C
HAPTER
40
| DHCP Commands
DHCP Client
– 914 –
â—† When the DHCP client process is enabled and a prefix is successfully
acquired, the prefix is stored in the IPv6 general prefix pool. Other
commands and applications (such as the ipv6 address command) can
then refer to the prefixes in the general prefix pool.
â—† DHCPv6 clients can also request configuration parameters that do not
require a server to maintain any dynamic state for individual clients,
such as DNS server addresses.
â—† DHCPv6 clients builds a list of servers by sending a solicit message and
collecting advertised message replies. These servers are then ranked
based on their advertised preference value. If the client needs to
acquire prefixes from servers, only servers that have advertised
prefixes are considered.
EXAMPLE
The following command submits a client request on VLAN 1.
Console#ipv6 dhcp restart client vlan 1
Console#
RELATED COMMANDS
ipv6 address (927)
show ipv6 dhcp
duid
This command shows the DHCP Unique Identifier for this switch.
COMMAND MODE
Privileged Exec
COMMAND USAGE
DHCPv6 clients and servers are identified by a DHCP Unique Identifier
(DUID) included in the client identifier and server identifier options. Static
or dynamic address prefixes may be assigned by a DHCPv6 server based
on the client’s DUID.
EXAMPLE
Console#show ipv6 dhcp duid
DHCPv6 Unique Identifier (DUID): 0001-0001-4A8158B4-00E00C0000FD
Console#
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