flow-mask 1 flow-mask Apply tags to flow files. flow-mask -hk -b big|little -C comment -d debug_level -m mask_fname -M active_def The flow-mask utility is used to modify the source and destination mask length's in flow records. -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 @localstatedir@/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 # #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 Configuration files: Mask - @localstatedir@/cfg/mask.cfg. None known. Mark Fullmer maf@splintered.net flow-tools(1)