1# 2# CDDL HEADER START 3# 4# The contents of this file are subject to the terms of the 5# Common Development and Distribution License (the "License"). 6# You may not use this file except in compliance with the License. 7# 8# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9# or http://www.opensolaris.org/os/licensing. 10# See the License for the specific language governing permissions 11# and limitations under the License. 12# 13# When distributing Covered Code, include this CDDL HEADER in each 14# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15# If applicable, add the following below this CDDL HEADER, with the 16# fields enclosed by brackets "[]" replaced with your own identifying 17# information: Portions Copyright [yyyy] [name of copyright owner] 18# 19# CDDL HEADER END 20# 21 22# 23# Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24# Use is subject to license terms. 25# 26#ident "%Z%%M% %I% %E% SMI" 27# 28 29# 30# This file contains tunable parameters for dhcpagent(1M). 31# 32 33# All parameters can be tuned for a specific interface by prepending 34# the interface name to the parameter name. For example, to make 35# RELEASE_ON_SIGTERM happen on all interfaces except hme0, specify: 36# 37# hme0.RELEASE_ON_SIGTERM=no 38# RELEASE_ON_SIGTERM=yes 39# 40# An interface name alone specifies IPv4 DHCP. For DHCPv6, append ".v6". 41# Some examples: 42# 43# hme0.RELEASE_ON_SIGTERM=no specify hme0 v4 behavior 44# hme0.v6.RELEASE_ON_SIGTERM=no specify hme0 v6 behavior 45# RELEASE_ON_SIGTERM=no match all v4 interfaces 46# .v6.RELEASE_ON_SIGTERM=no match all v6 interfaces 47 48# By default, when the DHCP agent is sent a SIGTERM (typically when 49# the system is shut down), all managed addresses are dropped rather 50# than released. Dropping an address does not notify the DHCP server 51# that the address is no longer in use, leaving it possibly available 52# for subsequent use by the same client. If DHCP is later restarted 53# on the interface, the client will ask the server if it can continue 54# to use the address. If the server either grants the request, or 55# does not answer (and the lease has not yet expired), then the client 56# will use the original address. 57# 58# By uncommenting the following parameter-value pairs, all managed 59# interfaces are released on SIGTERM instead. In that case, the DHCP 60# server is notified that the address is available for use. Further, 61# if DHCP is later restarted on the interface, the client will not 62# request its previous address from the server, nor will it attempt to 63# reuse the previous lease. This behavior is often preferred for 64# roaming systems. 65# 66# RELEASE_ON_SIGTERM=yes 67# .v6.RELEASE_ON_SIGTERM=yes 68 69# By default, the DHCP agent waits 3 seconds to collect OFFER 70# responses to a DISCOVER. If it receives no OFFERs in this time, it 71# then waits for another 3 seconds, and so forth. To change this 72# behavior, set and uncomment the following parameter-value pair. 73# Note: this does not control the retransmission strategy for 74# DISCOVERs, which is formally specified in RFC 2131. This parameter 75# is specified in seconds. 76# 77# OFFER_WAIT= 78 79# By default, the DHCP agent does not send out a client identifier 80# (and hence, the chaddr field is used by the DHCP server as the 81# client identifier.) To make the DHCP agent send a client 82# identifier, set and uncomment the following parameter-value pair. 83# Note that by default this is treated as an NVT ASCII string. To 84# specify a binary value, prepend "0x" to a sequence of hexadecimal 85# digits (for example, the value 0xAABBCC11 would set the client 86# identifier to the 4-byte binary sequence 0xAA 0xBB 0xCC 0x11). 87# 88# CLIENT_ID= 89 90# By default, the DHCP agent will try to request the hostname currently 91# associated with the interface performing DHCP. If this option is 92# enabled, the agent will attempt to find a host name in /etc/hostname.<if>, 93# which must contain a line of the form 94# 95# inet name 96# 97# where "name" is a single RFC 1101-compliant token. If found, the token 98# will be used to request that host name from the DHCP server. To prevent 99# this, uncomment the following line. 100# 101# REQUEST_HOSTNAME=no 102 103# By default, a parameter request list requesting a subnet mask (1), 104# router (3), DNS server (6), hostname (12), DNS domain (15), broadcast 105# address (28), and encapsulated vendor options (43), is sent to the DHCP 106# server when the DHCP agent sends requests. However, if desired, this 107# can be changed by altering the following parameter-value pair. The 108# numbers correspond to the values defined in the IANA bootp-dhcp-parameters 109# registry at the time of this writing. 110# 111PARAM_REQUEST_LIST=1,3,6,12,15,28,43 112 113# The default DHCPv6 parameter request list has preference (7), unicast (12), 114# DNS addresses (23), DNS search list (24), NIS addresses (27), and 115# NIS domain (29). This may be changed by altering the following parameter- 116# value pair. The numbers correspond to the values defined in the IANA 117# dhcpv6-parameters registry at the time of this writing. 118.v6.PARAM_REQUEST_LIST=7,12,23,24,27,29 119