dsize rule option is used to test a packet's payload size. This option can be specified to look for a packet size that is less than, greater than, equal to, not equal to, less than or equal to, or greater than or equal to a specified integer value. This rule option can also be used to check that a payload size is between a range of numbers, using the
<> range operator for an exclusive range check or the
<=> for an inclusive one.
dsize number range is 0-65535.
Single value comparison: