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Commands for DHCPv6
326
Usage Guide: This command configures the address pool for the DHCPv6 server to
allocate addresses, only one address range can be configured for each address pool. To
be noticed, if the DHCPv6 server has been enabled, and the length of the IPv6 address
prefix has been configured, the length of the prefix in the address pool should be no less
than the length of the prefix of the IPv6 address of the respective layer three interfaces in
the switch. If <ipv6-pool-end-address> is bigger than <ipv6-pool-start-address>, this
command returns at once.
Example: To configure the address range for address pool as
2001:da8:123::100-2001:da8:123::200.
Switch(dhcp-1-config)#network-address 2001:da8:123::100 2001:da8:123::200
Relative Command: excluded-address
27.21 prefix-delegation
Command: prefix-delegation <ipv6-prefix/prefix-length> <client-DUID> [iaid
<iaid>] [lifetime <valid-time> <preferred-time>]
no prefix-delegation <ipv6-prefix/prefix-length> <client-DUID> [iaid <iaid>]
Function: To configure dedicated prefix delegation for the specified user. The no form of
this command will remove the dedicated prefix delegation.
Parameters: <ipv6-prefix/prefix-length> is the length of the prefix to be allocated to
the client. <client-DUID> is the DUID of the client. DUID with the type of DUID-LLT and
DUID-LL are supported, the DUID of DUID-LLT type should be of 14 characters. <iaid>
is the value to be appended in the IA_PD field of the clients’ requests. <valid-time> and
<preferred-time> are the valid life time and the preferred life time of the IPv6 address
allocated to the clients respectively, in seconds, and its value is allowed between 1 and
31536000. However <preferred-time> should be less than <valid-time>. If not
configured, the default <valid-time> will be 2592000, while <preferred-time> will be
604800.
Command Mode: DHCPv6 Address Pool Configuration Mode.
Default: Disabled.
Usage Guide: This command configures the specified IPv6 address prefix to bind with
the specified client. If no IAID is configured, any IA of any clients will be able get this
address prefix. At most eight static binding address prefix can be configured for each
address pool. For prefix delegation, static binding is of higher priority than the prefix
address pool.
Example: The following command will allocate 2001:da8::/48 to the client with DUID as
0001000600000005000BBFAA2408, and IAID as 12.
Switch(dhcp-1-config)#prefix-delegation 2001:da8::/48