add iptables code to stop traffic before injection.
add iptables code to stop traffic before injection.

Illinois-tech-ITM/BSMP-2016-ISCSI-Packet-Injection,illinoistech-itm/pykkon,Illinois-tech-ITM/BSMP-2016-ISCSI-Packet-Injection,illinoistech-itm/pykkon,Illinois-tech-ITM/BSMP-2016-ISCSI-Packet-Injection,illinoistech-itm/pykkon