flow-mask(1)

1FLOW-MASK(1)                                                      FLOW-MASK(1)
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NAME

6       flow-mask - Apply tags to flow files.
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SYNOPSIS

9       flow-mask  [ -hk ]  [ -b big|little ]  [ -C comment ]  [ -d debug_level
10       ]  [ -m mask_fname ]  [ -M active_def... ]
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DESCRIPTION

13       The flow-mask utility is used to modify the source and destination mask
14       length's in flow records.
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OPTIONS

17       -b big|little
18              Byte order of output.
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20       -C Comment
21              Add a comment.
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23       -d debug_level
24              Enable debugging.
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26       -h     Display help.
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28       -k     Keep time from input.
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30       -m mask_fname
31              Load masks from mask_name. Defaults to /etc/flow-tools/cfg/mask
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33       -M mask_def
34              Use active_def as the active tag definition(s).
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36       The  configuration  file  is  a collection of definitions. A definition
37       lists a sequence of prefixes and the mask length to replace the  match‐
38       ing  prefix  with.   Lines  begining with # are treated as comments and
39       ignored.
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41       mask-definition command             Description
42       ----------------------------------------------------------------------
43       mask-definition                     Begin mask-definition section
44                                           mask-definition foo
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46       prefix                              List the prefix to match on and the
47                                           replacement mask.
48                                           prefix 128.146/16 24
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EXAMPLES

52       #
53       #file: masks
54       #
55       mask-definition foo
56       # All networks in 128.146/16 are /24's.
57        prefix 128.146/16 24
58       # except for 128.146.214/24, which are /32's.
59        prefix 128.146.214/24 32
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61
62       flow-cat flows | flow-mask -mfoo -Fmasks | flow-print -f4
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FILES

65       Configuration files: Mask - /etc/flow-tools/cfg/mask.cfg.
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BUGS

68       None known.
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AUTHOR

71       Mark Fullmer <maf@splintered.net>
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