H3C SOHO IE4300, Command Reference Manual

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Usage guidelines
The DSCP value is carried in the Traffic class field of a DHCPv6 packet. It specifies the priority level
of the packet and affects the transmission priority of the packet. A bigger DSCP value represents a
higher priority.
Examples
# Set the DSCP value to 30 for DHCPv6 packets sent by the DHCPv6 client.
<Sysname> system-view
[Sysname] ipv6 dhcp client dscp 30
ipv6 dhcp client duid
Use
ipv6 dhcp client duid
to configure the DHCPv6 client DUID for an interface.
Use undo ipv6 dhcp client duid to restore the default.
Syntax
ipv6 dhcp client duid { ascii ascii-string | hex hex-string | mac
interface-type interface-number }
undo ipv6 dhcp client duid
Default
The interface uses the device bridge MAC address to generate its DHCPv6 client DUID.
Views
VLAN interface view
Predefined user roles
network-admin
Parameters
ascii ascii-string : Specifies a case-sensitive ASCII string of 1 to 130 characters as the
DHCPv6 client DUID.
hex hex-string
: Specifies a hexadecimal number of 2 to 260 characters as the DHCPv6 client
DUID.
mac interface-type interface-number
: Specifies the MAC address of the specified
interface as the DHCPv6 client DUID. The
interface-type interface-number
arguments
specify an interface by its type and number.
Usage guidelines
A DHCPv6 client pads its DUID into the Option 1 of the DHCPv6 packet that it sends to the DHCPv6
server. The DHCPv6 server can assign specific IPv6 addresses or prefixes to DHCPv6 clients with
specific DUIDs.
The DUID of a DHCPv6 client is the globally unique identifier of the client, so make sure the DUID
that you configure is unique.
Examples
# Specify the hexadecimal number FFFFFFFF as the DHCPv6 client DUID for VLAN-interface 10.
<Sysname> system-view
[Sysname] interface vlan-interface 10
[Sysname-Vlan-interface10] ipv6 dhcp client duid hex ffffffff