nac_bypass_setup.sh v0.6.4 usage:
    -1 <eth>    network interface plugged into switch
    -2 <eth>    network interface plugged into victim machine
    -a          autonomous mode
    -c          start connection setup only
    -g <MAC>    set gateway MAC address (GWMAC) manually
    -t <MAC>    set target (printer or computer) MAC address (COMMAC) manually
    -T <IP>     set target (printer or computer) IP address (COMIP) manually
    -f <RANGE>  filter out all outbound connection except on this range (cautious mode, for Red Team)
    -s <IP>     set source IP address for communication with COMP. WARNING: IP address must exist, for supplicant ARP request to succeed
    -h          display this help
    -i          start initial setup only
    -r          reset all settings
    -R          enable port redirection for Responder.py
    -S          enable port redirection for OpenSSH and start the service