The Security Flag in the IPv4 Header

Tuesday, 1 April 2003, 11:36 AM EST

NOTE: This was an April Fool's joke :)

Firewalls, packet filters, intrusion detection systems, and the like often have difficulty distinguishing between packets that have malicious intent and those that are merely unusual. The problem is that making such determinations is hard. To solve this problem, we define a security flag, known as the "evil" bit, in the IPv4 header. Benign packets have this bit set to 0; those that are used for an attack will have the bit set to 1.

[ Read more ]




Spotlight

More than a third of employees would sell company data

35 percent of employees would sell information on company patents, financial records and customer credit card details if the price was right. This illustrates the growing importance for organizations to deploy data loss prevention strategies.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  
DON'T
MISS

Fri, Jul 31st
    COPYRIGHT 1998-2015 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //