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Chapter 16 Remote Management
NBG4604 User’s Guide
156
16.5
The Telnet Screen
You can use Telnet to access the NBG4604’s command line interface. Specify
which interfaces allow Telnet access and from which IP address the access can
come.
Click
Management
>
Remote MGMT
>
Telnet
tab to display the screen as
shown.
Figure 91
Management > Remote Management > Telnet
The following table describes the labels in this screen.
16.6
The FTP Screen
You can use FTP (File Transfer Protocol) to upload and download the NBG4604’s
firmware and configuration files. Please see the User’s Guide chapter on firmware
Table 63
Management > Remote Management > Telnet
LABEL
DESCRIPTION
Server Port
You may change the server port number for a service if needed, however
you must use the same port number in order to use that service for
remote management.
Server Access
Select the interface(s) through which a computer may access the
NBG4604 using this service.
Secured Client
IP Addess
A secured client is a “trusted” computer that is allowed to communicate
with the NBG4604 using this service.
Select
All
to allow any computer to access the NBG4604 using this
service.
Choose
Selected
to just allow the computer with the IP address that you
specify to access the NBG4604 using this service.
Apply
Click
Apply
to save your customized settings and exit this screen.
Reset
Click
Reset
to begin configuring this screen afresh.
Page 157 / 268
Chapter 16 Remote Management
NBG4604 User’s Guide
157
and configuration file maintenance
for details. To use this feature, your computer
must have an FTP client.
Use this screen to specify which interfaces allow FTP access and from which IP
address the access can come. To change your NBG4604’s FTP settings, click
Management > Remote MGMT
>
FTP
. The screen appears as shown.
Figure 92
Management > Remote Management > FTP
The following table describes the labels in this screen.
16.7
The SNMP Screen
Simple Network Management Protocol is a protocol used for exchanging
management information between network devices. Your NBG4604 supports
SNMP agent functionality, which allows a manager station to manage and monitor
the NBG4604 through the network. The NBG4604 supports SNMP version one
Table 64
Management > Remote Management > FTP
LABEL
DESCRIPTION
Server Port
You may change the server port number for a service, if needed.
However, you must use the same port number in order to use that
service for remote management.
Server Access
Select the interface(s) through which a computer may access the
NBG4604 using this service.
Secured Client
IP Address
A secured client is a “trusted” computer that is allowed to communicate
with the NBG4604 using this service.
Select
All
to allow any computer to access the NBG4604 using this
service.
Choose
Selected
to just allow the computer with the IP address that
you specify to access the NBG4604 using this service.
Apply
Click
Apply
to save your customized settings and exit this screen.
Reset
Click
Reset
to begin configuring this screen afresh.
Page 158 / 268
Chapter 16 Remote Management
NBG4604 User’s Guide
158
(SNMPv1) and version two (SNMPv2c). The next figure illustrates an SNMP
management operation.
Figure 93
SNMP Management Model
An SNMP managed network consists of two main types of component: agents and
a manager.
An agent is a management software module that resides in a managed device (the
NBG4604). An agent translates the local management information from the
managed device into a form compatible with SNMP. The manager is the console
through which network administrators perform network management functions. It
executes applications that control and monitor managed devices.
The managed devices contain object variables/managed objects that define each
piece of information to be collected about a device. Examples of variables include
such as number of packets received, node port status etc. A Management
Information Base (MIB) is a collection of managed objects. SNMP allows a
manager and agents to communicate for the purpose of accessing these objects.
SNMP itself is a simple request/response protocol based on the manager/agent
model. The manager issues a request and the agent returns responses using the
following protocol operations:
•
Get - Allows the manager to retrieve an object variable from the agent.
•
GetNext - Allows the manager to retrieve the next object variable from a table
or list within an agent. In SNMPv1, when a manager wants to retrieve all
elements of a table from an agent, it initiates a Get operation, followed by a
series of GetNext operations.
Page 159 / 268
Chapter 16 Remote Management
NBG4604 User’s Guide
159
•
Set - Allows the manager to set values for object variables within an agent.
•
Trap - Used by the agent to inform the manager of some events.
16.7.1
Configuring SNMP
To change your NBG4604’s SNMP settings, click
Management > Remote MGMT
>
SNMP
tab. The screen appears as shown. Use this screen to configure your
SNMP settings.
Figure 94
Management > Remote MGMT > SNMP
The following table describes the labels in this screen.
Table 65
Management > Remote MGMT > SNMP
LABEL
DESCRIPTION
SNMP Settings
Server Port
The SNMP agent listens on port 161 by default. If you change the SNMP
server port to a different number on the NBG4604, for example 8161,
then you must notify people who need to access the NBG4604 SNMP
agent to use the same port.
Server Access
Select the interface(s) through which a computer may access the
NBG4604 using this service.
Secured Client
IP Address
A secured client is a “trusted” computer that is allowed to access the
SNMP agent on the NBG4604.
Select
All
to allow any computer to access the SNMP agent.
Choose
Selected
to just allow the computer with the IP address that you
specify to access the SNMP agent.
Page 160 / 268
Chapter 16 Remote Management
NBG4604 User’s Guide
160
16.8
The ACS Screen
An administrator can use an ACS to remotely set up the NBG4604, modify its
settings, perform firmware upgrades, and monitor and diagnose it. In order to do
so, you must enable the TR-069 feature on your NBG4604 and then configure it
appropriately. (The ACS server which it will use must also be configured by its
administrator.)
The following terms and concepts may help as you read this part.
ACS
An Auto-Configuration Server (ACS) centralizes the management and
configuration of a variety of networking devices such as routers, set-top boxes,
Voice over IP (VoIP) gateways, and other Customer Premises Equipment (CPE). It
is based on the TR-069 standard.
OUI Filter
An Organizationally Unique Identifier (OUI) filter blocks or forwards packets from
devices with the specified OUI in the MAC address. The OUI field is the first three
SNMP Settings
Enable SNMP
Select this to enable SNMP on this device.
SNMP version
Select the SNMP version that corresponds the SNMP used by the server.
Read
Community
Enter the SNMP read community information here.
Set
Community
Enter the SNMP get community information here.
System
Location
Enter the SNMP system location.
System
Contact
Enter the SNMP system contact.
Trap Settings
Trap Settings
Select this to enable trap settings on this device.
Trap Manager
IP
Type the IP address of the station to send your SNMP traps to.
Trap
Community
Type the trap community, which is the password sent with each trap to
the SNMP manager. The default is public and allows all requests.
Apply
Click
Apply
to save the setting to the NBG4604.
Cancel
Click
Reset
to begin configuring this screen afresh.
Table 65
Management > Remote MGMT > SNMP (continued)
LABEL
DESCRIPTION

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