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>  Because UDP packets are also significantly high in volume, you can
  also define a UDP filter the same way you do a TCP filter. To work
  with UDP filters, select the <I
CLASS="EMPHASIS"
>Filters.../UDP...</I
>
   option. You can opt
  to display all UDP packets, no UDP packets, and define a
  custom UDP filter. Other than the first two options, the others are
  almost identical to the custom TCP filter options.
  Custom UDP filters can be defined, edited, and deleted as TCP
  filters. See the section on <A
HREF="filters.html#TCPFILTERS"
>TCP Filters</A
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  in this chapter.</P
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