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Internet FAQ

Internet Protocol (IP) IPV4 vs IPv6 IPV4 uses 32 bits, 4 8 bit numbers, 2^32 distinct IP addresses. Example 202.2.1.10. IPV6 uses 128 bits, 8 16 bit numbers, 2^128 distinct IP addresses. Actual number is slightly smaller since multiple ranges are reserved for special use or completely excluded from use. Example 3ffe:1900:4545:3:200:f8ff:fe21:67cf. Refs: webopedia article IPV6 wikipedia

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