The Packet Capture Files Screen - ZyXEL Communications UAG4100 User Manual

Table 208 Maintenance > Diagnostics > Packet Capture (continued)
LABEL
File Suffix
Number Of Bytes To
Capture (Per Packet)
Capture
Stop
Reset

43.3.1 The Packet Capture Files Screen

Click Maintenance > Diagnostics > Packet Capture > Files to open the packet capture files
screen. This screen lists the files of packet captures stored on the UAG or a connected USB storage
device. You can download the files to your computer where you can study them using a packet
analyzer (also known as a network or protocol analyzer) such as Wireshark.
Figure 304 Maintenance > Diagnostics > Packet Capture > Files
Chapter 43 Diagnostics
DESCRIPTION
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".
Specify the maximum number of bytes to capture per packet. The UAG
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.
Click this button to have the UAG capture packets according to the settings
configured in this screen.
You can configure the UAG while a packet capture is in progress although you cannot
modify the packet capture settings.
The UAG's throughput or performance may be affected while a packet capture is in
progress.
After the UAG 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.
Click this button to stop a currently running packet capture and generate a separate
capture file for each selected interface.
Click this button to return the screen to its last-saved settings.
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