### linux version
Usage: ./sl2 <target> <clones> [-f] [-c] [-d seconds] [-p packets] [-s packetsize] [-maxs packetsize] [-a srcaddr] [-l lowport] [-h highport] [-incports] [-sleep ms] [-syn[ack]]
    Target      - the target we are trying to attack.
    Clones      - number of packets to send at once (use -f for more than 6).
    -f          - force usage of more than 6 clones.
    -c          - class C flooding.
    -d seconds  - time to flood in seconds (default 600, use 0 for no timeout).
    -p packets  - packets to send for each clone (if used with -d is ignored).
-s size     - packet size (default 40, use 0 for random packets).
    -maxs size  - maximum size for random packets.
    -a srcaddr  - the spoofed source address (random if not specified).
    -l lowport  - start port (1024 if not specified).
    -h highport - end port (65535 if not specified).
    -incports   - choose ports incremental (random if not specified).
    -sleep ms   - delay between packets in miliseconds (0=no delay by default).
    -syn        - use SYN instead ACK.
    -synack     - use SYN|ACK.