Configuring A Pppoa Client Instance; Configuring A Netscreen Address Change Notification - Juniper NETWORK AND SECURITY MANAGER 2010.4 - CONFIGURING SCREENOS DEVICES GUIDE REV 01 Manual

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Configuring a PPPoA Client Instance

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Configuring a NetScreen Address Change Notification

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Copyright © 2010, Juniper Networks, Inc.
Select Clear On Disconnect.
Leave all other defaults.
Click OK to save your changes to the device.
12.
Configuring a NetScreen Address Change Notification on page 141
Example: Updating DNS Servers (NSM Procedure) on page 136
Configuring a PPPoA Client Instance on page 141
PPPoA is typically used for PPP sessions that terminate on a security device with an
ADSL interface (the NetScreen-5GT ADSL security device). On the ADSL interface (or
its subinterfaces), you can configure a PPPoA client instance with a username, password,
and other parameters, and then bind the instance to the ADSL interface (or subinterface).
When the NetScreen-5GT ADSL security device initiates a PPPoA connection to the
PPPoA server (controlled by the service provider), the server automatically provides the
IP addresses for the Untrust zone interface and for the Domain Name System (DNS)
servers. Using this information, the security device automatically updates the DNS server
addresses in its DHCP server (you can disable this automatic update if desired).
For details and an example of configuring an ADSL interface with PPPoA, see "ADSL
Interface in ScreenOS Devices" on page 88.
Example: Configuring Multiple PPPoE Sessions on a Single Interface (NSM Procedure)
on page 138
Configuring a NetScreen Address Change Notification on page 141
Interface Failover in ScreenOS Devices on page 142
Use the NACN option to configure NetScreen Address Change Notification (NACN). NACN
is available only on security devices running ScreenOS 5.0.x. Before NSM can contact a
security device, it must have the current IP address of the device interface. This is relatively
easy when the security device has a static IP address on its interface. However, an interface
on a security device can have a dynamically assigned IP address, using either PPPoE or
DHCP. In these cases, the security device uses NACN to monitor a specific interface and
then register with NSM the IP address of the interface whenever it changes. This prevents
interruption of communication between NSM and the security device.
For more detailed explanation about NACN on security devices, see the "Administration"
volume in the Concepts & Examples ScreenOS Reference Guide for ScreenOS 5.0.0.
Configuring a PPPoA Client Instance on page 141
Example: Configuring Modem Connections (NSM Procedure) on page 142
Chapter 4: Advanced Network Settings
141