SEARCH
NEW RPMS
DIRECTORIES
ABOUT
FAQ
VARIOUS
BLOG
DONATE


YUM REPOSITORY

 
 

MAN page from Mandriva 2009 dhcpv6-server-1.1.0-1mdv2009.1.i586.rpm

dhcp6s.conf

Section: File Formats (5)
Index

 

NAME

dhcp6s.conf - configuration file of the DHCPv6 server daemon, dhcp6s

 

DESCRIPTION

dhcp6s.confcontains the configuration information of addresses, prefixes, orvarious network configuration parameters for each of the interfaces. The network configuration parameters can be described globally for all of the interfaces. The default address preferred life time is 36000 seconds; the default address valid life time is 72000 seconds if they are not definedin any declaration. The specific declaration order is interface, link, host;within link the more specific declaration is pool.


 The interface definitions are described in the following form:

	interface <interface name>	{		[declarations];	};

 where each of the declarations could be of type link, group, or host. Each declaration and the statements within each of these declarations must be terminated by a semicolon. Additional details of the declarations are specified below.

 

DECLARATIONS

interface <interface name>{	[declarations];};
An interface declaration is used to inform the DHCPv6 server that the links andhosts declared within it are connected to the same network segment. Commonnetwork parameters for this network segment can be defined within the interfacedeclaration.

link <link name>{	[declarations];};
A link declaration is used to provide the DHCPv6 server the IPv6 assginedaddress ranges, prefixes, and hosts. Common network parameters for this link can be defined within the link declaration.

group{	[declarations];};
A group declaration is used to group a list of declarations together to definethe common network parameters. These network parameters are valid within thisdeclaration only. Declarations can be one of the following types: interface, link,pool, or host.

pool{	[declarations];};
The pool declaration is used to declare an address pool from which IPv6address can be allocated, with its own permit to control client accessand its own declaration in which you can declare pool-specific network parameters.

host <host name>{	[duid <DUID];	[iaidinfo {}];	[address {}];	[prefix <prefix>/<prefix length>];	[declarations];};
This declaration allows administrators to describe the addresses, prefixes, andnetwork configuration parameters for this host. As for this declaration, theDHCP Unique Identifier (DUID), Identity Association Identifier (IAID), and addresses must be specified. The host declaration is used to do StaticAddress Assginment for a particular DHCPv6 client.

address{	[<ipv6 address>/<prefix length>];	[prefer-life-time <preferred lifetime>];	[valid-life-time <valid lifetime>];};
This statement allows administrators to specify the address for the host. Preferred Lifetime and Valid Lifetime also can be set in thisstatement. This statement is valid only in host {} declarations.

prefix <prefix>/<prefix length>;
This statement allows administrators to specify the prefix.This parameter is needed when configuring dhcp6s as the Delegation Router forthe Prefix Delegation. dhcp6s assigns the specified prefixes to the requesting routers.

relay <relay>/<prefix length>;
This statement specifies the prefix that the relay agent will put in the linkaddress field of the RELAY-FORW message to indicate the link the client isattached to. If the link-address matches this prefix, this link declarationwill be used. This statement is only valid in the link declaration.

iaidinfo{	[iaid <IAID number>];	[renew-time <renew time>];	[rebind-time <rebind time>];};
This statement allows administrators to describe the information for this IAID. This statement is only valid in host {} declarations.iaid is required; renew-time and rebind time are optional in this statement.

range <ipv6 address> to <ipv6 address>/<prefix length>;
This statement allows adminstrators to use "range" and "to" keywords andprefix length to specify an address range.For each range not more than one of the unassigned addresses will beassgined to the requested client.

duid <DUID>;
DUID is a DHCP Unique Identifier for a DHCP participant. Using this option,the administrator can specify the DUID of this DHCPv6 client.The duid statement is valid only in host {} declarations.

iaid <IAID number>;
IAID is a Identity Association Identifier. IA is a collection of addressesassigned to a client. Using this option, the administrator can specify the IAIDin iaidinfo for a host declaration.

renew-time <renew time>;
This statement allows administrators to specify the RenewTime (T1).The recommended value for RenewTime is .5 times the shortest preferredlifetime of the address in the IA, if the value is not defined.

rebind-time <rebind time>;
This statement allows administrators to specify the RebindTime (T2).The recommended value for RenewTime is .8 times the shortest preferred lifetime of the address in the IA, if the value is not defined.

prefer-life-time <preferred lifetime>;
This statement allows administrators to specify the Preferred Life Time for each address.

valid-life-time <valid lifetime>;
This statement allows administrators to specify the Valid Life Time for each address.

option dns_servers <ipv6 addresses or domain name list>;
This statement allows administrators to specify the DNS servers.

send <OPTION>;This declaration enables dhcp6s to include the specified option in sending DHCPv6 messages.

send unicast;
This declaration enables dhcp6s to send a Server Unicast option. UsuallyDHCPv6 clients must use multicast addresses to contact the DHCPv6 server andagents. This declaration specifies that dhcp6s will accept unicast messagesfrom DHCPv6 clients if they include a Server Unicast option.

server-preference <server preference value>;
This declaration enables dhcp6s to include a Preference option for sendingDHCPv6 messages. DHCPv6 clients will pick up the DHCPv6 server which hashighest preference value. The highest preference value is 255.

send temp-address;
This declaration assigns a temporary address to the requesting client.

send information-only;
This option enables dhcp6s to give only configuration information rather thanassigning client addresses. This could be, for example, DNS server addressconfiguration information.

allow <OPTION>;
This declaration allows the DHCPv6 client to specify an option in receivingDHCPv6 messages.

allow rapid-commit;
This option enables dhcp6s to allow the Rapid-Commit option from the DHCPv6client and the Solicit-Reply message exchanges.

allow unicast;
This option enables dhcp6s to allow the Server Unicast option for the DHCPv6client. Usually DHCPv6 clients must use multicast addresses to contact DHCPv6server and agents. With this declaration, dhcp6s accepts unicast messages from DHCPv6 clients if they include a Server Unicast option.

allow information-refresh-time <information refresh time>;
This option enables dhcp6s to offer a client an upper bound for how long aclient should wait before refreshing information which the client retrievesby a response to an information only request. If this option is not specified,dhcp6s offers 86400[sec] (24 hours). If you want to offer a client not torefresh the information, specify infinity as the value.

 

EXAMPLES

This is a sample of the dhcp6s.conf file.

option dns_servers 2003::6:1 ibm.com;prefer-life-time 10000;valid-life-time 20000;renew-time 5000;rebind-time 8000;interface eth1 {	link AAA {		allow unicast;		send unicast;		allow rapid-commit;		server-preference 5;		renew-time 1000;		rebind-time 2400;		prefer-life-time 2000;		valid-life-time 3000;		range 3ffe:ffff:100::10 to 3ffe:ffff:100::110/64;		prefix 3ffe:ffef:104::/64;		pool {			prefer-life-time 3600;			valid-life-time 7200;			range fec0:ffff::10 to fec0:ffff::110/64;			prefix fec0:fffe::/48;		};	};	host host0 {		duid 00:00:00:00:a0:a0;		iaidinfo {			iaid 101010;			renew-time 1000;			rebind-time 2000;		};		address {			3ffe:ffff:102::120/64;			prefer-life-time 2000;			valid-life-time 3000;		};	};	group {		prefer-life-time 5000;		valid-life-time 6000;		host host1 {			duid 00:00:00:00:a1:a1;			iaidinfo {				iaid 101011;				renew-time 1000;				rebind-time 2000;			};		};		host host2 {			duid 00:00:00:00:a2:a2;			send information-only;		};	};};

 

SEE ALSO

dhcp6s(8)

 

BUGS

Report bugs via http://fedorahosted.org/dhcpv6/

 

AUTHORS

See http://fedorahosted.org/dhcpv6/wiki/Authors


 

Index

NAME
DESCRIPTION
DECLARATIONS
EXAMPLES
SEE ALSO
BUGS
AUTHORS

This document was created byman2html,using the manual pages.