dhcp server trust option82

Function

The dhcp server trust option82 command enables Option 82 on the DHCP server.

The undo dhcp server trust option82 command disables Option 82 on the DHCP server.

By default, the DHCP server trusts Option 82.

Format

dhcp server trust option82

undo dhcp server trust option82

Parameters

None

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

This command is used on the DHCP server to enable the Option 82 function. After receiving a DHCP packet that carries the Option 82 field but the giaddr is 0, the DHCP server processes the packet by default. Using the undo dhcp server trust option82 command, the DHCP server discards the packet.

Prerequisites

DHCP has been enabled globally by using the dhcp enable command.

Example

# Enable Option 82 of the DHCP server.

<HUAWEI> system-view
[HUAWEI] dhcp enable
[HUAWEI] dhcp server trust option82