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System Administration Commandsdhcpconfig(1M)


NAME

 dhcpconfig - DHCP service configuration utility

SYNOPSIS

 dhcpconfig -D -r resource -p path [-u uninterpreted] [-l lease_length] [-n ] [-d DNS_domain] [-a DNS_server_addresses] [-h hosts_resource] [-y hosts_domain]
 dhcpconfig -R server_addresses
 dhcpconfig -U [-f] [-x] [-h]
 dhcpconfig -N network_address [-m subnet_mask] [-b ] [-t router_addresses] [-y NIS-domain] [-a NIS_server_addresses]
 dhcpconfig -C -r resource -p path [-f] [-k] [-u uninterpreted]
 dhcpconfig -X filename [-m macro_list] [-o option_list] [-a network_addresses] [-f] [-x]
 dhcpconfig -I filename [-f]

DESCRIPTION

 

The dhcpconfig command is used to configure and manage the Dynamic Host Configuration Protocol (DHCP) service or BOOTP relay services. It is intended for use by experienced Solaris system administrators and is designed for ease of use in scripts. The dhcpmgr utility is recommended for less experienced administrators or those preferring a graphical utility to configure and manage the DHCP service or BOOTP relay service.

The dhcpconfig command can be run by root, or by other users assigned to the DHCP Management profile. See rbac(5) and user_attr(4).

dhcpconfig requires one of the following function flags: -D, -R, -U, -N, -C, -X, or -I.

The dhcpconfig menu driven mode is supported in Solaris 8 and previous versions of Solaris.

Where dhcpconfig Obtains Configuration Information

 

dhcpconfig scans various configuration files on your Solaris machine for information it can use to assign values to options contained in macros it adds to the dhcptab configuration table. The following table lists information dhcpconfig needs, the source used, and how the information is used:

InformationSourceWhere Used
TimezoneSystem date, timezone settingsLocale macro
DNS parametersnsswitch.conf, /etc/resolv.confServer macro
NIS parametersSystem domainname, nsswitch.conf, NISNetwork macros
SubnetmaskNetwork interface, netmasks table in nameserviceNetwork macros

If you have not set these parameters on your server machine, you should do so before configuring the DHCP server with dhcpconfig. Note that if you specify options with the dhcpconfig -D command line, the values you supply override the values obtained from the system files.

OPTIONS

 

The following options are supported:

-C
Convert to using a new data store, recreating the DHCP data tables in a format appropriate to the new data store, and setting up the DHCP server to use the new data store.

The following sub-options are required:

-p path_to_data
The paths for SUNWfiles and SUNWbinfiles must be absolute UNIX pathnames. The path for SUNWnisplus must be a fully specified NIS+ directory (including the tailing period.) See dhcp_modules(5).
-r data_resource
New data store resource. One of the following must be specified: SUNWfiles, SUNWbinfiles, or SUNWnisplus. See dhcp_modules(5).

The following sub-options are optional:

-f
Do not prompt for confirmation. If -f is not used, a warning and confirmation prompt are issued before the conversion starts.
-k
Keep the old DHCP data tables after successful conversion. If any problem occurs during conversion, tables will not be deleted even if -k sub-option is not specified.
-u uninterpreted
Data which will be ignored by dhcpconfig, but passed on to the datastore for interpretation. This might be used for a database account name or other authentication or authorization parameters required by a particular data store. The -u sub-option is not used with the SUNWfiles, SUNWbinfiles, and SUNWnisplus data stores. See dhcp_modules(5).
-D
Configure the DHCP service.

The following sub-options are required:

-r data_resource
One of the following must be specified: SUNWfiles, SUNWbinfiles, or SUNWnisplus. Other data stores may be available.See dhcp_modules(5).
-p path
The paths for SUNWfiles and SUNWbinfiles must be absolute UNIX pathnames. The path for SUNWnisplus must be a fully specified NIS+ directory (including the tailing period.) . See dhcp_modules(5).

The following sub-options are optional:

-a DNS_servers
IP addresses of DNS servers, separated with commas.
-d DNS_domain
DNS domain name.
-h hosts_resource
Resource in which to place hosts data. Usually, the name service in use on the server. Valid values are nisplus, files, or dns.
-l seconds
Lease length used for addresses not having a specified lease length, in seconds.
-n
Non-negotiable leases
-y hosts_domain
DNS or NIS+ domain name to be used for hosts data. Valid only if dns or nisplus is specified for -h sub-option.
-u uninterpreted
Data which will be ignored by dhcpconfig, but passed on to the datastore for interpretation. This might be used for a database account name or other authentication or authorization parameters required by a particular data store. The -u sub-option is not used with the SUNWfiles, SUNWbinfiles, and SUNWnisplus data stores. See dhcp_modules(5).
-I filename
Import data from filename, containing data previously exported from a Solaris DHCP server. Note that after importing, you may have to edit macros to specify the correct domain names, and edit network tables to change the owning server of addresses in imported networks. Use dhtadm and pntadm to do this.

The following sub-option is supported:

-f
Replace any conflicting data with the data being imported.
-N net_address
Configure an additional network for DHCP service.

The following sub-options are supported:

-a NIS_server_addresses
List of IP addresses of NIS servers.
-b
Network is a point-to-point (PPP) network, therefore no broadcast address should be configured. If -b is not used, the network is assumed to be a LAN, and the broadcast address is determined using the network address and subnet mask.
-m xxx.xxx.xxx.xxx
Subnet mask for the network; if -m is not used, subnet mask is obtained from netmasks.
-t router_addresses
List of router IP addresses; if not specified, router discovery flag will be set.
-y NIS_domain_name
If NIS is used on this network, specify the NIS domain name.
-R server_addresses
Configure the BOOTP relay service. BOOTP or DHCP requests are forwarded to the list of servers specified.

server_addresses is a comma separated list of hostnames and/or IP addresses.

-U
Unconfigure the DHCP service or BOOTP relay service.

The following sub-options are supported:

-f
Do not prompt for confirmation. If -f is not used, a warning and confirmation prompt is issued.
-h
Delete hosts entries from name service.
-x
Delete the dhcptab and network tables.
-X filename
Export data from the DHCP data tables, saving to filename, to move the data to another Solaris DHCP server.

The following sub-options are optional:

-a networks_to_export
List of networks whose addresses should be exported, or the keyword ALL to specify all networks. If -a is not specified, no networks are exported.
-m macros_to_export
List of macros to export, or the keyword ALL to specify all macros. If -m is not specified, no macros are exported.
-o options_to_export
List of options to export, or the keyword ALL to specify all options. If -o is not specified, no options are exported.
-x
Delete the data from this server after it is exported. If -x is not specified you are in effect copying the data.

EXAMPLES

 Example 1. Configuring DHCP Service with Binary Files Data Store
 

The following command configures DHCP service, using the binary files data store, in the DNS domain acme.eng, with a lease time of 28800 seconds (8 hours),

 
example# dhcpconfig -D -r SUNWbinfiles -p /var/dhcp -l 28800 -d acme.eng
     -a 120.30.33.4 -h dns -y acme.eng
Example 2. Configuring BOOTP Relay Agent
 

The following command configures the DHCP daemon as a BOOTP relay agent, which will forward BOOTP and DHCP requests to the servers having the IP addresses 120.30.33.7 and 120.30.42.132:

 
example# dhcpconfig -R 120.30.33.7,120.30.42.132
Example 3. Unconfiguring DHCP Service
 

The following command unconfigures the DHCP service, with confirmation, and deletes the DHCP data tables and host table entries:

 
example# dhcpconfig -U -x -h
Example 4. Configuring a Network for DHCP Service
 

The following command configures an additional LAN network for DHCP service, specifying that clients should use router discovery and providing the NIS domain name and NIS server address:

 
example# dhcpconfig -N 120.30.171.0 -y east.acme.eng.com -a 120.30.33.4
Example 5. Converting to SUNWnisplus Data Store
 

The following command converts a DHCP server from using a text or binary files data store to a NIS+ data store, deleting the old data store's DHCP tables:

 
example# dhcpconfig -C -r SUNWnisplus -p whatever.com.
Example 6. Exporting a Network, Macros, and Options from a DHCP Server
 

The following command exports one network (120.30.171.0) and its addresses, the macro 120.30.171.0, and the options motd and PSptrfrom a DHCP server, saves the exported data in file /export/var/120301710_data, and deletes the exported data from the server.

 
example# dhcpconfig -X /var/dhcp/120301710_export
     -a 120.30.171.0 -m 120.30.171.0 -o motd,PSptr

Example 7. Importing Data on a DHCP Server
 

The following command imports DHCP data from a file, /net/golduck/export/var/120301710_data, containing data previously exported from a Solaris DHCP server, and overwrites any conflicting data on the importing server:

 
example# dhcpconfig -I /net/golduck/export/var/120301710_data -f

ATTRIBUTES

 

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
AvailabilitySUNWdhcsu
Interface StabilityEvolving

SEE ALSO

 

dhcpmgr(1M), dhtadm(1M), in.dhcpd(1M), pntadm(1M), dhcp_network(4), dhcptab(4), dhcpsvc.conf(4), nsswitch.conf(4), resolv.conf(4), user_attr(4), attributes(5), dhcp(5), dhcp_modules(5), rbac(5)

System Administration Guide: IP Services


SunOS 5.9Go To TopLast Changed 3 Dec 2001

 
      
      
Copyright 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.