When did Internet Protocol version 4 begin operation on ARPANET?
Internet Protocol version 4 began its operation on ARPANET in 1983. This early network served as the direct predecessor to what we now call the Internet.
Questions about IP address
Short answers, pulled from the story.
What is the bit size of an IPv6 address compared to IPv4?
An IPv6 address expands to one hundred twenty-eight bits while an IPv4 address measures exactly thirty-two bits. This massive expansion provides roughly three hundred forty undecillion possible combinations compared to approximately forty-three billion unique identifiers for IPv4.
Who manages the global IP address space and regional registries?
The Internet Assigned Numbers Authority manages the global IP address space alongside five regional Internet registries. IANA assigns blocks of addresses to these regional bodies responsible for distribution within their specific geographic areas.
When was Classless Inter-Domain Routing introduced to replace classful architecture?
Classless Inter-Domain Routing replaced the old class system in 1993 using variable-length subnet masking. CIDR notation follows a slash and decimal number indicating how many bits serve as the routing prefix.
Did the Supreme Court of Canada rule that IP addresses are private information in March 2024?
In March 2024, the Supreme Court of Canada ruled that IP addresses constitute protected private information under the Canadian Charter of Rights and Freedoms. Police searches now require a warrant to obtain these digital identifiers from service providers.