Connecting the Router and Performing Initial Configuration
Configuring the JUNOS Internet Software
The router is shipped with the JUNOS Internet softwarepreinstalled and ready
to be configured when the router is poweredon. There are three copies of
thesoftware: oneonanonrotatingflashdriveintheRoutingEngine,one
on a rotating hard drivein the Routing Engine, and one on a PC card that
canbeinsertedintotheslotintheRoutingEnginefaceplate.
When the router boots, it first attempts to start the image on the PC card. If
a PC card is not inserted into the RoutingEngine or the attempt otherwise fails,
the router next tries the flash drive, and finally the hard drive.
Youconfigure the router by issuing JUNOS command-line interface(CLI) commands,
either on a console device attachedto the CONSOLE port on the CIP, or overa telnet
connection to a network connected tothe ETHERNET port on the CIP.
Gather the following information before configuring t he router:
Name the router will use on the network
Domain name the router will use
IP address and prefix length information for the Ethernet i nterface
IP address of a default router
IP address of a DNS server
Password forthe root user
To configure the software, follow this procedure:
1. If the router is not already turned on, power it on asde scribed in “Powering On
the Router” on page 119.
2. Loginasthe“root”user. Thereisnopassword.
3. Start the CLI.
root# cli
root@>
4. Enter configuration mode.
cli> configure
[edit]
root@#
5. Configurethenameoftherouter. Ifthenameincludesspaces,enclosethe
name in quotation marks (“ ”).
[edit]
root@# set system host-name host-name
Configuring the JUNOS Internet Software 121