Configuration procedure

# Enable IPv6 and DHCPv6 server.

<Switch> system-view
[Switch] ipv6
[Switch] ipv6 dhcp server enable

# Configure the IPv6 address of VLAN-interface 2.

[Switch] interface vlan-interface 2
[Switch-Vlan-interface2] ipv6 address 1::1/64
[Switch-Vlan-interface2] quit

# Create and configure prefix pool 1.

[Switch] ipv6 dhcp prefix-pool 1 prefix 2001:0410::/32 assign-len 48

# Create address pool 1.

[Switch] ipv6 dhcp pool 1

# Apply prefix pool 1 to address pool 1, and set the preferred lifetime to one day, the valid lifetime to three days.

[Switch-ipv6-dhcp-pool-1] prefix-pool 1 preferred-lifetime 86400 valid-lifetime 259200

# Configure static prefix 2001:0410:0201::/48 in address pool 1, and set the client DUID as 00030001CA0006A40000, the preferred lifetime to one day, and the valid lifetime to three days.

[Switch-ipv6-dhcp-pool-1] static-bind prefix 2001:0410:0201::/48 duid 00030001CA0006A40000 preferred-lifetime 86400 valid-lifetime 259200

# Configure the DNS server address as 2:2::3.

[Switch-ipv6-dhcp-pool-1] dns-server 2:2::3

# Configure the domain name as aaa.com.

[Switch-ipv6-dhcp-pool-1] domain-name aaa.com

# Configure the SIP server address as 2:2::4, and the domain name of the SIP server as bbb.com.

[Switch-ipv6-dhcp-pool-1] sip-server address 2:2::4
[Switch-ipv6-dhcp-pool-1] sip-server domain-name bbb.com
[Switch-ipv6-dhcp-pool-1] quit

# Apply address pool 1 to VLAN-interface 2, configure the address pool to support the desired prefix assignment and rapid prefix assignment, and set the precedence to the highest.

[Switch] interface vlan-interface 2
[Switch-Vlan-interface2] ipv6 dhcp server apply pool 1 allow-hint preference 255 rapid-commit