Chapter 10 Configuring Junos Software; Configuring The Junos Software; Configuring Junos Software - Juniper MX240 Hardware Manual

Chapter 10

Configuring JUNOS Software

Configuring the JUNOS Software

Configuring the JUNOS Software on page 61
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:
Verify that the router is powered on, as described in "Powering On an AC-Powered
1.
Router" on page 55 or "Powering On a DC-Powered Router" on page 58.
Log in as the root user. There is no password.
2.
Configuring the JUNOS Software
61