Diagnostics

Maintenance > Diagnostics > Collect
Label	Description
General Setting
Filename	This is the name of the most recently created diagnostic file.
Last modified	This is the date and time that the last diagnostic file was created. The format is yyyy-mm-dd hh:mm:ss.
Size	This is the size of the most recently created diagnostic file.
Upload the cmd file as the customized script	Select this to upload a customized shell script to display information about the Zyxel Device. Use a text editor to create the shell script files. They must use a “.zysh” filename extension. Specify the new name for the shell script file. Use up to 25 characters (including a-z, A-Z, 0-9 and ;‘~!@#$%^&()_+[]{}’,.=-). Spaces are allowed.
Copy the diagnostic file to USB storage (if ready)	Select this to have the Zyxel Device create an extra copy of the diagnostic file to a connected USB storage device.
Select Upload the cmd file as the customized script to display the following fields.
Shell Scripts
Filename	This displays the names of the customized shell script you created.
Upload Shell Script
File Path	Click Browse to find the location of the file you want to upload in this field. Click Upload to begin the upload process. This process may take a few minutes.
Apply	Click Apply to save your changes.
Collect Now	Click this to have the Zyxel Device create a new diagnostic file.

Maintenance > Diagnostics > Collect on AP
Label	Description
AP General Setting
Available APs	This text box lists the managed APs that are connected and available. Select the managed APs that you want the Zyxel Device to generate a diagnostic file containing their configuration, and click the right arrow button to add them.
Collected APs	This text box lists the managed APs that you allow the Zyxel Device to generate a diagnostic file containing their configuration. Select any managed APs that you want to prevent the Zyxel Device from generating a diagnostic file for them, and click the left arrow button to remove them.
Copy the diagnostic file to USB storage (if ready)	Select this to have the Zyxel Device create an extra copy of the diagnostic file to a connected USB storage device.
Apply	Click Apply to save your changes.
Collect Now	Click this to have the Zyxel Device create a new diagnostic file.

Maintenance > Diagnostics > Files
Label	Description
Diagnostic files	This lists the files of diagnostic information stored on the Zyxel Device.
Diagnostic files in USB storage	This lists the files of diagnostic information stored in a connected USB storage device.
Remove	Select files and click Remove to delete them from the Zyxel Device or the USB storage device. Use the [Shift] and/or [Ctrl] key to select multiple files. A pop-up window asks you to confirm that you want to delete.
Download	Click a file to select it and click Download to save it to your computer.
#	This column displays the number for each file entry. The total number of files that you can save depends on the file sizes and the available storage space.
File Name	This column displays the label that identifies the file.
Size	This column displays the size (in bytes) of a file.
Last Modified	This column displays the date and time that the individual files were saved.

Maintenance > Diagnostics > Packet Capture
Label	Description
Interfaces	Enabled interfaces (except for virtual interfaces) appear under Available Interfaces. Select interfaces for which to capture packets and click the right arrow button to move them to the Capture Interfaces list. Use the [Shift] and/or [Ctrl] key to select multiple objects.
IP Version	Select the version of IP for which to capture packets. Select any to capture packets for all IP versions.
Protocol Type	Select the protocol of traffic for which to capture packets. Select any to capture packets for all types of traffic.
Host IP	Select a host IP address object for which to capture packets. Select any to capture packets for all hosts. Select User Defined to be able to enter an IP address.
Host Port	This field is configurable when you set the IP Type to any, tcp, or udp. Specify the port number of traffic to capture.
Continuously capture and overwrite old ones	Select this to have the Zyxel Device keep capturing traffic and overwriting old packet capture entries when the available storage space runs out.
Save data to onboard storage only	Select this to have the Zyxel Device only store packet capture entries on the Zyxel Device. The available storage size is displayed as well. The Zyxel Device reserves some on board storage space as a buffer.
Save data to USB storage	Select this to have the Zyxel Device store packet capture entries only on a USB storage device connected to the Zyxel Device if the Zyxel Device allows this. Status: Unused - the connected USB storage device was manually unmounted by using the Remove Now button or for some reason the Zyxel Device cannot mount it. none - no USB storage device is connected. service deactivated - USB storage feature is disabled (in Configuration > System > USB Storage), so the Zyxel Device cannot use a connected USB device to store system logs and other diagnostic information. available - you can have the Zyxel Device use the USB storage device. The available storage capacity also displays. The Zyxel Device reserves some USB storage space as a buffer.
Captured Packet Files	When saving packet captures only to the Zyxel Device’s on board storage, specify a maximum limit in megabytes for the total combined size of all the capture files on the Zyxel Device. When saving packet captures to a connected USB storage device, specify a maximum limit in megabytes for each capture file. If you have existing capture files and have not selected the Continuously capture and overwrite old ones option, you may need to set this size larger or delete existing capture files. The valid range depends on the available on board/USB storage size. The Zyxel Device stops the capture and generates the capture file when either the file reaches this size or the time period specified in the Duration field expires.
Split threshold	Specify a maximum size limit in megabytes for individual packet capture files. After a packet capture file reaches this size, the Zyxel Device starts another packet capture file.
Duration	Set a time limit in seconds for the capture. The Zyxel Device stops the capture and generates the capture file when either this period of time has passed or the file reaches the size specified in the File Size field. 0 means there is no time limit.
File Suffix	Specify text to add to the end of the file name (before the dot and filename extension) to help you identify the packet capture files. Modifying the file suffix also avoids making new capture files that overwrite existing files of the same name. The file name format is “interface name-file suffix.cap”, for example “vlan2-packet-capture.cap”.
Number Of Bytes To Capture (Per Packet)	Specify the maximum number of bytes to capture per packet. The Zyxel Device automatically truncates packets that exceed this size. As a result, when you view the packet capture files in a packet analyzer, the actual size of the packets may be larger than the size of captured packets.
Save data to ftp server (available: xx MB)	Select this to have the Zyxel Device store packet capture entries on the defined FTP site. The available storage size is displayed as well.
Server Address	Type the IP address of the FTP server.
Server Port	Type the port this server uses for FTP traffic. The default FTP port is 21.
Name	Type the login username to access the FTP server.
Password	Type the associated login password to access the FTP server.
Capture	Click this button to have the Zyxel Device capture packets according to the settings configured in this screen. You can configure the Zyxel Device while a packet capture is in progress although you cannot modify the packet capture settings. The Zyxel Device’s throughput or performance may be affected while a packet capture is in progress. After the Zyxel Device finishes the capture it saves a separate capture file for each selected interface. The total number of packet capture files that you can save depends on the file sizes and the available flash storage space. Once the flash storage space is full, adding more packet captures will fail.
Stop	Click this button to stop a currently running packet capture and generate a separate capture file for each selected interface.
Reset	Click this button to return the screen to its last-saved settings.

Maintenance > Diagnostics > Packet Capture > Files
Label	Description
Remove	Select files and click Remove to delete them from the Zyxel Device or the connected USB storage device. Use the [Shift] and/or [Ctrl] key to select multiple files. A pop-up window asks you to confirm that you want to delete.
Download	Click a file to select it and click Download to save it to your computer.
#	This column displays the number for each packet capture file entry. The total number of packet capture files that you can save depends on the file sizes and the available flash storage space.
File Name	This column displays the label that identifies the file. The file name format is interface name-file suffix.cap.
Size	This column displays the size (in bytes) of a configuration file.
Last Modified	This column displays the date and time that the individual files were saved.

Maintenance > Diagnostics > CPU / Memory Status
Label	Description
CPU Status This table displays the applications that use the most Zyxel Device CPU processing.
CPUn Usage	CPU usage shows how much processing power the Zyxel Device is using. This field displays the current percentage usage of a CPU (where n is the number of the CPU) as a percentage of total processing power.
Network Traffic	This field displays the current percentage of network traffic through the Zyxel Device.
#	This field is a sequential value, and it is not associated with any entry.
CPU	This field displays the current CPU utilization percentage for each application used on the Zyxel Device.
Application	This field displays the name of the application consuming the related processing power on the Zyxel Device.
Memory	This field displays the current DRAM memory utilization percentage for each application used on the Zyxel Device.
Time	This field displays each application’s running time in hours - minutes - seconds.
Memory Status This table displays the applications that use the most Zyxel Device DRAM memory.
Memory Usage	Memory usage shows how much DRAM memory the Zyxel Device is using. This field displays the current percentage of memory utilization.
#	This field is a sequential value, and it is not associated with any entry.
Memory	This field displays the current DRAM memory utilization percentage for each application used on the Zyxel Device.
Application	This field displays the name of the application consuming the related memory on the Zyxel Device.
CPU	This field displays the current CPU utilization percentage for each application used on the Zyxel Device.
Time	This field displays each application’s running time.
Refresh	Click this to update the information in this screen.

Maintenance > Diagnostics > System Log
Label	Description
Remove	Select files and click Remove to delete them from the Zyxel Device. Use the [Shift] and/or [Ctrl] key to select multiple files. A pop-up window asks you to confirm that you want to delete.
Download	Click a file to select it and click Download to save it to your computer.
#	This column displays the number for each file entry. The total number of files that you can save depends on the file sizes and the available storage space.
File Name	This column displays the label that identifies the file.
Size	This column displays the size (in bytes) of a file.
Last Modified	This column displays the date and time that the individual files were saved.

Maintenance > Diagnostics > Remote Assistance
Label	Description
General Setting
Enable Remote Assistance	Select this to enable an external person, such as customer support to access the Zyxel Device from a network outside the Zyxel Device local network for troubleshooting.
Remote Settings	Select Use Random Settings to access the Zyxel Device remotely by using a randomly generated user name and password pair. Select Use Manual Settings to access the Zyxel Device remotely by using a previously configured specific user account.
Generate	This button is displayed when you select Use Random Settings in the Remote Settings field. Click this button to generate a random user name and password pair.
User Name	Select a previously created user/group object that identifies who can have external access to the Zyxel Device for troubleshooting.
Password	Type a password for the selected user/group to allow external access.
SSH Port	This field displays the SSH port number for external access. It should be the same port number as the one configured in System > SSH.
HTTPS Port	This field displays the HTTPS port number for external access. It should be the same port number as the one configured in System > WWW > Service Control.
IP Address1	Enter the public IP address of the external user that is allowed to access the Zyxel Device remotely.
IP Address2	Enter the public IP address of the external user that is allowed to access the Zyxel Device remotely.
Schedule
Name	This field displays the name of the schedule for allowed external access. The schedule must be first configured in Object > Schedule.
Start Date	This field displays the date on which the schedule begins.
Start Time	This field displays the time at which the schedule begins.
Stop Date	This field displays the date on which the schedule ends.
Stop Time	This field displays the time at which the schedule ends.
Apply	Click Apply to save your changes back to the Zyxel Device.
Reset	Click Reset to return the screen to its last-saved settings.

Maintenance > Diagnostics > Network Tool
Label	Description
Network Tool	Select a network tool: • Select NSLOOKUP IPv4 or NSLOOKUP IPv6 to perform name server lookup for querying the Domain Name System (DNS) to get the domain name or IP address mapping. • Select PING IPv4 or PING IPv6 to ping the IP address that you entered. • Select TRACEROUTE IPv4 or TRACEROUTE IPv6 to run the traceroute function. This determines the path a packet takes to the specified computer. • Select Test Email Server to test access to an SMTP email server.
Domain Name or IP Address	Type the IP address that you want to use to for the selected network tool.
Advance Click this to display the following fields.
Query Server	Enter the IP address of a server to which the Zyxel Device sends queries for NSLOOKUP.
Interface	Select the interface through which the Zyxel Device sends queries for PING or TRACEROUTE.
Extension Option	Enter the extended option if you want to use an extended ping or traceroute command. For example, enter “-c count” (where count is the number of ping requests) to set how many times the Zyxel Device pings the destination IP address, or enter “-w waittime” (where waittime is a time period in seconds) to set how long the Zyxel Device waits for a response to a probe before running another traceroute.
The following fields display when you select Test Email Server in Network Tool.
Mail Server	Type the name or IP address of the outgoing SMTP server.
Mail Subject	Type the subject line for the outgoing e-mail. • Select Append system name to add the Zyxel Device system name to the subject. • Select Append date time to add the Zyxel Device date and time to the subject.
Mail Server Port	Enter the same port number here as is on the mail server for mail traffic.
TLS Security	Select this option if the mail server uses Transport Layer Security (TLS) for encrypted communications between the mail server and the Zyxel Device.
STARTTLS	Select this option if the mail server uses SSL or TLS for encrypted communications between the mail server and the Zyxel Device.
Authenticate Server	Select this if the Zyxel Device authenticates the mail server in the TLS handshake.
Mail From	Type the e-mail address from which the outgoing e-mail is delivered. This address is used in replies.
Mail To	Type the e-mail address to which the outgoing e-mail is delivered.
SMTP Authentication	Select this check box if it is necessary to provide a user name and password to the SMTP server.
User Name	This box is effective when you select the SMTP Authentication check box. Type the user name to provide to the SMTP server when the log is e-mailed.
Password	This box is effective when you select the SMTP Authentication check box. Type the password to provide to the SMTP server when the log is e-mailed.
Retype to Confirm	Retype your new password for confirmation.
Test	Click this button to start the test.
Stop	Click this button to stop the test.
Reset	Click this button to return the screen to its last-saved settings.

Maintenance > Diagnostics > Routing Traces
Label	Description
IP Address	You can trace traffic through the Zyxel Device from a specific source-to-destination stream or just from/to a specific host (source or destination).
Source	Enter the source IP address of traffic that you want to trace.
Port	Enter the source port number of traffic that you want to trace.
Destination	Enter the destination IP address of traffic that you want to trace.
Port	Enter the destination port number of traffic that you want to trace.
Host	Enter the IP address of a specific source or destination host whose traffic you want to trace.
Port	Enter the port number for particular source traffic on the host that you want to trace.
Protocol	Select the protocol of traffic that you want to trace. any means any protocol.
Interval	Enter a time interval in seconds for renewing a route trace. The default time interval is 5 seconds.
Capture	Click this button to have the Zyxel Device capture frames according to the settings configured in this screen. You can configure the Zyxel Device while a frame capture is in progress although you cannot modify the frame capture settings.
Flush Data	Click this to clear all data on the screen.
Session	This field displays established sessions that passed through the Zyxel Device which matched the capture criteria.
ID	This field displays the packet ID for each active session.
Protocol	This field displays the protocol used in each active session.
from VPN ID	This field displays the tagged VLAN ID in ingress packets coming into the Zyxel Device.
to VPN ID	This field displays the tagged VLAN ID in egress packets going out from the Zyxel Device.
Incoming Interface	This is the source interface of packets to which this active session applies.
Message	This field displays traceroute information.

Maintenance > Diagnostics > Wireless Frame Capture > Capture
Label	Description
MON Mode APs
Configure AP to MON Mode	Click this to go the Configuration > Wireless > AP Management screen, where you can set one or more APs to monitor mode.
Available MON Mode APs	This column displays which APs on your wireless network are currently configured for monitor mode. Use the arrow buttons to move APs off this list and onto the Captured MON Mode APs list.
Capture MON Mode APs	This column displays the monitor-mode configured APs selected to for wireless frame capture.
Misc Setting
File Size	Specify a maximum size limit in kilobytes for the total combined size of all the capture files on the Zyxel Device, including any existing capture files and any new capture files you generate. If you have existing capture files you may need to set this size larger or delete existing capture files. The valid range is 1 to 50000. The Zyxel Device stops the capture and generates the capture file when either the file reaches this size.
File Prefix	Specify text to add to the front of the file name in order to help you identify frame capture files. You can modify the prefix to also create new frame capture files each time you perform a frame capture operation. Doing this does no overwrite existing frame capture files. The file format is: [file prefix].cap. For example, “monitor.cap”.
Capture	Click this button to have the Zyxel Device capture frames according to the settings configured in this screen. You can configure the Zyxel Device while a frame capture is in progress although you cannot modify the frame capture settings. The Zyxel Device’s throughput or performance may be affected while a frame capture is in progress. After the Zyxel Device finishes the capture it saves a combined capture file for all APs. The total number of frame capture files that you can save depends on the file sizes and the available flash storage space. Once the flash storage space is full, adding more frame captures will fail.
Stop	Click this button to stop a currently running frame capture and generate a combined capture file for all APs.
Reset	Click this button to return the screen to its last-saved settings.