HP MSR2000/3000/4000 Router Series Layer 3 - IP Services Command Reference

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allow-hint: Enables desired address/prefix assignment.
preference preference-value: Specifies the server preference in Advertise messages, in the range of 0 to
255. The default value is 0. A greater value specifies a higher preference.
rapid-commit: Enables rapid address/prefix assignment involving two messages.
Usage guidelines
Upon receiving a DHCPv6 request, the DHCPv6 server selects an IPv6 address or prefix from the address
pool applied to the receiving interface. If no address pool is applied, the server selects an IPv6 address
or prefix from a global address pool that matches the IPv6 address of the receiving interface or the
DHCPv6 relay agent.
The allow-hint keyword enables the server to assign the desired address or prefix to the client. If the
desired address or prefix does not exist or is already assigned to another client, the server assigns a free
address or prefix. If allow-hint is not specified, the server ignores the desired address or prefix, and
assigns a free address or prefix.
Only one address pool can be applied to an interface. If you use the command multiple times, the most
recent configuration takes effect.
A non-existing address pool can be applied to an interface, but the server cannot assign any prefix,
address, or other configuration information from the address pool until the address pool is created.
Examples
# Apply address pool 1 to Ethernet 1/1, configure the address pool to support desired address/prefix
assignment and address/prefix rapid assignment, and set the preference to 255.
<Sysname> system-view
[Sysname] interface ethernet 1/1
[Sysname-Ethernet1/1] ipv6 dhcp server apply pool 1 allow-hint preference 255 rapid-commit
Related commands
• display ipv6 dhcp server
• ipv6 dhcp pool
• ipv6 dhcp select
ipv6 dhcp server forbidden-address
Use ipv6 dhcp server forbidden-address to exclude specifiec IPv6 addresses from dynamic allocation.
Use undo ipv6 dhcp server forbidden-address to remove the configuration.
Syntax
ipv6 dhcp server forbidden-address start-ipv6-address [ end-ipv6-address ]
undo ipv6 dhcp server forbidden-address start-ipv6-address [ end-ipv6-address ]
Default
Except for the DHCPv6 server address, all IPv6 addresses in a DHCPv6 address pool are assignable.
Views
System view
Predefined user roles
network-admin