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FAQ & Troubleshooting

PortGuardNAC 1.1.15 · check Updates for the installed hotfix · ← back to documentation

What VM resources do I need for PortGuardNAC?

Plan at least 2 vCPU, 4 GB RAM and a dedicated 40 GB disk for ISO installation; 4 vCPU and a 100 GB disk are recommended for production. The unattended installer erases the selected disk. See the Quick Start Guide for network ports and deployment details.

Which switches are supported?

Any switch compliant with RFC 3580 supporting 802.1X and Dynamic VLAN (RADIUS attributes). PortGuard works with most vendors (Cisco, Aruba, HPE, MikroTik, Ubiquiti, etc.).

What happens when the license expires?

A 30-day evaluation restricts management at expiry and assigns new RADIUS authentications to the configured quarantine VLAN; without that VLAN, they are rejected. RADIUS stops seven days later. An expired paid license blocks management changes for 30 days, then locks management except license recovery; 802.1X authentication continues. An expired support term alone does not stop NAC. See the Knowledge Base for the full sequence.

Does the MAC anti-spoofing signal block a device?

No. A possible MAC reuse alert appears when one MAC has recent active RADIUS Accounting sessions on two different network devices. It is an advisory; it does not change VLANs or prove impersonation. Verify switch sessions and roaming before acting.

Can I use PortGuard without an internet connection?

The customer PoC ISO can start its initial trial offline. Core network-access enforcement runs locally. Online licensing, updates, telemetry, cloud backup and identity integrations may need outbound access if enabled; approve and document the actual egress policy.

How do I integrate on-premises Active Directory?

Via LDAP/LDAPS in Settings → Identity Providers. For Entra ID (cloud) see the dedicated guide.

Does the Standard tier have an endpoint limit?

Yes: the Standard license covers up to 25 endpoints, Professional up to 250. Enterprise has no endpoint limit.

How do I get support?

Email [email protected], or open a ticket from the partner portal. Free support is best effort with no guaranteed response time. Priority and Enterprise response targets apply only when agreed in a signed support contract.

Read the detailed KB articles: License and evaluation expiry · Possible MAC address reuse.

Can't find the answer? Write to [email protected].

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