and
|
is the logical operator
or
Interpretation of logical expressions
Expressions are parsed according to the priority of the individual operators: the
&
operator is parsed before
|
. If multiple
conditions are connected by the same operator, the expression is parsed from left to right. If necessary, parentheses can
be used to determine the priority of conditions:
variable1 = value1 & (variable2 = value2 | variable3 = value3)
Variables
The following variables can be used in logical expressions defining packets:
any
All IP packets are logged (the condition is always met). It would be meaningless to combine the any option with other
condition(s).
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