H3C SOHO IE4300, Command Reference Manual

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43
<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 customize a DHCP option.
Use undo option to remove a customized DHCP option.
Syntax
option code { ascii ascii-string | hex hex-string | ip-address
ip-address &<1-8> }
undo option code
Default
No DHCP option is customized.
Views
DHCP address pool view
DHCP option group view
Predefined user roles
network-admin
Parameters
code
: Specifies the number of the customized option, in the range of 2 to 254, excluding 50 through
54, 56, 58, 59, 61, and 82.
ascii ascii-string
: Specifies a case-sensitive ASCII string of 1 to 255 characters as the
option content.
hex hex-string
: Specifies a hexadecimal number as the option content. The length of the
hexadecimal number must be an even number in the range of 2 to 256.
ip-address ip-address &<1-8>
: Specifies a space-separated list of up to eight IP addresses
as the option content.
Usage guidelines
The DHCP server fills the customized option with the specified ASCII string, hexadecimal number, or
IP addresses, and sends it in a response to the client.
You can customize 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 server, you must use the option 6 command to
define all DNS servers.