dhcpv6 relay option-insert

Function

The dhcpv6 relay option-insert command enables a DHCPv6 relay agent to add the Option to a Relay-Forward message sent to a DHCPv6 server in BAS relay scenarios.

The undo dhcpv6 relay option-insert command disables a DHCPv6 relay agent from adding the Option to a Relay-Forward message sent to a DHCPv6 server in BAS relay scenarios.

By default, a DHCPv6 relay agent is disabled from adding the Option.

This command is supported only on the NetEngine 8000 F1A.

Format

dhcpv6 relay option-insert option-code1

dhcpv6 relay option-insert option-code2 mode cn-telecom version2

undo dhcpv6 relay option-insert option-code1

undo dhcpv6 relay option-insert option-code2 mode cn-telecom version2

Parameters

Parameter	Description	Value
option-code1	DHCPv6 Option Code.	The type is integer, The value is 79.
option-code2	DHCPv6 Option Code.	The type is integer, The value is 18.
mode	Specifies the encapsulation mode.	-
cn-telecom	Indicates that data is encapsulated in the format defined by cn-telecom.	-
version2	Indicates that data is encapsulated in the Version2 format.	-

Views

Interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
dhcpv6	write

Usage Guidelines

This command applies only to BRAS relay scenarios in a remote address pool. In BRAS relay scenarios, when a remote IPv6 address is used for address allocation, the DHCPv6 server encapsulates the Option attribute based on the fixed format. In this case, you need to run this command.

Example

# Enable a DHCPv6 relay agent to add the Option 79 attributes to a Relay-Forward message.

<HUAWEI> system-view
[~HUAWEI] interface Eth-Trunk 100.21
[~HUAWEI-ETH-Trunk 100.21] dhcpv6 relay option-insert 79

# Enable a DHCPv6 relay agent to add the Option 18 attributes in the cn-telecom version2 format to a Relay-Forward message.

<HUAWEI> system-view
[~HUAWEI] interface Eth-Trunk 100.21
[~HUAWEI-ETH-Trunk 100.21] dhcpv6 relay option-insert 18 mode cn-telecom version2