Optional Configuration - Juniper Networks NETSCREEN-5GT ADSL Guide De L'utilisateur

Chapter 2 Configuring the Device
O C
PTIONAL ONFIGURATION
This section describes the following features on the NetScreen-5GT ADSL device that you
may want to configure:
• Changing the port mode on the device
• Adding virtual circuits on the ADSL interface
• Using a backup interface to the Untrust zone
• Restricting management of the device
• Changing the operational mode
• Modifying the Trust interface address
• Setting additional policies
Note: Not all of the optional configurations are described in detail in this manual. Refer
to the appropriate chapters in the NetScreen Concepts & Examples ScreenOS Reference
Guide for ScreenOS 5.0.0 for more information.
Changing the 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 adsl1
interface to the Untrust zone. Changing the port mode changes these bindings.
Warning: Changing the port mode removes any existing configurations on the NetScreen
device. Therefore, change the port mode before configuring the device.
The following table summarizes the port, interface, and zone bindings provided by the
port modes that are available on the NetScreen-5GT ADSL device:
a
Port Name
1
2
3
4
Untrusted
Modem
ADSL
a. As labeled on the NetScreen appliance chassis.
b. Default port mode.
c. You can configure a backup interface to the Untrust zone, using either the Untrusted Ethernet port or the
Modem port. See
20
Trust-Untrust Port Mode
Interface Zone
trust Trust
trust Trust
trust Trust
trust Trust
c
untrust Null
c
serial Null
adsl1 Untrust
"Configuring a Backup Untrust Zone Interface" on page
b
Home-Work Port Mode
Interface Zone
ethernet1 Work
ethernet1 Work
ethernet2 Home
ethernet2 Home
c
ethernet3 Null
c
serial Null
adsl1 Untrust
Trust/Untrust/DMZ Mode
Interface Zone
ethernet1 Trust
ethernet1 Trust
ethernet2 DMZ
ethernet2 DMZ
c
ethernet3 Null
c
serial Null
adsl1 Untrust
22.
User's Guide