The following table summarizes the major differences between IPv4 and IPv6:
|Address length||32 bits||128 bits|
|Address representation||4 decimal numbers from 0-255 separated by periods||8 groups of 4 hexadecimal digits separated by colons|
|Address types||unicast, multicast, broadcast||unicast, multicast, anycast|
|Packet header||20 bytes long||40 bytes long, but simpler than IPv4 header|
|Configuration||manual, DHCP||manual, DHCP, auto-configuration|
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