| Working with captured packets  | 
  | 
  | 
Value | You may enter an appropriate value in the Value text box. The Value  | 
  | will also indicate the type of value for the field name you have selected  | 
  | (like character string).  | 
Predefined values | Some of the protocol fields have predefined values available, much like  | 
  | enum's in C. If the selected protocol field has such values defined, you  | 
  | can choose one of them here.  | 
Range | XXX - add an explanation here!  | 
OK  | When you have built a satisfactory expression click OK and a filter  | 
  | string will be built for you.  | 
Cancel | You can leave the Add Expression... dialog box without any effect by  | 
  | clicking the Cancel  | 
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