PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) solution. Boasting an impressive feature set including a...
Best Illumio Zero Trust Segmentation Alternatives ranked by AI · updated Aug 2026
Illumio Zero Trust Segmentation applies workload-level security policies across data centers, clouds, endpoints, and hybrid environments. It maps application dependencies and enforces segmentation independently of the underlying network topology.
Top 6 Illumio Zero Trust Segmentation alternatives
Cisco TrustSec provides identity-based access control and segmentation across Cisco network infrastructure. It uses security group tags to enforce policy without relying...
Pros
- Uses security group tags to simplify policy across changing IP addresses
- Integrates deeply with Cisco switching, wireless, routing, and security infrastructure
- Supports scalable identity-based segmentation without creating large numbers of VLANs
Cons
- Works best in predominantly Cisco environments
- Requires compatible hardware, software releases, and licensing
- Less suitable for heterogeneous networks than vendor-neutral NAC platforms
Quote-based; typically included with eligible Cisco licensing
FortiNAC is a network access control platform for enterprises that discovers devices, assesses endpoint compliance, and controls access across wired, wireless, and...
Pros
- Strong integration with Fortinet firewalls, switches, and access points
- Agentless device discovery supports unmanaged IoT and operational technology devices
- Automates policy enforcement, quarantine, and network segmentation
Cons
- Less vendor-neutral than Cisco ISE or Forescout in Fortinet-heavy deployments
- Policy configuration can be complex for large heterogeneous networks
- Typically requires a separate enterprise license and implementation services
4
Forescout Platform
Forescout Technologies
Forescout Platform provides agentless device discovery, classification, compliance assessment, and automated control across enterprise IT, IoT, OT, and medical environments. It is...
Pros
- Very strong visibility across IT, IoT, OT, and unmanaged devices
- Broad integrations with network, endpoint, SIEM, and security tools
- Useful for complex multivendor environments and regulated industries
Cons
- Can require substantial tuning and operational expertise
- Pricing is generally oriented toward larger enterprises
- Less straightforward for small deployments than cloud NAC products
5
Portnox Cloud
Portnox
Portnox Cloud is a cloud-delivered network access control service for authenticating users and devices across wired, wireless, and remote networks. It emphasizes...
Pros
- Cloud-native deployment avoids dedicated NAC appliances
- Supports certificate-based authentication and zero-trust policies
- Faster to deploy than traditional on-premises NAC platforms
Cons
- Less suitable than Cloudpath for organizations needing extensive local appliance control
- Advanced capabilities depend on endpoint and identity integrations
- Cloud dependency may not suit isolated or highly regulated networks
6
ClearPass
HPE Aruba Networking
ClearPass is a network access control platform for enterprises managing wired, wireless, and IoT access. It provides policy enforcement, device profiling, authentication,...
Pros
- Broader multivendor support than Cisco TrustSec
- Strong device profiling, guest access, and BYOD workflows
- Mature policy engine for wired and wireless NAC deployments
Cons
- More operationally complex than cloud-native NAC products
- Requires separate infrastructure and administration from Aruba networking hardware
- Licensing and appliance sizing can be difficult to estimate
Quote-based
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