dhcp

 


 
 
 
 Standards, Environments, and Macros                       dhcp(5)
 
 
 


NAME

dhcp - Dynamic Host Configuration Protocol

DESCRIPTION

Dynamic Host Configuration Protocol (DHCP) enables host sys- tems in a TCP/IP network to be configured automatically for the network as they boot. DHCP uses a client/server mechan- ism: servers store configuration information for clients, and provide that information upon a client's request. The information can include the client's IP address and informa- tion about network services available to the client. This manual page provides a brief summary of the Solaris DHCP implementation. Solaris DHCP Client The Solaris DHCP client is implemented as background daemon, dhcpagent(1M). This daemon is started automatically during bootup if there exists at least one dhcp.interface file in /etc. Only interfaces with a corresponding /etc/dhcp.interface file are automatically configured during boot. Network parameters needed for system configuration during bootup are extracted from the information recieved by the daemon through the use of the dhcpinfo(1) command. The daemon's default behavior can be altered by changing the tunables in the /etc/default/dhcpagent file. The daemon is controlled by the ifconfig(1M) utility. Check the status of the daemon using the netstat(1M) and ifconfig(1M) commands. Solaris DHCP Server The Solaris DHCP server is implemented as a background dae- mon, in.dhcpd(1M). This daemon can deliver network confi- guration information to either BOOTP or DHCP clients. The Solaris DHCP service can be managed using the dhcpmgr(1M) GUI or the command line utilities dhcpconfig(1M), dhtadm(1M), and pntadm(1M). DHCP Configuration Tables The Solaris DHCP server stores client configuration informa- tion in the following two types of tables: dhcptab tables Contain macros and options (also known as sym- bols), used to construct a package of configura- tion information to send to each DHCP client. There exists only one dhcptab for the DHCP ser- vice. The dhcptab(4) can be viewed and modified using the dhtadm(1M) command or dhcpmgr(1M) graphical utility. See dhcptab(4) for more infor- mation about the syntax of dhcptab records. See dhcp_inittab(4) for more information about the DHCP options and symbols. SunOS 5.8 Last change: 13 Mar 2001 1 Standards, Environments, and Macros dhcp(5) DHCP network tables DHCP network tables, which contain mappings of client IDs to IP addresses and parameters associ- ated with those addresses. Network tables are named with the IP address of the network, and can be created, viewed, and modified using the pntadm command or dhcpmgr graphical utility. See dhcp_network(4) for more information about net- work tables.

SEE ALSO

dhcpinfo(1), dhcpagent(1M), dhcpconfig(1M), dhcpmgr(1M), dhtadm(1M), ifconfig(1M), in.dhcpd(1M), netstat(1M), pntadm(1M), syslog(3C), dhcp_network(4), dhcptab(4), dhcpsvc.conf(4), dhcp_inittab(4), dhcp_modules(5) Solaris DHCP Service Developer's Guide Alexander, S., and R. Droms, DHCP Options and BOOTP Vendor Extensions, RFC 2132, Silicon Graphics, Inc., Bucknell University, March 1997. Droms, R., Interoperation Between DHCP and BOOTP,, RFC 1534, Bucknell University, October 1993. Droms, R., Dynamic Host Configuration Protocol, RFC 2131, Bucknell University, March 1997. Wimer, W., Clarifications and Extensions for the Bootstrap Protocol, RFC 1542, Carnegie Mellon University, October 1993. SunOS 5.8 Last change: 13 Mar 2001 2