Configuring Self-Defined Dhcp Options - HP 5920 Series Configuration Manual

Step
5. (Optional.) Configure the voice
VLAN.
6. (Optional.) Specify the failover IP
address and dialer string.

Configuring self-defined DHCP options

CAUTION:
Use caution when configuring self-defined DHCP options because such configuration might affect DHCP
operation.
You can self-define options for the following purposes:
Add newly released options.
•
• Add options for which the vendor defines the contents, for example, Option 43.
Add options for which the CLI does not provide a dedicated configuration command. For example,
•
you can use the option 4 ip-address 1.1.1.1 command to define the time server address 1.1.1.1 for
DHCP clients.
Add all option values if the actual requirement exceeds the limit for a dedicated option
•
configuration command. For example, the dns-list command can specify up to eight DNS servers.
To specify more than eight DNS servers, you must use the option 6 command to define all DNS
servers.
To configure a self-defined DHCP option in a DHCP address pool:
Step
1. Enter system view.
2. Enter DHCP address pool
view.
3. Configure a self-defined
DHCP option.
Table 2 Common DHCP options
Option
3
6
15
44
46
Command
system-view
dhcp server ip-pool pool-name
option code { ascii ascii-string | hex
hex-string | ip-address
ip-address&<1-8> }
Option name
Router Option
Domain Name Server Option
Domain Name
NetBIOS over TCP/IP Name
Server Option
NetBIOS over TCP/IP Node
Type Option
Command
voice-config voice-vlan vlan-id
{ disable | enable }
voice-config fail-over ip-address
dialer-string
Corresponding
command
gateway-list
dns-list
domain-name
nbns-list
netbios-type
37
Remarks
By default, no voice VLAN is
configured.
By default, no failover IP
address or dialer string is
specified.
Remarks
N/A
N/A
By default, no self-defined DHCP
option is configured.
Recommended option
command parameters
ip-address
ip-address
ascii
ip-address
hex