DNS encoding of network names and other types

This RFC proposes two extensions to the Domain Name System:-A specific method for entering and retrieving RRs which map between network names and numbers.-Ideas for a general method for describing mappings between arbitrary identifiers and numbers.The method for mapping between network names and addresses is a proposed standard, the ideas for a general method are experimental.This RFC assumes that the reader is familiar with the DNS [RFC 1034, RFC 1035] and its use.The data shown is for pedagogical use and does not necessarily reflect the real Internet.Distribution of this memo is unlimited.-A desire to create a method which would be sufficiently general to set a good precedent for future mappings, for example, between TCP-port names and numbers, Mockapetris