Juniper Networks MX240 manual Configuring Junos Software, Configuring the Junos Software

Chapter 10

Configuring JUNOS Software

■Configuring the JUNOS Software on page 61

Configuring the JUNOS Software

The router is shipped with the JUNOS software preinstalled and ready to be configured when the router is powered on. There are three copies of the software: one on a CompactFlash card in the Routing Engine, one on a hard disk in the Routing Engine, and one on a USB flash drive that can be inserted into the slot in the Routing Engine faceplate.

When the router boots, it first attempts to start the image on the USB flash drive. If a USB flash drive is not inserted into the Routing Engine or the attempt otherwise fails, the router next tries the CompactFlash card (if installed), and finally the hard disk.

You configure the router by issuing JUNOS command-line interface (CLI) commands, either on a console device attached to the CONSOLE port on the Routing Engine, or over a telnet connection to a network connected to the ETHERNET port on the Routing Engine.

Gather the following information before configuring the router:

■Name that the router will use on the network

■Domain name that the router will use

■IP address and prefix length information for the Ethernet interface

■IP address of a default router

■IP address of a DNS server

■Password for the root user

This procedure connects the router to the network but does not enable it to forward traffic. For complete information about enabling the router to forward traffic, including examples, see the JUNOS software configuration guides.

To configure the software:

1.Verify that the router is powered on, as described in “Powering On an AC-Powered Router” on page 55 or “Powering On a DC-Powered Router” on page 58.

2.Log in as the root user. There is no password.

Configuring the JUNOS Software ■ 61