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The VPN information from authentication modules takes priority over the VPN information of the
receiving interface.
To apply a DHCPv6 address pool to a VPN instance:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Create an address pool and
enter its view.
ipv6 dhcp pool
pool-name
By default, no DHCPv6 address
pools exist.
3. Apply the address pool to a
VPN instance.
vpn-instance
vpn-instance-name
By default, the address pool is
not applied to any VPN
instance.
Enabling DHCPv6 logging on the DHCPv6 server
The DHCPv6 logging feature enables the DHCPv6 server to generate DHCPv6 logs and send them
to the information center. For information about the log destination and output rule configuration in
the information center, see Network Management and Monitoring Configuration Guide.
As a best practice, disable this feature if the log generation affects the device performance or
reduces the address and prefix allocation efficiency. For example, this situation might occur when a
large number of clients frequently come online or go offline.
To configure DHCPv6 logging on the DHCPv6 server:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enable DHCPv6 logging.
ipv6 dhcp log enable
By default, DHCPv6 logging is
disabled.
Displaying and maintaining the DHCPv6 server
Execute display commands in any view and reset commands in user view.
Task Command
Display the DUID of the local device.
display ipv6 dhcp duid
Display information about a DHCPv6
option group.
display ipv6 dhcp option-group
[ option-group-number ]
Display DHCPv6 address pool
information.
display ipv6 dhcp pool
[ pool-name |
vpn-instance
vpn-instance-name ]
Display prefix pool information.
display ipv6 dhcp prefix-pool
[
prefix-pool-number ]
[
vpn-instance
vpn-instance-name ]
Display DHCPv6 server information on an
interface.
display ipv6 dhcp server
[
interface
interface-type
interface-number ]
Display information about IPv6 address
conflicts.
display ipv6 dhcp server conflict
[
address
ipv6-address ]
[
vpn-instance
vpn-instance-name ]
Display information about DHCPv6
binding auto backup
display ipv6 dhcp server database
Display information about expired IPv6
display ipv6 dhcp server expired
[ [
address
ipv6-address ]