dns-suffix

Function

The dns-suffix command configure a DNS domain name suffix.

The undo dns-suffix command deletes the configuration.

By default, no DNS domain name suffix is configured for an address pool.

Format

dns-suffix suffix-name

undo dns-suffix

Parameters

Parameter	Description	Value
suffix-name	Specifies a DNS domain name suffix.	The value is a string of 1 to 50 characters and can contain digits, letters, underscores (_), and periods (.), but not spaces.

Parameter

Description

Value

suffix-name

Specifies a DNS domain name suffix.

The value is a string of 1 to 50 characters and can contain digits, letters, underscores (_), and periods (.), but not spaces.

Views

IP address pool view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
dhcp	write

Usage Guidelines

Usage Scenario

Every DHCP client has its own domain name. To allow communication between DHCP clients through domain names and avoid IP address conflicts during domain name resolution, run the dns-suffix command to configure a DNS domain name suffix. The DHCP server sends the DNS domain name to DHCP clients through Option 15 during IP address assignment. DHCP clients then add a suffix to the DNS domain name for resolution.

Precautions

If no domain name suffix is configured for a DHCP client in an address pool, the DHCP server fails to send the domain name suffix to the DHCP client, and the DHCP client fails to communicate with the DHCP server.

Example

# Set the DNS domain name suffix to huawei.com for an address pool named huawei.

<HUAWEI> system-view
[~HUAWEI] ip pool huawei
[~HUAWEI-ip-pool-huawei] dns-suffix huawei.com