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networks - network name information
The file /etc/networks is a plain ASCII file that describes known DARPA
networks and symbolic names for these networks. Each line represents a
network and has the following structure:
name number aliases ...
where the fields are delimited by spaces or tabs. Empty lines are
ignored. If a line contains a hash mark (#), the hash mark and the
remaining part of the line are ignored.
The field descriptions are:
name The symbolic name for the network.
number The official number for this network in dotted-decimal notation.
The trailing ".0" may be omitted.
Optional aliases for the network.
This file is read by route or netstat utilities. Only Class A, B or C
networks are supported, partitioned networks (i.e. network/26 or
network/28) are not supported by this facility.
The networks definition file.
getnetbyaddr(3), getnetbyname(3), getnetent(3), route(8), netstat(8)