Enabling and Disabling DHCP

You can enable or disable the DHCP feature on the device. By default, DHCP is disabled.

When the DHCP feature is disabled, you cannot configure the DHCP relay agent, DHCP snooping, or any of the features that depend on DHCP. In addition, all DHCP configuration is removed from the device.

For more information, see the Cisco Nexus 9000 Series NX-OS Security Configuration Guide.

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-installation-and-configuration-guides-list.html/

Enabling DHCP

Enabling DHCP

POST http://<IP_Address>/api/mo/sys.json

{
  "topSystem": {
    "children": [
      {
        "fmEntity": {
          "children": [
            {
              "fmDhcp": {
                "attributes": {
                  "adminSt": "enabled"
}}}]}}]}}

{
    imdata:[]
}

<System>
  <fm-items>
    <dhcp-items>
      <adminSt>enabled</adminSt>
    </dhcp-items>
  </fm-items>
</System>

Enables DHCP.

CLI Command

The CLI command below is the equivalent to the payload example displayed in the pane on the right.

feature dhcp

Note: The property information for this example was added in Release 9.3(3).

Verifying a DME Configuration
The following table contains the distinguished name (DN) for each managed object (MO) in the DME payload. Issue a GET request using the DN to verify the configuration was posted or to get information about the configured properties of a particular object.

MO	DN
topSystem	sys
fmEntity	sys/fm
fmDhcp	sys/fm/dhcp

fmDhcp Properties

The following table contains information about the fmDhcp properties in the DME payload. For more information about the properties and MOs, see the NX-API DME Model Reference linked in the Related Documentation section below.

Property Name	Data Type	Description	Values
adminSt	fm:AdminState (scalar:Enum8)	Admin status	SELECTION: 1 - enabled 2 - disabled DEFAULT: disabled

Related Documentation

For other CLI options, see the Cisco Nexus 9000 Series NX-OS Command Reference:

http://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-command-reference-list.html

See the NX-API DME Model Reference for detailed information about classes and attributes described in the payload:

https://developer.cisco.com/site/nx-os/docs/nexus-model-reference/

For information about using the payloads, see the Cisco Nexus 9000 Series NX-OS Programmability Guide:

https://www.cisco.com/c/en/us/support/switches/nexus-9000-series-switches/products-programming-reference-guides-list.html

Disabling DHCP

Disabling DHCP

POST http://<IP_Address>/api/mo/sys.json

{
  "topSystem": {
    "children": [
      {
        "fmEntity": {
          "children": [
            {
              "fmDhcp": {
                "attributes": {
                  "adminSt": "disabled"
}}}]}}]}}

{
    imdata:[]
}

<System>
  <fm-items>
    <dhcp-items>
      <adminSt>disabled</adminSt>
    </dhcp-items>
  </fm-items>
</System>

Disables DHCP.