dhcpv6 relay option-insert

Function

The dhcpv6 relay option-insert command enables a DHCPv6 relay agent to add relay options to DHCPv6 messages.

The undo dhcpv6 relay option-insert command disables a DHCPv6 relay agent from adding relay options to DHCPv6 messages.

By default, DHCPv6 relay agents do not add relay options to DHCPv6 messages.

Format

dhcpv6 relay option-insert { interface-id mode { cn-telecom | tr-101 | cn-telecom-inherit } | remote-id | subscriber-id }

dhcpv6 relay option-insert { interface-id mode self-define opt18Text | remote-id mode self-define opt37Text }

undo dhcpv6 relay option-insert { interface-id | remote-id | subscriber-id }

Parameters

Parameter	Description	Value
interface-id mode	Adds the Interface-ID option to DHCPv6 messages.	-
cn-telecom	Adds the Interface-ID option in the cn-telecom format to DHCPv6 messages.	-
tr-101	Adds the Interface-ID option in the TR101 format to DHCPv6 messages.	-
cn-telecom-inherit	Adds the Interface-ID option in the format inherited from cn-telecom to DHCPv6 messages.	-
remote-id mode	Adds the Remote-ID option to DHCPv6 messages.	-
subscriber-id	Adds the Subscriber-ID option to DHCPv6 messages.	-
self-define opt18Text	Adds the Remote-ID option in a self-defined format to DHCPv6 messages.	The value is a string of 1 to 255 characters. The string can contain letters, digits, underscores (_), and periods (.).
self-define opt37Text	Adds the Remote-ID option in a self-defined format to DHCPv6 messages.	The value is a string of 1 to 255 characters. The string can contain letters, digits, underscores (_), and periods (.).

Views

100GE interface view, 10GE interface view, 25GE interface view, 400GE interface view, 40GE interface view, 50GE interface view, Eth-Trunk interface view, FlexE sub-interface view, FlexE interface view, GE optical interface view, GE interface view, GE electrical interface view, Global VE sub-interface view, VBDIF interface view, VE sub-interface view, VLANIF interface view, Sub-interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
dhcp	write

Usage Guidelines

Usage Scenario

DHCPv6 relay Interface-ID option, Subscriber-ID option, and Remote-ID option carry detailed user information for address allocation and parameter configuration. After the dhcpv6 relay option-insert command is run on an inbound interface, the interface constructs a Relay-Forward message based on the received Request message and encapsulates DHCPv6 options to the Relay-Forward message.

Example

# Configure a DHCPv6 relay agent to add the Subscriber-ID option to DHCPv6 messages received on GE 0/1/0.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/0
[~HUAWEI-GigabitEthernet0/1/0] dhcpv6 relay option-insert subscriber-id

# Configure a DHCPv6 relay agent to add the Remote-ID option to DHCPv6 messages received on GE 0/1/0.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/0
[~HUAWEI-GigabitEthernet0/1/0] dhcpv6 relay option-insert remote-id

# Configure a DHCPv6 relay agent to add the Interface-ID option to DHCPv6 messages received on GE 0/1/0.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/0
[~HUAWEI-GigabitEthernet0/1/0] dhcpv6 relay option-insert interface-id mode cn-telecom