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flow-import(1) General Commands Manual flow-import(1)

NAME

flow-import — Import flows into flow-tools from other NetFlow packages.

SYNOPSIS

flow-import [-h] [-b big|little] [-d debug_level] [-f format] [-m mask_fields] [-V pdu_version] [-z z_level]

DESCRIPTION

The flow-import utility will convert data from cflowd and ASCII CSV files into flow-tools format.

OPTIONS

Byte order of output.
Enable debugging.
Export format. Supported formats are:



  0 cflowd


  2 ASCII CSV


  3 Cisco NFCollector
Display help.
Select fields for cflowd and ASCII formats. The mask_fields is built from a bitwise OR of the following:



    UNIX_SECS       0x0000000000000001LL


    UNIX_NSECS      0x0000000000000002LL


    SYSUPTIME       0x0000000000000004LL


    EXADDR          0x0000000000000008LL


    


    DFLOWS          0x0000000000000010LL


    DPKTS           0x0000000000000020LL


    DOCTETS         0x0000000000000040LL


    FIRST           0x0000000000000080LL


    


    LAST            0x0000000000000100LL


    ENGINE_TYPE     0x0000000000000200LL


    ENGINE_ID       0x0000000000000400LL


    


    SRCADDR         0x0000000000001000LL


    DSTADDR         0x0000000000002000LL


    SRC_PREFIX      0x0000000000004000LL


    DST_PREFIX      0x0000000000008000LL


    NEXTHOP         0x0000000000010000LL


    INPUT           0x0000000000020000LL


    OUTPUT          0x0000000000040000LL


    SRCPORT         0x0000000000080000LL


    


    DSTPORT         0x0000000000100000LL


    PROT            0x0000000000200000LL


    TOS             0x0000000000400000LL


    TCP_FLAGS       0x0000000000800000LL


    


    SRC_MASK        0x0000000001000000LL


    DST_MASK        0x0000000002000000LL


    SRC_AS          0x0000000004000000LL


    DST_AS          0x0000000008000000LL


    


    IN_ENCAPS       0x0000000010000000LL


    OUT_ENCAPS      0x0000000020000000LL


    PEER_NEXTHOP    0x0000000040000000LL


    ROUTER_SC       0x0000000080000000LL


    EXTRA_PKTS      0x0000000100000000LL


    MARKED_TOS      0x0000000200000000LL
The default value is all fields applicable to the pdu_version.
Use pdu_version format output.



    1    NetFlow version 1 (No sequence numbers, AS, or mask)


    5    NetFlow version 5


    6    NetFlow version 6 (5+ Encapsulation size)


    7    NetFlow version 7 (Catalyst switches)


    8.1  NetFlow AS Aggregation


    8.2  NetFlow Proto Port Aggregation


    8.3  NetFlow Source Prefix Aggregation


    8.4  NetFlow Destination Prefix Aggregation


    8.5  NetFlow Prefix Aggregation


    8.6  NetFlow Destination (Catalyst switches)


    8.7  NetFlow Source Destination (Catalyst switches)


    8.8  NetFlow Full Flow (Catalyst switches)


    8.9  NetFlow ToS AS Aggregation


    8.10 NetFlow ToS Proto Port Aggregation


    8.11 NetFlow ToS Source Prefix Aggregation


    8.12 NetFlow ToS Destination Prefix Aggregation


    8.13 NetFlow ToS Prefix Aggregation


    8.14 NetFlow ToS Prefix Port Aggregation


    1005 Flow-Tools tagged version 5
Configure compression level to z_level. 0 is disabled (no compression), 9 is highest compression.

EXAMPLES

Convert the cflowd file flows.cflowd to the flow-tools file flows. Store as Version 5 with compression level 5.


flow-import -V5 -z5 -f0 < flows.cflowd > flows

EXAMPLES

Convert the ASCII CSV data in flows.ascii to flow-tools format. The ASCII data must include all fields represented by 0xFF31EF in the order listed above. Store as Version 5 with no compression.


flow-import -z0 -f2 -m0xFF31EF < flows.ascii > flows

BUGS

The pcap format is a hack.

AUTHOR

Mark Fullmer maf@splintered.net

SEE ALSO

flow-tools(1)