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页码 454
7-25
Capture and Display Filters
Filter Examples
7
Filter Example, Template Combination
The 
Filter Design 
window in Figure 7-6 shows the capture filter with a logical com-
bination built in the 
Template Combination
 box. This filter collects all traffic to and 
from a single station that make use of the HTTP or FTP protocols. The two tem-
plates are combined with an OR statement to collect both types of protocols. The 
two templates are named HTTP_Activity_Station2 for the user-defined 
HTTP template and FTP_Activity_Station2
 
for the user-defined FTP tem-
plate. 
The conversation is specified without a second station and uses the -> indicator. 
Traffic is captured in the sending direction for a single station, regardless of the 
other station in the conversation. In the example, the station address has been 
defined as part of each custom filter template.
 
Figure 7-6.  Filter Design Window, Template Combination Example