π¨βπ» start new course on Practical Ethical Hacking. Lesson 1: learn about IP addresses
Types of IP addresses, why we use them, protocols, how they were designed.
TIL IPv4 was created in 1981 and back then, no one imagined that we would need or use up all of 4.2 billion IP address spaces!
TIL IPv4 was created in 1981 and back then, no one imagined that we would need or use up all of 4.2 billion IP address spaces!
Carl Poppa πΈ
Author
This illustrates it quite well: https://66.media.tumblr.com/02a533c1d55ca0ba83e0176168df06ec/tumblrinlineo4m1taQugo1u4ytoo_1280.jpg
Carl Poppa πΈ
Author
I learned that we came up with IPv6 but it's hardly used, and in the end we came up with private IP addresses to deal with the public IP shortage. For a household or small business, you have 254 hosts per network. Most households have only about 20 gadgets? Pretty generous. Large corps would have about 16k private IPs per network.
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