D-Link DFL-260E User Manual for DFL-260E - Page 82
Output File Naming Restrictions, Combining Filters, Compatibility with Wireshark
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2.5. The pcapdump Command Chapter 2. Management and Maintenance Output File Naming Restrictions The name of the file used for pcapdump output must comply with the following rules: • Excluding the filename extension, the name may not exceed 8 characters in length. • The filename extension cannot exceed 3 characters in length. • The filename and extension can only contain the characters A-Z, 0-9, "-" and "_". Combining Filters It is possible to use several of these filter expressions together in order to further refine the packets that are of interest. For example we might want to examine the packets going to a particular destination port at a particular destination IP address. Compatibility with Wireshark The open source tool Wireshark (formerly called Ethereal) is an extremely useful analysis tool for examining logs of captured packets. The industry standard .pcap file format used by pcapdump with its -write option means that it is compatible with Wireshark. For more complete information about this topic, see http://www.wireshark.org. 82
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