Cisco ASA Audit Event: 210020

210020: LU PAT port reserve failed

Cisco ASA is a security device that provides the combined capabilities of a firewall, an antivirus, and an intrusion prevention system. It also facilitates virtual private network (VPN) connections. It helps to detect threats and stop attacks before they spread through the network.

Message: %ASA-3-210020:LU PAT port port reserve failed.

Event 210020 is generated when Stateful Failover is unable to allocate a specific PAT address that had been in use. 

How could you resolve this situation?

Synchronize the Active unit system memory with the Standby unit using the 'write standby' command.

Cisco ASA Auditing Tool

EventLog Analyzer is a comprehensive log management software with which you can centrally collect, analyze, and manage logs from all the different log sources in your network. You also get reports and alerts on your network security, making it a power-packed IT security tool.

Thank you.

Our support team will contact you shortly.

Manage your logs effortlessly using EventLog Analyzer.

  • Enter your email id
    Please enter a valid email id
  • Enter your phone number
  • Select demo date
  • By clicking 'Schedule a personalized demo', you agree to processing of personal data according to the Privacy Policy. You can unsubscribe from our mails at anytime.
Cisco ASA Auditing
Application Auditing & Reporting
Log Management