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How to check the device's current date and time via serial console access?
Question: How do I check the device's current date and time via serial console access? Answer: You can check the current date and time using the CLI commands show date and show clock time.
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How to check the backed-up configuration file via console access?
Question: How do I check the backed-up configuration file via console access? Answer: You can check the configuration file using the CLI command show dir config-file.
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How to run a command to update NTP and obtain the correct date and time?
Question: How do I run a command to update NTP and obtain the correct date and time? Answer: You can run the CLI command cmd ntp update execute to update NTP, and check the result with the command cmd ntp update get-result.
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Is there a way to quickly test external interface internet access using a command?
Question: Is there a way to quickly test external interface internet access using a command? Answer: Yes, you can check interface access by running the command cmd internet-check bind ge2. For example, if ge2 is an external interface, you can bind it to quickly verify internet access.
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How to obtain the firewall interface's real-time throughput?
Question: How to obtain the firewall interface's real-time throughput? Answer: First, use the CLI command show interface to identify the interface name. Then, run the command show interface throughput name vlan60 to obtain the real-time throughput. To stop the command, press Ctrl + C.
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How to flush the DNS cache on a FLEX H firewall?
Question: How do I flush the DNS cache on a FLEX H firewall? Answer: You can flush the firewall's DNS cache by issuing the command: cmd dns proxy clear-cache.
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Why does the "file is reserved" error appear when uploading a configuration file in the setup wizard
Question: Why does the "file is reserved" error appear when uploading a backup configuration file in the setup wizard? Answer: The "file is reserved" error occurs because the uploaded configuration file is a system-reserved filename used internally by Zyxel firewalls for the current configuration. Uploading a file with the…
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Which USB partition table mode support on Zyxel firewall?
USB storage devices support both MBR (Master Boot Record) and GPT (GUID Partition Table) modes. However, all Zyxel firewalls only support USB storage in MBR mode. Since the system reads only the first partition during boot-up, if multiple partitions exist on the USB storage device, it will result in a mounting failure.
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Does the USG Flex H support site replicate and site move functions in the MSP service?
Question : Does the USG Flex H support site replicate and site move functions in the MSP service? Answer : Currently, MSP does not support the site replication and site move functions. These features are expected to be available in 2026.
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How do I create a static ARP entry on USG FLEX H Series devices?
Question: How do I create a static ARP entry on USG FLEX H Series devices? Answer: Yes, it is possible to create a static ARP (Address Resolution Protocol) entry on the USG FLEX H series devices, similar to ZLD devices. Below are the steps to configure it: Access the device's CLI interface. Use the following command to…
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How Can I Copy a Configuration Template for H Series in Nebula Control Center?
Question: How can I copy a configuration template for USG FLEX H Series in Nebula Control Center? Answer: At the time of writing (version 19.10), the ability to copy a complete configuration template to a new organization for the USG FLEX H Series in Nebula Control Center is not directly available as a configurable…
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How can I check the e-mail notification status through the CLI on the USG Flex H?
Question : How can I check the e-mail notification status through the CLI on the USG Flex H? Answer : The user can use the CLI 'show notification status mail' to check the e-mail notification status. For instance, the user checks the e-mail notification status on the USG Flex 200HP. The CLI result: The GUI settings:
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How do I check the traffic statistics of the ports through the CLI on the USG Flex H model?
Question: How do I check the traffic statistics of the ports through the CLI on the USG Flex H model? Answer: The user can use the CLI command 'show port statistics | no-pager' to check the traffic statistics of interfaces. For instance, the user can use this CLI to check the current port statistics on the USG Flex 200H.…
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How do I check the GUI interface through the CLI on the USG Flex H model?
Question : How do I check the GUI interface through the CLI on the USG Flex H model? Answer : The user can use the CLI command 'show gui interface' to check the current GUI interfaces. For example, the user can access the GUI through ge1, ge2, ge3, and ge4 from the WAN and LAN interfaces.
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How to forcibly log out a user using the CLI on the USG Flex model?
Question: How to forcibly log out a user using the CLI on the USG Flex model? Answer: If the user wants to forcibly log out an admin user using the CLI, they can use the command: cmd users force-logout ip x.x.x.x user admin. Example: To forcibly log out the admin user from the IP address 10.214.40.53. To use the CLI cmd…
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How do I check the system time on the USG Flex H via CLI?
Question : How do I check the system time on the USG Flex H via CLI? Answer : The user can use CLI commands to check the current time zone, date, and time. show clock status show clock date show clock time
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How to replace the existing firewall with a new USG FLEX H Series firewall?
Scope: A Nebula site currently operating with access points (AP), switches, and a USG FLEX, ATP, or NSG firewall. The customer intends to replace the existing firewall with a new USG FLEX H Series firewall. Objectives: Minimize downtime during the replacement process Reserve site-wide AP and switch monitoring historical…
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How to check the physical port number corresponding to a GE port on the USG Flex H via CLI
Question : How to check the physical port number corresponding to a GE port on the USG Flex H via CLI? Answer : The user can use the CLI command show state vrf main interface ethernet <ge number> to check the corresponding physical port number. For example, using show state vrf main interface ethernet ge3 will show that…
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Why can't I update the firmware via FTP on the USG Flex H model?
Question : Why can't I update the firmware via FTP on the USG Flex H model? Answer : The possible reason is that the system is experiencing insufficient memory (as shown in the warning message below). 552-Insufficient memory for firmware upgrade!! 552 Please reboot the device first, then perform the firmware upgrade.…
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Why can't a login account with the user type login to the Web GUI of the USG Flex H series model?
Question : Why can't a login account with the user type log in to the Web GUI of the USG Flex H series model? Answer : Starting from firmware version uOS 1.32, if an account that does not belong to the Local Administrator attempts to log in to the Web-GUI page, access will be denied, as shown below: Therefore, starting…