dhcpv6 relay server-select

Function

The dhcpv6 relay server-select command configures a DHCPv6 server group for a DHCPv6 relay agent.

The undo dhcpv6 relay server-select command deletes a DHCPv6 server group for a DHCPv6 relay agent.

By default, no DHCPv6 server group is configured.

Format

dhcpv6 relay server-select group-name

undo dhcpv6 relay server-select

Parameters

Parameter	Description	Value
group-name	Specifies the name of a DHCPv6 server group.	The value is a string of 1 to 32 case-sensitive characters without spaces.

Views

VLANIF interface view, VBDIF interface view, Eth-Trunk interface view, GE interface view, XGE interface view, 25GE interface view, MultiGE interface view, MultiGE sub-interface view, 40GE interface view, 100GE interface view, Eth-Trunk sub-interface view, GE sub-interface view, XGE sub-interface view, 25GE sub-interface view, 40GE sub-interface view, 100GE sub-interface view

Default Level

2: Configuration level

Usage Guidelines

Use Scenario

The dhcpv6 relay server-select command is used on DHCPv6 relay agents. When a DHCPv6 client sends DHCPv6 Request packets to a DHCPv6 server through a DHCPv6 relay agent, you can run the dhcp relay server-select command to specify a DHCPv6 server group for the DHCPv6 relay agent and configure the IPv6 address of the DHCPv6 server.

Prerequisites

A DHCPv6 server group has been created using the dhcpv6 server group command.
The IPv6 function has been enabled using the ipv6 enable command in the interface view.

Precautions

Each DHCPv6 server group can be bound to multiple interfaces, but each interface can only be bound to one DHCPv6 server group.
IP addresses of servers in a DHCPv6 server group cannot be on the same network segment with IP addresses of interfaces on the DHCPv6 relay agent.
If you run the dhcpv6 relay server-select command multiple times in the same interface view, only the latest configuration takes effect.

Example

# Configure the DHCPv6 server group named group 1 for the DHCPv6 relay agent on VLANIF100.

<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] dhcp enable
[HUAWEI] dhcpv6 server group group1
[HUAWEI-dhcpv6-server-group-group1] dhcpv6-server fc00:1::1
[HUAWEI-dhcpv6-server-group-group1] quit
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] ipv6 enable
[HUAWEI-Vlanif100] dhcpv6 relay server-select group1

# Configure the DHCPv6 server group named group 1 for the DHCPv6 relay agent on GE0/0/1.

<HUAWEI> system-view
[HUAWEI] ipv6
[HUAWEI] dhcp enable
[HUAWEI] dhcpv6 server group group1
[HUAWEI-dhcpv6-server-group-group1] dhcpv6-server fc00:1::1
[HUAWEI-dhcpv6-server-group-group1] quit
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] ipv6 enable
[HUAWEI-GigabitEthernet0/0/1] dhcpv6 relay server-select group1