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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 h ard 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 as th
e “root” u ser. 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-n ame
Connect the Router and Perform Initial Configuration 69