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

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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.