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IPv4 is 32 bits wide, or about 4 billion IP addresses; while IPv6 is 128 bits wide, or about 3.4x10^38 IP addresses. The number of addresses between the two has a difference of 79x10^27 times bigger. It is calculated that the world's energy output combined could only support using 1/3rd of the available addresses in this address space.

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Q: Describe the size differences in IPv4 and IPv6 IP addresses?
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Differential between ipv4 and ipv6?

1. Describe the main features that differentiate IPv6 from IPv4


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IPV6 is less vulnerable to DNS Spoofing IPv4 addresses use 32 bit or 4 bytes for addressing IPv6 addresses use eight bit segments.


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In IPv4, the loopback address is 127.0.0.1. In IPv6 it is ::1.


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32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).32 bits (for IPv4), or 128 bits (for IPv6).


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IPv4 addresses are 4 bytes. IPv6 IP addresses are 16 bytes.


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