Chapter 27 Diagnostics
USG FLEX H Series User’s Guide
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The following table describes the labels in this screen.
27.3.1 The Packet Capture Edit Screen
Use this screen to capture network traffic going through the Zyxel Device’s interfaces. Studying these
packet captures may help you identify network problems. Click Maintenance > Diagnostics > Packet
Capture > Edit to open the packet capture screen.
Note: New capture files overwrite existing files of the same name. Change the File Suffix field’s
setting to avoid this.
Table 204 Maintenance > Diagnostics > Packet Capture
LABEL DESCRIPTION
Edit Click this to configure packet capture settings.
Interface This field displays the interface for which to capture packets.
Protocol This field displays the protocol of traffic for which to capture packets.
Host this field displays the host IP address object for which to capture packets.
Host Port This field displays the port number of traffic to capture.
File/Split Size (MB) This field displays the maximum size limit in megabytes for individual packet capture files.
Storage This field displays where the packet capture entry is saved.
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.
Remove Select files and click Remove to delete them from the Zyxel Device or the connected USB
storage device.
Download Click a file to select it and click Download to save it to your computer.
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.
Modified Time This column displays the date and time that the individual files were saved.
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