- Juniper Router Hardware Guide

Configure the JUN
OS Internet Software
Configure the JUNOS Internet Software
The router is s
hipped with the JUNOS Internet software preinstalled and ready to be
configured when the router is powered on. There are three copies of the software: one
on a nonrotating flash drive in the Routing Engine, one on a rotating hard drive in the
Routing Engin
e, and one on a PC card that can be inserted into the slot in the Routing
Engine faceplate.
When the rout
er boots, it first attempts to start the image on the PC card. If a PC card is
not inserted into the Routing Engine or the attempt otherwise fails, the router next tries
the flash drive, and finally the hard drive.
You configure the router by issuing JUNOS command-line interface (CLI) commands, either
on a console device attached to the CONSOLE port on the craft interface, or over a telnet
connection t
o a network connected to the MGMT port on the craft interface. Gather the
following information before configuring the router:
Name the rou
ter will use on the network
Domain name the router will use
IP address and prefix length information for the Ethernet interface
IP address o
fadefaultrouter
IP address of a DNS server
Password for the root user
To configur
e the software, follow this procedure:
1. If the router is not already turned on, power it on as described in “Power On the
Router on p
age 67.
2. Log in a s th
e “root” user. There is no password.
3. Start the C
LI.
root# cli
root@>
4. Enter configuration mode.
cli> configure
[edit]
root@#
5. Configur
e the name of the router. If the name includes spaces, enclose the name in
quotation marks (“ ”).
[edit]
root@# set system host-name host-name
6. Configure the router’s domain name.
[edit]
root@# se
t system domain-name domain-na me
Connect the Router and Perform Initial Configuration 69