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Initial Configuration on NFX250 Devices

Before you begin connecting and configuring an NFX250 device, set the following parameter values on the console server or PC:

  • Baud Rate—9600

  • Flow Control—None

  • Data—8

  • Parity—None

  • Stop Bits—1

  • DCD State—Disregard

You must perform the initial configuration of the NFX250 device through the console port using the command-line interface (CLI).

To connect and configure the device from the console:

  1. Connect the console port to a laptop or PC using an RJ-45 cable and RJ-45 to DB-9 adapter. The console (CON) port is located on the management panel of the device.
  2. If the Network Service Orchestrator module is configured, this client connects to the Network Activator and provisions the latest software image, if the image on the NFX250 device is not the latest.

    If authentication is configured, you will receive an authentication code, which must be provided on the Web page specified by the operator.

  3. The Juniper Device Manager (JDM) command-line interface (CLI) displays; log in as root. There is no password. If the software booted before you connected to the console port, you might need to press the Enter key for the prompt to appear.
  4. Start the CLI.
  5. Enter configuration mode.
  6. Add a password to the root administration user account.
  7. (Optional) Configure the name of the device. If the name includes spaces, enclose the name in quotation marks (“ ”).
  8. Configure the IP address and prefix length for the device management interface.

    jmgmt0 is the out-of-band management network interface in JDM.

    To configure an IPV6 address, run the root@jdm# set interface jmgmt0 family inet6 address address v6_address.


    jmgmt0 is found on the front panel of the NFX250 device.

  9. Configure the default gateway.
  10. Commit the configuration to activate it on the device.

If Network Service Orchestrator module is configured, this client connects to the Network Activator as soon as the device is switched on, and provisions the initial configuration and the latest software image and, if the image on the NFX250 device is not the latest.

The Network Activator is responsible for the bare-minimum bootstrapping of the NFX250. After successful configuration and software upgrade, the device reboots and the Network Service Activator configuration is removed.

To complete the Network Service Orchestrator module process:

  1. Connect to any front panel WAN port (see Figure 1).

  2. Open web browser and enter the IP address

  3. Enter the authentication code in the Web page that is displayed.

    Once the process is complete, a confirmation message is displayed. Click Logs to display details of the bootstrapping process.


    You can also use the CLI to provide the authentication code:

Figure 1: NFX250 Front Panel ComponentsNFX250 Front Panel Components

1-Gigabit Ethernet RJ-45 network ports


System status LEDs


SFP and SFP+ ports Link and Status LEDs


Mode button


mini-USB console port


1/10-Gigabit SFP+ uplink ports


Console port


1-Gigabit SFP network/uplink ports


USB port


1-Gigabit Ethernet RJ-45 network/uplink ports


1-Gigabit Management port