exit
30-8 DHCPv6 Configuration
Parameters
Defaults
Default value of valid lifetime of prefix: 604,800
Default value of preferred lifetime of prefix: 2,592,000
Mode
Router DHCPv6 pool configuration mode: C3(su)->router(Config-dhcp6s-pool)#
Usage
Use this command to manually configure an IPv6 address prefix to be delegated to a specific
client, identified by their DHCP unique identifier. Refer to RFC 3633, “IPv6 Prefix Options for
Dynamic Host Configuration Protocol (DHCP) version 6,” for more information about prefix
delegation.
Use the no form of this command to remove a configured prefix.
Example
This example configures a prefix to be delegated to the prefix delegation client identified by the
DUID 00:02:00:00:00:11:0A:C0:89:D3:03:00:09:AA. The default lifetime values are used.
C3(su)->router(Config)# ipv6 dhcp pool PoolA
C3(su)->router(Config-dhcp6s-pool)# prefix-delegation 2001:0db8:10::/48
00:02:00:00:00:11:0A:C0:89:D3:03:00:09:AA
exit
This command exits from DHCPv5 pool configuration mode and returns to global configuration
mode.
Syntax
exit
Parameters
None.
prefix/prefix-length This prefix must be in the form documented in RFC 4291, with the
address specified in hexadecimal using 16-bit values between colons.
The value of prefix-length is a decimal number indicating the number of
high-order contiguous bits of the address that comprise the prefix.
DUID The DHCP Unique Identifier (DUID) of the prefix delegation client, as
described in RFC 3315.
name hostname (Optional) The name of the prefix delegation client, consisting of up to
31 alpha-numeric characters. This name is used for logging and/or
tracing only.
valid-lifetime secs |
infinite
(Optional) The valid lifetime of the prefix, specified as seconds or as
infinite. The value of secs can range from 0 to 4294967295.
preferred-lifetime
secs | infinite
(Optional) The preferred lifetime of the prefix, specified as seconds or as
infinite. The value of secs can range from 0 to 4294967295.
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