Chapter 6 Interfaces

6.2.2 DHCP Setting Commands

This table lists DHCP setting commands. DHCP is based on DHCP pools. Create a DHCP pool if you want to assign a static IP address to a MAC address or if you want to specify the starting IP address and pool size of a range of IP addresses that can be assigned to DHCP clients. There are different commands for each configuration. Afterwards, in either case, you have to bind the DHCP pool to the interface.

Table 14 interface Commands: DHCP Settings

COMMAND

DESCRIPTION

show ip dhcp dhcp-options

Shows the DHCP extended option settings.

show ip dhcp pool [profile_name]

Shows information about the specified DHCP pool

 

or about all DHCP pools.

ip dhcp pool rename profile_name profile_name

Renames the specified DHCP pool from the first

 

profile_name to the second profile_name.

[no] ip dhcp pool profile_name

Creates a DHCP pool if necessary and enters sub-

 

command mode. You can use the DHCP pool to

 

create a static entry or to set up a range of IP

 

addresses to assign dynamically.

 

About the sub-command settings:

 

• If you use the host command, the NXC treats

 

this DHCP pool as a static DHCP entry.

 

• If you do not use the host command and use

 

the network command, the NXC treats this

 

DHCP pool as a pool of IP addresses.

 

• If you do not use the host command or the

 

network command, the DHCP pool is not

 

properly configured and cannot be bound to

 

any interface.

 

The no command removes the specified DHCP

 

pool.

show

Shows information about the specified DHCP pool.

 

Use the following commands if you want to create

 

a static DHCP entry. If you do not use the host

 

command, the commands that are not in this

 

section have no effect, but you can still set them.

 

 

[no] host ip

Specifies the static IP address the NXC should

 

assign. Use this command, along with

 

hardware-address, to create a static DHCP

 

entry.

 

Note: The IP address must be in the

 

same subnet as the interface to

 

which you plan to bind the DHCP

 

pool.

 

When this command is used, the NXC treats this

 

DHCP pool like a static entry, regardless of the

 

network setting. The no command clears this

 

field.

[no] hardware-address mac_address

Reserves the DHCP pool for the specified MAC

 

address. Use this command, along with host, to

 

create a static DHCP entry. The no command

 

clears this field.

 

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NXC CLI Reference Guide