encoding
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... or 39 characters total). This document specifies a more compact
representation of IPv6 addresses, which permits encoding in a mere 20
bytes.
...
...
This document specifies a new encoding, which can always represent
any IPv6 address in 20 octets ...
... The New Encoding Format ...
... all 2^128 different IPv6 addresses, so 20 characters would be needed
even with base 94 encoding. As there are just 94 ASCII characters
(excluding control characters ...
...
By encoding addresses in this form, it is less likely that a casual
observer will be able to immediately detect the binary form of the
...
