ZyXEL UAG715 User Guide - Page 495

Chapter 42 Diagnostics Table 201 Maintenance > Diagnostics > Packet Capture (continued) LABEL DESCRIPTION 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. Continuously capture Select this to have the UAG keep capturing traffic and overwriting old packet capture and overwrite old ones entries when the available storage space runs out. Save data to onboard storage only Select this to have the UAG only store packet capture entries on the UAG. The available storage size is displayed as well. Save data to USB storage Note: The UAGL reserves some onboard storage space as a buffer. Select this to have the UAG store packet capture entries only on a USB storage device connected to the UAG. Status: Unused - the connected USB storage device was manually unmounted by using the Remove Now button or for some reason the UAG cannot mount it. none - no USB storage device is connected. available - you can have the UAG use the USB storage device. The available storage capacity also displays. service deactivated - the USB storage feature is disabled and the UAG cannot use a connected USB device to store the system log and other diagnostic information. Captured Packet Files Note: The UAG reserves some USB storage space as a buffer. When saving packet captures only to the UAG's onboard storage, specify a maximum limit in megabytes for the total combined size of all the capture files on the UAG. When saving packet captures to a connected USB storage device, specify a maximum limit in megabytes for each capture file. Split threshold Duration File Suffix Number Of Bytes To Capture (Per Packet) 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 depends on the available onboard/USB storage size. The UAG 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. Specify a maximum size limit in megabytes for individual packet capture files. After a packet capture file reaches this size, the UAG starts another packet capture file. Set a time limit in seconds for the capture. The UAG 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-packetcapture.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. UAG715 User's Guide 495