option router disable

Function

The option router disable command disables the function of sending a gateway address to DHCP clients.

The undo option router disable command enables the function of sending a gateway address to DHCP clients.

By default, the function of sending a gateway address to DHCP clients is enabled in an address pool.

Format

option router disable

undo option router disable

Parameters

None

Views

IP address pool view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
dhcp	write

Usage Guidelines

Usage Scenario

When a carrier has high requirements on network security and does not want clients to get aware of the gateway address, run the option router disable command to prohibit the DHCP server from sending clients Option 3 that contains the gateway address.

Configuration Impact

After the option router disable command is executed, DHCP clients cannot obtain the gateway address through Option 3.

Follow-up Procedure

Configure routes towards the target network. For example, run the option33 route command to allow a DHCP client to obtain both the gateway address and the routes towards the target network.

Example

# Disable the function of sending a gateway address (Option 3) to DHCP clients in an address pool named huawei.

<HUAWEI> system-view
[~HUAWEI] ip pool huawei server
[~HUAWEI-ip-pool-huawei] option router disable