1.\" $OpenBSD: dhcpleased.conf.5,v 1.8 2021/09/21 17:23:24 florian Exp $ 2.\" 3.\" Copyright (c) 2018, 2021 Florian Obser <florian@openbsd.org> 4.\" Copyright (c) 2005 Esben Norby <norby@openbsd.org> 5.\" Copyright (c) 2004 Claudio Jeker <claudio@openbsd.org> 6.\" Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org> 7.\" Copyright (c) 2002 Daniel Hartmeier <dhartmei@openbsd.org> 8.\" 9.\" Permission to use, copy, modify, and distribute this software for any 10.\" purpose with or without fee is hereby granted, provided that the above 11.\" copyright notice and this permission notice appear in all copies. 12.\" 13.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 14.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 15.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 16.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 17.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 18.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 19.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 20.\" 21.Dd $Mdocdate: September 21 2021 $ 22.Dt DHCPLEASED.CONF 5 23.Os 24.Sh NAME 25.Nm dhcpleased.conf 26.Nd dynamic host configuration protocol client daemon configuration file 27.Sh DESCRIPTION 28The 29.Xr dhcpleased 8 30daemon is a dynamic host configuration protocol client daemon. 31.Pp 32The 33.Nm 34config file is divided into the following main sections: 35.Bl -tag -width xxxx 36.It Sy Macros 37User-defined variables may be defined and used later, simplifying the 38configuration file. 39.It Sy Interfaces 40If an interface requires non-default options, they can be defined in 41this section. 42Most configurations do not require this. 43.El 44.Sh MACROS 45Macros can be defined that will later be expanded in context. 46Macro names must start with a letter, digit, or underscore, 47and may contain any of those characters. 48Macro names may not be reserved words (for example, 49.Ic interface ) 50Macros are not expanded inside quotes. 51.Sh INTERFACES 52A list of interfaces to overwrite defaults: 53.Bd -unfilled -offset indent 54.Ic interface Ar name Brq Op Ar option ... 55.Ed 56.Pp 57.Ic interface 58options are as follows: 59.Bl -tag -width Ds 60.It Ic ignore dns 61Ignore nameservers from leases on this interface. 62The default is to not ignore nameservers. 63.It Ic ignore routes 64Ignore routes from leases on this interface. 65The default is to not ignore routes. 66.It Ic ignore Ar server-ip 67Ignore leases from 68.Ar server-ip . 69This option can be listed multiple times. 70The default is to not ignore servers. 71.It Ic send client id Ar client-id 72Send the DHCP client identifier option with a value of 73.Ar client-id . 74If 75.Ar client-id 76consists of a series of octets of two-digit hexadecimal numbers separated by 77colons, the first octet is used as the type and the rest as value. 78The MAC address 00:53:FF:AA:BB:CC would be configured as: 79.Bd -literal -offset indent 80send client id "01:00:53:FF:AA:BB:CC" 81.Ed 82.Pp 83Otherwise the string 84.Ar client-id 85is sent verbatim. 86The default is to send the interface's MAC address as client identifier. 87.Pp 88When 89.Ar client-id 90is not a hardware address it is supposed to be sent as hardware type 0 but 91the majority of DHCP clients and servers do not implement this and neither 92does 93.Nm . 94If a server is encountered that requires this, a 0 byte can be encoded as \e0. 95The client identifier 96.Dq foobar 97with hardware type 0 would be configured as: 98.Bd -literal -offset indent 99send client id "\e0foobar" 100.Ed 101.It Ic send vendor class id Ar vendor-class-id 102Send the DHCP vendor class identifier option with a value of 103.Ar vendor-class-id . 104The default is to not send a vendor class identifier. 105.El 106.Sh FILES 107.Bl -tag -width /etc/dhcpleased.conf -compact 108.It Pa /etc/dhcpleased.conf 109.Xr dhcpleased 8 110configuration file. 111.El 112.Sh SEE ALSO 113.Xr dhcpleasectl 8 , 114.Xr dhcpleased 8 115