Juniper-networks J4350 Manual de usuario descargar pdf (Pagina 117)

Establishing Basic Connectivity

If you use the J-Web Se t Up Quick Configuration page, you c an either set a

loopback addr

ess of your choice or have the loopback address automatically set to

127.0.0.1 when you click Apply or OK to commit the configuration.

Built–In Ethe

rnet Interface Address

The built-in G

igabit E therne t interfaces,

ge-0/0/0 through ge-0/0/3, on the front p anel

of the S ervices Router, are the interfaces through which you perform initial router

setup. The examples in this guide use the

ge-0/0/0 interface as the management

interface, b

ut you can use any built-in Ethernet port for management. After the

initial configuration is complete, you can attach the built-in Ethernet port that

you are using for manage ment purposes to the manageme nt network.

Before initial configuration, w h en the factory default configuration is active,

the Service

s Router attempts to perform autoinstallation by obtaining a router

configuration through all its connected interfaces, inclu ding

ge-0/0/0. The Services

Router acts as a DHCP client out the built-in Ethernet interfaces.

If the Services Router does not find a DHCP server within a few

seconds, it

sets the address of

ge-0/0/0 to 192.168.1.1/24 and becomes

a DHCP server out the

ge-0/0/0 interface.

NOTE: If th e ge-0/0/1 interface is being used, it is set to 192.168.2.1/24.

With the router temporarily acting as a DHCP server, you can manually

configure it with the J-Web interface. Any DH CP client host, for example,

a PC or laptop computer, directly connected to

ge-0/0/0 receives an

address on the

192.168.1.1/24 network.

NOTE: The DH

CP functionality for initial setup is different from the configurable

DHCP server functionality of the Services Router d uring operation. To configure the

Services Router as a DHCP server, see the J-series Services Router Adm inistration

Guide.

Once you co

nnect your laptop or PC to

ge-0/0/0,youcanuseaWebbrowserto

visit the address

192.168.1.1/24, access the J-Web Set Up Quick Configuration

page, and complete the initial configuration of the router.

After you perform the in itial configuration and commit it by clicking Apply or OK

on th e Set U

p p age, the co nfigu red router can no longer act as a DHCP server.

Therefore, in order to continue using it as a management interface you should

configure the IP ad dress of the interface as part of the initial configuration.

Management Access

Telnet allows you to connect to the S ervice s Router and a ccess the CLI to

execute commands from a remote system. Telnet connections are not

encrypte

d and therefore can be intercepted.

Basic Connectivity Overview 97

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