Connectrix: Cisco: CA certificate is missing Basic constraints extension
Summary: Error while authenticating the CA certificate to configure AAA service on Switch.
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Symptoms
While authenticating the CA signed certificate, the below error is seen:
CA certificate is missing Basic constraints extension, could not perform CA authentication
Cause
Subject Type under Basic Constraints was set to NONE instead of CA.
Problematic Certificate:
Correct CA certificate as expected:
Resolution
Action Plan:
- Review the certificate for any errors or missing attributes.
- Remove any existing related configuration from the switches.
- Re-attempt the configuration from the beginning with a corrected certificate.
Additional Information
To open basic constraints of a CA certificate, use a web browser by visiting a secure (HTTPS) website. Click the padlock icon and select the certificate. Then navigating to the "Details" or "Extensions" tab to find the "Basic Constraints" section.
Affected Products
Connectrix MDS-Series HardwareArticle Properties
Article Number: 000368416
Article Type: Solution
Last Modified: 15 Sep 2025
Version: 1
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