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║   A filter is made up of up to 5 match criteria.  These criteria    ║
║   are ANDed together within a single filter to determine the        ║
║   result of the filter.  If any match criteria fails, the filter    ║
║   will not accept the packet.  When editting a filter, use the      ║
║   cursor up and cursor down keys to select the current match        ║
║   criteria.  The following function keys are defined for editting   ║
║   match criteria within a filter:                                   ║
║                                                                     ║
║   Key     Description                                               ║
║   ---     -----------                                               ║
║   F1      Displays this help screen                                 ║
║   F2      Add a new match criteria to the current filter            ║
║   F3      Modify the currently selected match criteria              ║
║   F4      Delete the currently selected match criteria              ║
║   F5      Negate the result of the currently selected               ║
║           match criteria                                            ║
║   F10     Save the current filter.  This function saves all         ║
║           modifications to the current filter and returns you       ║
║           back to either the Capture Filter or Display Filter       ║
║           screen                                                    ║
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