dhcpv6 relay source-ip-address

Function

The dhcpv6 relay source-ip-address command configures the source IPv6 address for DHCPv6 messages relayed by a DHCPv6 relay agent.

The undo dhcpv6 relay source-ip-address command restores the default source IPv6 address of DHCPv6 messages relayed by a DHCPv6 relay agent.

By default, a DHCPv6 relay agent uses the IPv6 address of the outbound interface as the source IPv6 address for DHCPv6 messages.

Format

dhcpv6 relay source-ip-address ipv6-address

undo dhcpv6 relay source-ip-address [ ipv6-address ]

Parameters

Parameter	Description	Value
ipv6-address	Specifies a source IPv6 address for DHCPv6 messages relayed by a DHCPv6 relay agent.	The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.

Parameter

Description

Value

ipv6-address

Specifies a source IPv6 address for DHCPv6 messages relayed by a DHCPv6 relay agent.

The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X.

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

To help a DHCPv6 server know the forwarding path of DHCPv6 messages sent from a client and facilitate address allocation and parameter configuration, run the dhcpv6 relay source-ip-address command so that DHCPv6 messages relayed by a DHCPv6 relay agent carry the specified source IPv6 address.

Example

# Configure 2001:db8::1 as the source IPv6 address for DHCPv6 messages received on GE0/1/1.

<HUAWEI> system-view
[~HUAWEI] interface GigabitEthernet 0/1/1
[~HUAWEI-GigabitEthernet0/1/1] dhcpv6 relay source-ip-address 2001:db8::1