[ih] The classful <net>.<host> IPv4 address format

[Michael Kjörling]

Every once in a while I see people being surprised that IPv4 addresses
can be expressed in formats other than dotted-decimal-quad; more
specifically, in classful-style <net>.<host> (where net and host can
add up to less than four octets) or even single-large-integer format.

I am _almost_ certain that I have seen an early IP or TCP RFC which
actually describes this representation, but have been unable to locate
that.

Can anyone point me at an authoritative source where the
dotted-not-quad textual IPv4 address representation format is defined
or at least described? Thanks!

-- 
Michael Kjörling
🔗 https://michael.kjorling.se