Ipv6 Dhcp Server - Cisco Catalyst 3560X-24P Command Reference Manual

ipv6 dhcp server

ipv6 dhcp server
Use the ipv6 dhcp server interface configuration command on the switch stack or on a standalone switch
to enable Dynamic Host Configuration Protocol for IPv6 (DHCPv6) service on an interface. To disable
DHCPv6 service on an interface, use the no form of this command.
This command is available only if you have configured a dual IPv4 and IPv6 Switch Database
Note
Management (SDM) template on the switch. The command is not supported on switches running the
LAN base feature set.
Syntax Description poolname
automatic
rapid-commit
preference value
allow-hint
Defaults By default, no DHCPv6 packets are serviced on the interface.
Command Modes
Interface configuration
Command History Release
12.2(53)SE2
Usage Guidelines
The ipv6 dhcp server interface configuration command enables DHCPv6 service on a specified
interface.
The automatic keyword enables the system to automatically determine which pool to use when
allocating addresses for a client. When an IPv6 DHCP packet is received by the server, the server
determines if it was received from a DHCP relay or if it was directly received from the client. If the
packet was received from a relay, the server verifies the link-address field inside the packet associated
with the first relay that is closest to the client. The server matches this link-address against all address
prefix and link-address configurations in IPv6 DHCP pools to find the longest prefix match. The server
selects the pool associated with the longest match.
Catalyst 3750-X and 3560-X Switch Command Reference
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ipv6 dhcp server [poolname | automatic] [rapid-commit] [preference value] [allow-hint]
no ipv6 dhcp server [poolname | automatic] [rapid-commit] [preference value] [allow-hint]
(Optional) User-defined name for the IPv6 DHCP pool. The pool name can
be a symbolic string (such as Engineering) or an integer (such as 0).
(Optional) Enable the server to automatically determine which pool to use
when allocating addresses for a client.
(Optional) Allow two-message exchange method.
(Optional) The preference value carried in the preference option in the
advertise message sent by the server. The range is from 0 to 255. The
preference value default is 0.
(Optional) Specify whether the server should consider client suggestions in
the SOLICIT message. By default, the server ignores client hints.
Modification
This command was introduced.
Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
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