H3C Technologies H3C S12500 Series Switches - Manual (Page 152)

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Configuring the DHCPv6 server on an interface
Enable the DHCP server and configure one of the following address/prefix assignment methods on an
interface:
• Apply an address pool on the interface—The DHCPv6 server selects an IPv6 address/prefix from
the applied address pool for a requesting client. If there is no assignable IPv6 address/prefix in the
address pool, the DHCPv6 server cannot to assign an IPv6 address/prefix to a client.
• Configure global address assignment on the interface—The DHCPv6 server selects an IPv6
address/prefix in the global DHCPv6 address pool that matches the server interface address or the
DHCPv6 relay agent address for a requesting client.
If you configure both methods on an interface, the DHCPv6 server uses the specified address pool for
address assignment without performing global address assignment.
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Configuration guidelines
• An interface cannot serve as a DHCPv6 server and DHCPv6 relay agent at the same time.
• Do not enable DHCPv6 server and DHCPv6 client on the same interface.
• If you use the ipv6 dhcp server command multiple times, the most recent configuration takes effect.
• You can apply an address pool that has not been created to an interface. The setting takes effect
after the address pool is created.
• Only one address pool can be applied to an interface. If you use the ipv6 dhcp server apply pool
command multiple times, the most recent configuration takes effect.
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Configuration procedure
To configure the DHCPv6 server on an interface:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter interface view. interface interface-type interface-number N/A
3. Enable the DHCPv6
server on the interface.
ipv6 dhcp select server
By default, the interface discards
DHCPv6 packets from DHCPv6
clients.
4. Configure an
address/prefix
assignment method.
• Configure global address assignment:
ipv6 dhcp server { allow-hint |
preference preference-value |
rapid-commit } *
• Apply a DHCPv6 address pool to the
interface:
ipv6 dhcp server apply pool
pool-name [ allow-hint | preference
preference-value | rapid-commit ] *
Use one of the commands.
By default, desired
address/prefix assignment and
rapid assignment are disabled,
and the default preference is 0.