ZyXEL Communications USG-300 - V2.20 ED 2, Руководство пользователя

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Chapter 53 Diagnostics
ZyWALL USG 300 User’s Guide
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Save data to
onboard storage
only Select this to have the ZyWALL only store packet capture entries
on the ZyWALL.
Save data to USB
storage Select this to have the ZyWALL store packet capture entries only
on a USB storage device connected to the ZyWALL.
Status:
Unused - the connected USB storage device was manually
unmounted by using the Remove Now button or for some reason
the ZyWALL cannot mount it.
none - no USB storage device is connected.
available - you can have the ZyWALL use the USB storage device.
The available storage capacity also displays.
Captured Packet
Files When saving packet captures only to the ZyWALL’s onboard
storage, specify a maximum limit in megabytes for the total
combined size of all the capture files on the ZyWALL.
When saving packet captures to a connected USB storage device,
specify a maximum limit in megabytes for each capture file.
Note: 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 is 1 to 10000. The ZyWALL 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
ZyWALL starts another packet capture file.
Duration Set a time limit in seconds for the capture. The ZyWALL 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
ZyWALL 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.
Table 266 Maintenance > Diagnostics > Packet Capture (continued)
LABEL DESCRIPTION