R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

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Configuring self-defined DHCP options
CAUTION:
Be cautious when configuring self-defined DHCP options because such configuration may affect the
operation of DHCP.
By configuring self-defined DHCP options, you can
• Define new DHCP options. New configuration options 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.
Follow these steps to configure a self-defined DHCP option in the DHCP address pool:
To do… Use the command…
Remarks
Enter system view system-view —
Enter DHCP address pool view
dhcp server ip-pool pool-name
[ extended ]
—
Configure a self-defined DHCP
option
option code { ascii ascii-string |
hex hex-string&<1-16> |
ip-address ip-address&<1-8> }
Required
No DHCP option is configured by
default.
Table 25 Description of common options
O
p
tion O
p
tion name Corres
p
ondin
g
command Command
p
arameter
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