This section provides information about troubleshooting firewall issues. What to read next Monitor and Troubleshoot Firewall on NSX ManagerThere are several steps to take when troubleshooting firewall. Troubleshooting Distributed Firewall on ESX HostsOn ESX hosts, follow these steps to troubleshoot the NSX distributed firewall (DFW) data path issues. See the NSX-T Data Center Command-Line Interface Reference for more firewall troubleshooting commands. Troubleshooting Distributed Firewall on KVM HostsTo troubleshoot firewall issues with a KVM host, you can look at the firewall rules that apply on the host. Troubleshooting Gateway FirewallUse the user interface and API to troubleshoot gateway firewall. Check Rule Realization StatusDFW rules can be created, updated, and deleted using both the UI and API. Distributed Firewall Packet LogsIf logging is enabled for firewall rules, you can look at the firewall packet logs to troubleshoot issues. Parent topic: Security
