Chapter 46 Diagnostics

The following table describes the labels in this screen.

Table 222 Maintenance > Diagnostics > Packet Capture > Files

LABEL

DESCRIPTION

Remove

Select files and click Remove to delete them from the ZyWALL 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

This column displays the date and time that the individual files were saved.

Modified

 

 

 

46.3.2 Example of Viewing a Packet Capture File

Here is an example of a packet capture file viewed in the Wireshark packet analyzer. Notice that the size of frame 15 on the wire is 1514 bytes while the captured size is only 1500 bytes. The ZyWALL truncated the frame because the capture screen’s Number Of Bytes To Capture (Per Packet) field was set to 1500 bytes.

 

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ZyWALL USG 20/20W User’s Guide