4000 Router Series Layer 3 - IP Services Command Reference

Parameters

ip-address: Specifies the IP address of a server.

Usage guidelines

Upon startup, the DHCP client obtains its own IP address and the specified server IP address, and then

contacts the specified server, such as a TFTP server, to get other boot information.

If you use the next-server command multiple times, the most recent configuration takes effect.

Examples

# Specify a server's IP address 10.1.1.254 in DHCP address pool 0.

<Sysname> system-view

[Sysname] dhcp server ip-pool 0

[Sysname-dhcp-pool-0] next-server 10.1.1.254

Related commands

display dhcp server pool

option

Use option to configure a self-defined DHCP option in a DHCP address pool.

Use undo option to remove a self-defined DHCP option from a DHCP address pool.

Syntax

option code { ascii ascii-string | hex hex-string | ip-address ip-address&<1-8> }

undo option code

Default

No self-defined DHCP option is configured in a DHCP address pool.

Views

DHCP address pool view

Predefined user roles

network-admin

Parameters

code: Specifies the number of the self-defined option, in the range of 2 to 254, excluding 12, 50 through

61, and 82.

ascii ascii-string: Specifies an ASCII string of 1 to 255 characters as the option content.

hex hex-string: Specifies a hex string of even numbers from 2 to 256 as the option content.

ip-address ip-address&<1-8>: Specifies the IP addresses as the option content. &<1-8> indicates that you

can specify up to eight IP addresses separated by spaces.

Usage guidelines

The DHCP server fills the self-defined option with the specified ASCII string, hex string, or IP addresses,

and sends it in a response to the client.

If you use the option command with the same code specified, the most recent configuration takes effect.

You can self-define options for the following purposes: