How many bits is IPv6?
Understand the Problem
The question is asking for the number of bits that make up an IPv6 address. IPv6 addresses are designed to provide a vast amount of unique addresses in comparison to its predecessor, IPv4.
Answer
IPv6 addresses are 128 bits long.
IPv6 addresses are 128 bits long. An IPv6 address is represented as eight groups of four hexadecimal digits, with each group separated by a colon. Each hexadecimal digit represents four bits, so four digits represent 16 bits. With eight such groups, the total size of an IPv6 address is 128 bits (8 * 16 = 128).
Answer for screen readers
IPv6 addresses are 128 bits long. An IPv6 address is represented as eight groups of four hexadecimal digits, with each group separated by a colon. Each hexadecimal digit represents four bits, so four digits represent 16 bits. With eight such groups, the total size of an IPv6 address is 128 bits (8 * 16 = 128).
More Information
IPv6 was developed by the Internet Engineering Task Force (IETF) to address the long-anticipated problem of IPv4 address exhaustion. The large address space of IPv6 allows for 340 undecillion unique addresses, which is enough for the foreseeable future.
Sources
- IPv6 Addressing Architecture - IETF - tools.ietf.org
- IPv6 - Wikipedia - en.wikipedia.org
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