Juniper NETSCREEN-5GT User Manual page 12

Required Configuration
This section describes the configurations that you must complete to use the NetScreen-
5GT with its default settings.
Note: If you have any problems completing a configuration and you need to restore the
device to its default settings, see
Untrust Interface Address
You must configure an IP address for the Untrust interface to enable the NetScreen-5GT
to connect to the Internet. This IP address represents your network to the outside world
and is obtained from your Internet Service Provider (ISP) in one of the following ways:
• Your ISP gives you a specific, fixed IP address and netmask for your network.
• Your network receives an IP address from a server via Dynamic Host
Configuration Protocol (DHCP).
• Your network receives an IP address from a server via Point-to-Point Protocol
over Ethernet (PPPoE).
See "Configuring the Untrust Interface" on page
Admin Name and Password
Juniper Networks highly recommends that you change your admin name and password to
the NetScreen-5GT, as all Juniper Networks NetScreen products use the same default
admin name and password. See
Optional Configuration
The following optional configurations are not described in detail in this manual. Refer to
the appropriate sections in the NetScreen Concepts & Examples ScreenOS Reference
Guide for more information.
Port Mode
The port mode is the binding of physical ports, logical interfaces, and zones. The default
port mode, Trust-Untrust, binds the Trust interface to the Trust zone and the Untrust
interface to the Untrust zone. Changing the port mode changes these bindings. This
manual only covers configuring the NetScreen-5GT in the Trust-Untrust port mode. For
more information about port modes and how to change them, refer to the "Zones" chapter
in Volume 2 of the NetScreen Concepts & Examples ScreenOS Reference Guide.
Warning: Changing the port mode removes any existing configurations on the NetScreen-
5GT. Therefore, change the port mode before configuring it.
NetScreen-5GT
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"Resetting the Device to Factory Defaults" on page
9.
"Changing Your Admin Name and Password" on page
Default Settings
10.
9.
5