Configuring self-defined dhcp options – H3C Technologies H3C SecPath F1000-E User Manual

Page 199

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174

Step Command

Remarks

5.

Specify the bootfile name.

bootfile-name bootfile-name

Not specified by default.

Configuring self-defined DHCP options

By configuring self-defined DHCP options, you can

•

Define new DHCP options. New configuration options will come out with DHCP development. To
support these new options, you can add them into the attribute list of the DHCP server.

•

Define existing DHCP options. Vendors use Option 43 to define options that have no unified
definitions in RFC 2132. The self-defined DHCP option enables DHCP clients to obtain

vendor-specific information.

•

Extend existing DHCP options. When the current DHCP options cannot meet the customers'
requirements (for example, you cannot use the dns-list command to configure more than eight DNS

server addresses), you can configure a self-defined option for extension.

To configure a self-defined DHCP option in the DHCP address pool:

Step Command

Remarks

1.

Enter system view.

system-view

N/A

2.

Enter DHCP address pool
view.

dhcp server ip-pool pool-name
[ extended ]

N/A

3.

Configure a self-defined

DHCP option.

option code { ascii ascii-string |
hex hex-string&<1-16> |
ip-address ip-address&<1-8> }

No DHCP option is configured by
default.

Table 30 Description of common options

Option Option name

Corresponding command

Command parameter

3 Router

Option

gateway-list ip-address

6

Domain Name Server Option

dns-list ip-address

15 Domain

Name

domain-name ascii

44

NetBIOS over TCP/IP Name
Server Option

nbns-list ip-address

46

NetBIOS over TCP/IP Node Type
Option

netbios-type hex

66

TFTP server name

tftp-server ascii

67 Bootfile

name

bootfile-name ascii

43

Vendor Specific Information

—

hex

CAUTION:

Be cautious When you configure self-defined DHCP options because such configuration may affect the
operation of DHCP.

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