NAC Comparison Guide

Network Access Control has moved from a conceptual framework to a mature product category with a growing roster of established vendors. This comparison guide evaluates the leading NAC solutions across key dimensions to help you make an informed purchase decision.

Evaluation Criteria

  • Deployment architecture flexibility (inline vs. out-of-band)
  • Agent vs. agentless assessment capabilities
  • Integration with directory services (Active Directory, LDAP)
  • Network infrastructure integration (Cisco, HP, Juniper)
  • Guest and contractor access management
  • Remediation capabilities
  • Reporting and audit trail
  • Scalability and high availability

Leading Vendors

Cisco NAC Appliance (Clean Access): Broad market adoption, deep integration with Cisco infrastructure, available as inline appliance or as part of Cisco’s broader NAC framework.

Juniper Networks UAC: Strong integration with Juniper network infrastructure, policy-based access using IF-MAP protocol, flexible deployment options.

Bradford Networks: Strong out-of-band deployment model, deep network device integration, good guest management capabilities.

ConSentry Networks: Inline LAN security platform with integrated NAC, firewall, and IPS capabilities.

Enterasys Networks: Policy-based networking with integrated NAC, strong in educational environments.

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