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Page 196 / 228 Scroll up to view Page 191 - 195
Chapter 24 Remote Management
ericom D1000 modem User’s Guide
196
•
Your Device can act as an SNMP agent, which allows a manager station to manage and monitor
the Device through the network. Use the
SNMP
screen (see
Section 24.5 on page 199
) to
configure through which interface(s) and from which IP address(es) users can use SNMP to
access the Device.
•
Use the
DNS
screen (
Section 24.6 on page 201
) to configure through which interface(s) and
from which IP address(es) users can send DNS queries to the Device.
•
Use the
ICMP
screen (
Section 24.7 on page 202
) to set whether or not your Device will respond
to pings and probes for services that you have not made available.
•
Use the
SSH
screen (
Section 24.8 on page 203
) to configure through which interface(s) and from
which IP address(es) users can use SSH to manage the Device.
24.1.2
What You Need to Know About Remote Management
Remote Management Limitations
•
Remote management does not work when:
•
You have not enabled that service on the interface in the corresponding remote management
screen.
•
You have disabled that service in one of the remote management screens.
•
The IP address in the
Secured Client IP Address
field does not match the client IP address. If
it does not match, the Device will disconnect the session immediately.
•
There is a firewall rule that blocks it.
Remote Management and NAT
When NAT is enabled:
•
Use the Device’s WAN IP address when configuring from the WAN.
•
Use the Device’s LAN IP address when configuring from the LAN.
24.2
The WWW Screen
Use this screen to specify how to connect to the Device from a web browser, such as Internet
Explorer.
24.2.1
Configuring the WWW Screen
Click
Maintenance > RemoteMGMT
to display the
WWW
screen.
Page 197 / 228
Chapter 24 Remote Management
ericom D1000 modem User’s Guide
197
Figure 134
Maintenance > RemoteMGMT > WWW
The following table describes the labels in this screen.
Table 80
Maintenance > RemoteMGMT > WWW
LABEL
DESCRIPTION
Server Port
This displays the service port number for accessing the Device using HTTP or HTTPS. If
the number is grayed out, it is not editable.
Server Access
Select the interface(s) through which a computer may access the Device using this
service.
Note: It is recommended if you are allowing WAN access even temporarily to change the
default password (in
Maintenance
>
User Account
). To allow access from the
WAN, you will need to configure a WAN to Router firewall rule. See
Section 3.7 on
page 34
for information on configuring firewall rules.
Secured Client IP
Address
A secured client is a “trusted” computer that is allowed to communicate with the Device
using this service.
Select
All
to allow any computer to access the Device using this service.
Choose
Range
to just allow the computer(s) with an IP address in the range that you
specify to access the Device using this service.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Page 198 / 228
Chapter 24 Remote Management
ericom D1000 modem User’s Guide
198
24.3
The Telnet Screen
You can use Telnet to access the Device’s command line interface. Specify which interfaces allow
Telnet access and from which IP address the access can come.
Click
Maintenance > RemoteMGMT
>
Telnet
tab to display the screen as shown.
Figure 135
Maintenance > RemoteMGMT > Telnet
The following table describes the labels in this screen.
Table 81
Maintenance > RemoteMGMT > Telnet
LABEL
DESCRIPTION
Server Port
This displays the service port number for accessing the Device. If the number is grayed
out, it is not editable.
Server Access
Select the interface(s) through which a computer may access the Device using this
service.
Note: It is recommended if you are allowing WAN access even temporarily to change the
default password (in
Maintenance
>
User Account
). To allow access from the
WAN, you will need to configure a WAN to Router firewall rule. See
Section 3.7 on
page 34
for information on configuring firewall rules.
Secured Client IP
Address
A secured client is a “trusted” computer that is allowed to communicate with the Device
using this service.
Select
All
to allow any computer to access the Device using this service.
Choose
Range
to just allow the computer(s) with an IP address in the range that you
specify to access the Device using this service.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Page 199 / 228
Chapter 24 Remote Management
ericom D1000 modem User’s Guide
199
24.4
The FTP Screen
You can use FTP (File Transfer Protocol) to upload and download the Device’s firmware and
configuration files. Please see the User’s Guide chapter on firmware 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 Device’s FTP settings, click
Maintenance > RemoteMGMT
>
FTP
. The
screen appears as shown.
Figure 136
Maintenance > RemoteMGMT > FTP
The following table describes the labels in this screen.
24.5
The SNMP Screen
Simple Network Management Protocol is a protocol used for exchanging management information
between network devices. Your Device supports SNMP agent functionality, which allows a manager
station to manage and monitor the Device through the network. The Device supports SNMP version
Table 82
Maintenance > RemoteMGMT > FTP
LABEL
DESCRIPTION
Server Port
This displays the service port number for accessing the Device. If the number is grayed
out, it is not editable.
Server Access
Select the interface(s) through which a computer may access the Device using this
service.
Secured Client IP
Address
A secured client is a “trusted” computer that is allowed to communicate with the Device
using this service.
Select
All
to allow any computer to access the Device using this service.
Choose
Range
to just allow the computer(s) with an IP address in the range that you
specify to access the Device using this service.
Apply
Click this to save your changes.
Cancel
Click this to restore your previously saved settings.
Page 200 / 228
Chapter 24 Remote Management
ericom D1000 modem User’s Guide
200
one (SNMPv1) and version two (SNMPv2c). The next figure illustrates an SNMP management
operation.
Figure 137
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 Device). 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.
24.5.1
Configuring SNMP
To change your Device’s SNMP settings, click
Maintenance > RemoteMGMT
>
SNMP
tab. The
screen appears as shown.

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