Cilium is a free network access control tool. Goldilock TruAirgap™ is a commercial network access control tool by Goldilock. Compare features, ratings, integrations, and community reviews side by side to find the best network access control fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Platform teams running Kubernetes on-premises or in hybrid clouds will get the most from Cilium because its eBPF kernel-level enforcement eliminates the latency and blind spots of traditional overlay networking. With 23,959 GitHub stars and active deployments at scale across financial services and public sector organizations, Cilium's approach to policy enforcement at the dataplane level is proven; it also handles observability without requiring sidecar injection, which keeps resource overhead predictable. Not the right fit for teams needing a managed SaaS experience or those prioritizing CSPM and infrastructure compliance scanning over network microsegmentation.
Enterprise and mid-market teams protecting critical infrastructure or handling high-stakes third-party access will value Goldilock TruAirgap™ for its physical, out-of-band isolation that survives network compromise. The 12-port Layer 1 switching with non-IP management and SMS-based authentication means an attacker controlling your production network cannot flip a port without a separate, parallel command channel. The tool strengthens PR.IR capabilities by design; it's weak on RS.MI, so pair it with incident response automation rather than expecting TruAirgap™ to contain lateral movement on its own. Skip this if your threats are primarily application-layer or you lack dedicated infrastructure staff to manage per-port scheduling.
Cilium is a networking, observability, and security solution with an eBPF-based dataplane.
Hardware appliance for remote, out-of-band physical network isolation.
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Common questions about comparing Cilium vs Goldilock TruAirgap™ for your network access control needs.
Cilium: Cilium is a networking, observability, and security solution with an eBPF-based dataplane..
Goldilock TruAirgap™: Hardware appliance for remote, out-of-band physical network isolation. built by Goldilock. headquartered in United Kingdom. Core capabilities include Remote port-level connect/disconnect via out-of-band SMS commands, 12-port OSI Layer 1 Ethernet switching with up to 10Gbps per port pair, Non-IP out-of-band management interface accessible via web browser..
Both serve the Network Access Control market but differ in approach, feature depth, and target audience.
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