H3C SOHO IE4300, Command Reference Manual

Page: 976 / 3296

3
Syntax
ipv6 dhcp log enable
undo ipv6 dhcp log enable
Default
DHCPv6 server logging is disabled.
Views
System view
Predefined user roles
network-admin
Usage guidelines
This command enables the DHCPv6 server to generate DHCPv6 logs and send them to the
information center. The log information helps administrators locate and solve problems. 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.
Examples
# Enable DHCPv6 server logging.
<Sysname> system-view
[Sysname] ipv6 dhcp log enable
ipv6 dhcp select
Use
ipv6 dhcp select
to enable the DHCPv6 server or DHCPv6 relay agent on an interface.
Use
undo ipv6 dhcp select
to restore the default.
Syntax
ipv6 dhcp select { relay | server }
undo ipv6 dhcp select
Default
An interface does not work in the DHCPv6 server mode or in the DHCPv6 relay agent mode. It
discards DHCPv6 packets from DHCPv6 clients.
Views
Interface view
Predefined user roles
network-admin
Parameters
relay : Enables the DHCPv6 relay agent on the interface.
server
: Enables the DHCPv6 server on the interface.
Usage guidelines
Before changing the DHCPv6 server mode to the DHCPv6 relay agent mode on an interface, use the
following commands to remove IPv6 address/prefix bindings: