netmasks(4) Kernel Interfaces Manual netmasks(4)
NAME
netmasks - DHCP server database
DESCRIPTION
The netmasks file is employed by joind, the DHCP server, to inform it about any networks having non-standard subnet masks. This file is
only needed on those platforms which don't provide a netmasks database, either as a text file or as an NIS map. Each network whose mask is
other than the standard A, B, or C mask should have an entry in this file. Each entry has two fields: the network and the mask. The net-
work may be written with or without zeros. See join.ipaddresses(4) for details.
This file also supports variable subnetting. If each subnetwork is further divided into subnetworks with a variable mask, the subnetworks
can also appear on the LHS.
FORMAT
Blank lines and lines beginning with "#" are ignored. Entries are separated from one another by newlines. Entries consist of two fields:
the network number (expressed as an IP address), and the network mask expressed as an IP address.
RELATED INFORMATION
Commands: joind(8), join.ipaddresses(4). delim off
netmasks(4)