# junos_l3_interfaces – Manage Layer 3 interface on Juniper JUNOS devices

New in version 2.9.

- Synopsis

- Requirements

- Parameters

- Notes

- Examples

- Return Values

- Status

## Synopsis

- This module provides declarative management of a Layer 3 interface on Juniper JUNOS devices

## Requirements

The below requirements are needed on the host that executes this module.

- ncclient (>=v0.6.4)

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---
config list / elements=dictionary |  | A dictionary of Layer 3 interface options
| ipv4 list / elements=dictionary |  | IPv4 addresses to be set for the Layer 3 logical interface mentioned in name option. The address format is <ipv4 address>/<mask>. The mask is number in range 0-32 for example, 192.0.2.1/24, or `dhcp` to query DHCP for an IP address
|  | address string |  | IPv4 address to be set for the specific interface
| ipv6 list / elements=dictionary |  | IPv6 addresses to be set for the Layer 3 logical interface mentioned in name option. The address format is <ipv6 address>/<mask>, the mask is number in range 0-128 for example, 2001:db8:2201:1::1/64 or `auto-config` to use SLAAC
|  | address string |  | IPv6 address to be set for the specific interface
| name string / required |  | Full name of interface, e.g. ge-0/0/1
| unit integer | Default: 0 | Logical interface number. Value of `unit` should be of type integer

state
string

Choices:
- merged ←
- replaced
- overridden
- deleted

The state of the configuration after module completion

## Notes

Note

- This module requires the netconf system service be enabled on the device being managed.

- This module works with connection `netconf`. See the Junos OS Platform Options.

- Tested against JunOS v18.4R1

## Examples

    # Using deleted

    # Before state:
    # -------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 10.200.16.10/24;
    #         }
    #     }
    # }
    # ge-0/0/2 {
    #     description "non L3 interface";
    #     unit 0 {
    #         family ethernet-switching {
    #             interface-mode access;
    #             vlan {
    #                 members 2;
    #             }
    #         }
    #     }
    # }

    - name: Delete JUNOS L3 logical interface
      junos_l3_interfaces:
        config:
          - name: ge-0/0/1
          - name: ge-0/0/2
      state: deleted

    # After state:
    # ------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "deleted L3 interface";
    # }
    # ge-0/0/2 {
    #     description "non L3 interface";
    #     unit 0 {
    #         family ethernet-switching {
    #             interface-mode access;
    #             vlan {
    #                 members 2;
    #             }
    #         }
    #     }
    # }

    # Using merged

    # Before state
    # ------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 10.200.16.10/24;
    #         }
    #     }
    # }
    # ge-0/0/2 {
    #     description "non configured interface";
    #     unit 0;
    # }

    - name: Merge provided configuration with device configuration (default operation is merge)
      junos_l3_interfaces:
        config:
          - name: ge-0/0/1
            ipv4:
               - address: 192.168.1.10/24
            ipv6:
               - address: 8d8d:8d01::1/64
          - name: ge-0/0/2
            ipv4:
               - address: dhcp
        state: merged

    # After state:
    # ------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 10.200.16.10/24;
    #             address 192.168.1.10/24;
    #         }
    #         family inet6 {
    #             address 8d8d:8d01::1/64;
    #         }
    #     }
    # }
    # ge-0/0/2 {
    #     description "L3 interface with dhcp";
    #     unit 0 {
    #         family inet {
    #             dhcp;
    #         }
    #     }
    # }

    # Using overridden

    # Before state
    # ------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 10.200.16.10/24;
    #         }
    #     }
    # }
    # ge-0/0/2 {
    #     description "L3 interface with dhcp";
    #     unit 0 {
    #         family inet {
    #             dhcp;
    #         }
    #     }
    # }
    # ge-0/0/3 {
    #     description "another L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 192.168.1.10/24;
    #         }
    #     }
    # }

    - name: Override provided configuration with device configuration
      junos_l3_interfaces:
        config:
          - name: ge-0/0/1
            ipv4:
               - address: 192.168.1.10/24
            ipv6:
               - address: 8d8d:8d01::1/64
          - name: ge-0/0/2
            ipv6:
               - address: 2001:db8:3000::/64
        state: overridden

    # After state:
    # ------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 192.168.1.10/24;
    #         }
    #         family inet6 {
    #             address 8d8d:8d01::1/64;
    #         }
    #     }
    # }
    # ge-0/0/2 {
    #     description "L3 interface with ipv6";
    #     unit 0 {
    #         family inet6 {
    #             address 2001:db8:3000::/64;
    #         }
    #     }
    # }
    # ge-0/0/3 {
    #     description "overridden L3 interface";
    #     unit 0;
    # }

    # Using replaced

    # Before state
    # ------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 10.200.16.10/24;
    #         }
    #     }
    # }
    # ge-0/0/2 {
    #     description "non configured interface";
    #     unit 0;
    # }
    # ge-0/0/3 {
    #     description "another L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 192.168.1.10/24;
    #         }
    #     }
    # }

    - name: Replace provided configuration with device configuration
      junos_l3_interfaces:
        config:
          - name: ge-0/0/1
            ipv4:
               - address: 192.168.1.10/24
            ipv6:
               - address: 8d8d:8d01::1/64
          - name: ge-0/0/2
            ipv4:
               - address: dhcp
        state: replaced

    # After state:
    # ------------
    #
    # admin# show interfaces
    # ge-0/0/1 {
    #     description "L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 192.168.1.10/24;
    #         }
    #         family inet6 {
    #             address 8d8d:8d01::1/64;
    #         }
    #     }
    # }
    # ge-0/0/2 {
    #     description "L3 interface with dhcp";
    #     unit 0 {
    #         family inet {
    #             dhcp;
    #         }
    #     }
    # }
    # ge-0/0/3 {
    #     description "another L3 interface";
    #     unit 0 {
    #         family inet {
    #             address 192.168.1.10/24;
    #         }
    #     }
    # }

## Return Values

Common return values are documented here, the following are the fields unique to this module:

Key | Returned | Description
--- | --- | ---
after list | when changed | The configuration as structured data after module completion. Sample: The configuration returned will always be in the same format of the parameters above.
before list | always | The configuration as structured data prior to module invocation. Sample: The configuration returned will always be in the same format of the parameters above.
commands list | always | The set of commands pushed to the remote device. Sample: ['command 1', 'command 2', 'command 3']

## Status

- This module is not guaranteed to have a backwards compatible interface. [preview]

- This module is maintained by the Ansible Network Team. [network]

### Red Hat Support

More information about Red Hat’s support of this module is available from this Red Hat Knowledge Base article.

### Authors

- Daniel Mellado (@dmellado)

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