RFC 3514:The Security Flag in the IPv4 Header
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host


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... 0x0 If the bit is set to 0, the packet has no evil intent. Hosts, network elements, etc., SHOULD assume that the packet is ...


... attackers are on the outside of the firewall. Therefore, hosts inside the firewall MUST NOT set the evil bit ...
... proxies SHOULD set the evil bit on their reply packets to the innocent client host. Some hosts ...
... client host. Some hosts scan other hosts in a fashion that can alert intrusion detection systems ...
... Some hosts scan other hosts in a fashion that can alert intrusion detection systems. If the scanning is part of a benign research ...


... speeds. As outlined earlier, host processing of evil packets is operating- system dependent; however, all hosts MUST react appropriately ...
... As outlined earlier, host processing of evil packets is operating- system dependent; however, all hosts MUST react appropriately according to their nature. ...


... DDoS packets. The second, an end-to-end option, is for packets intended to damage destination hosts. In either case, the option contains a 128-bit ...



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