be implemented employing a single auditing device, and one or more audit extension devices that are configured to extend the auditing device's audit reach. The auditing device and one or more audit extension devices may communicate using an encrypted network channel through a security perimeter and/or across multiple networks.