This is the command flow-mask that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
flow-mask — Apply tags to flow files.
SYNOPSIS
flow-mask [-hk] [-b big|little] [-C comment] [-d debug_level] [-m mask_fname] [-M
active_def ...]
DESCRIPTION
The flow-mask utility is used to modify the source and destination mask length's in flow
records.
OPTIONS
-b big|little
Byte order of output.
-C Comment
Add a comment.
-d debug_level
Enable debugging.
-h Display help.
-k Keep time from input.
-m mask_fname
Load masks from mask_name. Defaults to /etc/flow-tools/cfg/mask
-M mask_def
Use active_def as the active tag definition(s).
The configuration file is a collection of definitions. A definition lists a sequence of
prefixes and the mask length to replace the matching prefix with. Lines begining with #
are treated as comments and ignored.
mask-definition command Description
----------------------------------------------------------------------
mask-definition Begin mask-definition section
mask-definition foo
prefix List the prefix to match on and the
replacement mask.
prefix 128.146/16 24
EXAMPLES
#
#file: masks
#
mask-definition foo
# All networks in 128.146/16 are /24's.
prefix 128.146/16 24
# except for 128.146.214/24, which are /32's.
prefix 128.146.214/24 32
flow-cat flows | flow-mask -mfoo -Fmasks | flow-print -f4
Use flow-mask online using onworks.net services