SCALANCE W1750D UI
Configuration Manual, 02/2018, C79000-G8976-C451-02
103
IPv6 is the latest version of Internet Protocol (IP) that is suitable for large-scale IP networks.
IPv6 supports a 128-bit address to allow 2128, or approximately 3.4×1038 addresses while
IPv4 supports only 232 addresses.
The IP address of the IPv6 host is always represented as eight groups of four hexadecimal
digits separated by colons. For example
2001:0db8:0a0b:12f0:0000:0000:0000:0001.
However, the IPv6 notation can be abbreviated to compress one or more groups of zeroes or
to compress leading or trailing zeroes.
The following examples show various representations of the address
2001:0db8:0a0b:12f0:0000:0000:0000:0001
● Valid format—
2001:db8:a0b:12f0::0:0:1
● Invalid format—
2001:db8:a0b:12f0::::0:1. The “::” sign appears only once in an
address.
● With leading zeros omitted—
2001:db8:a0b:12f0:0:0:0:1
● Switching from upper to lower case—
2001:DB8:A0B:12f0:0:0:0:1
IPv6 uses a "/" notation which describes the number of bits in netmask as in IPv4.
2001:db8::1/128 – Single Host 2001:db8::/64 – Network
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