Configuration Guide Configuring DHCPv6
 Enabling the DHCPv6 Server Service
ipv6 dhcp server poolname [rapid-commit] [preference value]
poolname: Indicates the name of a user-defined DHCPv6 configuration pool.
rapid-commit: Permits the two-message exchange process.
preference value: Configures the priority of the advertise message, ranging from 0 to 255. The default value
is 0.
Interface configuration mode
Run the ipv6 dhcp server command to enable the DHCPv6 service on an interface.
When the rapid-commit keyword is configured, the two-message exchange with a client is permitted during
allocation of address prefixes and other configurations. After this keyword is configured, if the Solicit
message from a client contains the rapid-commit option, the DHCPv6 server will send a Reply message
directly.
If preference is set to a non-0 value, the advertise message sent by the DHCPv6 server contains the
preference option. The preference field affects the server selection by a client. If an advertise message
does not contain this field, the value of preference is considered 0. If the value of preference received by
the client is 255, the client sends a request to the server immediately to obtain configurations.
The DHCPv6 client, server, and relay functions are mutually exclusive. An interface can be configured with
only one function at a time.
Configuration Example
 Configuring the DHCPv6 Server
 Configure a configuration pool named "pool1".
 Configure the IA_NA address prefix for the DHCPv6 server.
 Configure prefixes of statically bound addresses on the DHCPv6 server.
 Configure two DNS servers.
 Configure the domain name.
 Enable the DHCPv6 server service on an interface.
Ruijie# configure terminal
Ruijie(config)# ipv6 dhcp pool pool1
Ruijie(config-dhcp)# iana-address prefix 2008:50::/64 lifetime 2000 1000
Ruijie(config-dhcp)# prefix-delegation 2008:2::/64 0003000100d0f82233ac
Ruijie(config-dhcp)# dns-server 2008:1::1
Ruijie(config-dhcp)# dns-server 2008:1::2
Ruijie(config-dhcp)# domain-name example.com
Ruijie(config-dhcp)#exit
Ruijie(config)# interface GigabitEthernet 0/1
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