ZyXEL ZyWALL USG 2000 User Guide - Page 861

Chapter 53 Diagnostics The following table describes the labels in this screen. Table 253 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 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. File Size Specify a maximum size limit in kilobytes for the total combined size of all the capture files on the ZyWALL, including any existing capture files and any new capture files you generate. Note: If you have existing capture files you may need to set this size larger or delete existing capture files. Duration File Suffix 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. 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. 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. ZyWALL USG 2000 User's Guide 861