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Man Pages


Manual Reference Pages  -  FLOW-MASK (1)

NAME

flow-mask - Apply tags to flow files.

CONTENTS

Synopsis

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 /usr/local/etc/flow-tools/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

FILES

Configuration files: Mask - /usr/local/etc/flow-tools/mask.cfg.

BUGS

None known.

AUTHOR

Mark Fullmer <maf@splintered.net>

SEE ALSO

flow-tools(1)

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FLOW-MASK (1) 26 Август 2010

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