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 2009 Sun Microsystems, Inc. All rights reserved. 24 # Use is subject to license terms. 25 # 26 27 # 28 # This file contains tunable parameters for dhcpagent(1M). 29 # 30 31 # All parameters can be tuned for a specific interface by prepending 32 # the interface name to the parameter name. For example, to make 33 # VERIFIED_LEASE_ONLY happen on all interfaces except hme0, specify: 34 # 35 # hme0.VERIFIED_LEASE_ONLY=no 36 # VERIFIED_LEASE_ONLY=yes 37 # 38 # An interface name alone specifies IPv4 DHCP. For DHCPv6, append ".v6". 39 # Some examples: 40 # 41 # hme0.VERIFIED_LEASE_ONLY=no specify hme0 v4 behavior 42 # hme0.v6.VERIFIED_LEASE_ONLY=no specify hme0 v6 behavior 43 # VERIFIED_LEASE_ONLY=no match all v4 interfaces 44 # .v6.VERIFIED_LEASE_ONLY=no match all v6 interfaces 45 46 # By default, when the DHCP agent is sent a SIGTERM (typically when 47 # the system is shut down), all managed addresses are dropped rather 48 # than released. Dropping an address does not notify the DHCP server 49 # that the address is no longer in use, leaving it possibly available 50 # for subsequent use by the same client. If DHCP is later restarted 51 # on the interface, the client will ask the server if it can continue 52 # to use the address. If the server either grants the request, or 53 # does not answer (and the lease has not yet expired), then the client 54 # will use the original address. 55 # 56 # Similarly, when the system is suspended and then woken up or when 57 # the link status transitions from down to up, DHCP will ask the server 58 # to continue to use the managed address, in case the lease has changed. 59 # 60 # By uncommenting the following parameter-value pairs, all managed 61 # addresses are released on SIGTERM instead, and any that may have been 62 # saved but cannot be verified will not be used. When SIGTERM is 63 # received, the DHCP server is notified that the address is available 64 # for use, and the address will not be saved for a later restart. If 65 # DHCP receives SIGTHAW or a link-up event, DHCP will attempt to verify 66 # the previous lease, but if unable to do so, it will not attempt to 67 # use that lease. This behavior is often preferred for roaming systems. 68 # 69 # VERIFIED_LEASE_ONLY=yes 70 # .v6.VERIFIED_LEASE_ONLY=yes 71 72 # By default, the DHCP agent waits 3 seconds to collect OFFER 73 # responses to a DISCOVER. If it receives no OFFERs in this time, it 74 # then waits for another 3 seconds, and so forth. To change this 75 # behavior, set and uncomment the following parameter-value pair. 76 # Note: this does not control the retransmission strategy for 77 # DISCOVERs, which is formally specified in RFC 2131. This parameter 78 # is specified in seconds. 79 # 80 # OFFER_WAIT= 81 82 # By default, the DHCP agent does not send out a client identifier 83 # (and hence, the chaddr field is used by the DHCP server as the 84 # client identifier.) To make the DHCP agent send a client 85 # identifier, set and uncomment the following parameter-value pair. 86 # Note that by default this is treated as an NVT ASCII string. To 87 # specify a binary value, prepend "0x" to a sequence of hexadecimal 88 # digits (for example, the value 0xAABBCC11 would set the client 89 # identifier to the 4-byte binary sequence 0xAA 0xBB 0xCC 0x11). 90 # 91 # CLIENT_ID= 92 93 # By default, the DHCP agent will try to request the hostname currently 94 # associated with the interface performing DHCP. If this option is 95 # enabled, the agent will attempt to find a host name in /etc/hostname.<if>, 96 # which must contain a line of the form 97 # 98 # inet name 99 # 100 # where "name" is a single RFC 1101-compliant token. If found, the token 101 # will be used to request that host name from the DHCP server. To prevent 102 # this, uncomment the following line. 103 # 104 # REQUEST_HOSTNAME=no 105 106 # By default, a parameter request list requesting a subnet mask (1), 107 # router (3), DNS server (6), hostname (12), DNS domain (15), broadcast 108 # address (28), and encapsulated vendor options (43), is sent to the DHCP 109 # server when the DHCP agent sends requests. However, if desired, this 110 # can be changed by altering the following parameter-value pair. The 111 # numbers correspond to the values defined in the IANA bootp-dhcp-parameters 112 # registry at the time of this writing. Site and standard option names from 113 # /etc/dhcp/inittab are also accepted. 114 # 115 PARAM_REQUEST_LIST=1,3,6,12,15,28,43 116 117 # The default DHCPv6 parameter request list has preference (7), unicast (12), 118 # DNS addresses (23), DNS search list (24), NIS addresses (27), and 119 # NIS domain (29). This may be changed by altering the following parameter- 120 # value pair. The numbers correspond to the values defined in the IANA 121 # dhcpv6-parameters registry at the time of this writing. Site and standard 122 # option names from /etc/dhcp/inittab6 are also accepted. 123 .v6.PARAM_REQUEST_LIST=7,12,23,24,27,29 124 125 # The parameter ignore list allows you to instruct the DHCP client to discard 126 # optional parameters received from the DHCP server. The format is the same 127 # as the request list above. When discarded, a parameter will not be acted 128 # on by the DHCP client or returned to users via the dhcpinfo(1) command. 129 PARAM_IGNORE_LIST= 130 .v6.PARAM_IGNORE_LIST=