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Page 151 / 160 Scroll up to view Page 146 - 150
Chapter 27
Remote Management
151
If you want your device to respond to pings and requests for unauthorized services, you
will also need to configure the firewall accordingly by disabling SPI.
Figure 93
Maintenance > Remote MGMT > ICMP
Table 83
Maintenance > Remote MGMT > ICMP
LABEL
DESCRIPTION
Respond to Ping
on
The Router will not respond to any incoming Ping requests when
Disable
is selected.
Select
LAN
to reply to incoming LAN Ping requests.
Select
WAN
to reply to incoming
WAN Ping requests. Otherwise select
LAN & WAN
to reply to both incoming LAN and
WAN Ping requests.
Secured Client IP
Address
A secured client is a “trusted” computer that is allowed to send Ping requests to the
Router.
Select
All
to allow any computer to send Ping requests to the Router.
Choose
Range
to just allow the computers with an IP address in the range that you
specify to send Ping requests to the Router.
27.8
SSH Screen
You can use Secure SHell (SSH) to securely access theRouter’s command line interface. Specify
which interfaces allow SSH access and from which IP address the access can come. SSH is a secure
communication protocol that combines authentication and data encryption to provide secure
encrypted communication between two hosts over an unsecured network.
Page 152 / 160
Chapter 27
Remote Management
152
Click
Maintenance > Remote MGMT
>
SSH
tab to display the screen as shown.
Figure 94
Maintenance > Remote MGMT > SSH
Table 84
Maintenance > Remote MGMT > SSH
LABEL
DESCRIPTION
Server Port
This displays the service port number for accessing the Router. If the number is grayed
out, it is not editable.
Server Access
Select the interfaces through which a computer may access the Router 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.
Secured Client IP
Address
A secured client is a “trusted” computer that is allowed to communicate with the
Router using this service.
Select
All
to allow any computer to access the Router using this service.
Choose
Range
to just allow the computers with an IP address in the range that you
specify to access the Router using this service.
Page 153 / 160
28
Chapter
Chapter 28
Diagnostic
153
C
HAPTER
28
Chapter 28
Diagnostic
28.1
The Diagnostic Screen
Ping and traceroute help check availability of remote hosts and also help troubleshoot network or
Internet connections. Click
Maintenance > Diagnostic
to open the
Diagnostic
screen shown next.
Figure 95
Maintenance > Diagnostic
Table 85
Maintenance > Diagnostic
LABEL
DESCRIPTION
Ping
Type the IP address of a computer that you want to ping in order to test a connection.
Click
Ping
and the ping statistics will show in the diagnostic .
PingV6
Click this to ping the IPv6 address that you entered.
TraceRouteV6
Click this to show the path that packets take from the system to the IPv6 address that you
entered.
TraceRouteV4
Click this button to perform the traceroute function. This determines the path a packet
takes to the specified host.
Page 154 / 160
29
Chapter
Chapter 29
Troubleshooting
154
C
HAPTER
29
Chapter 29
Troubleshooting
29.1 Overview
This chapter offers some suggestions to solve problems you might encounter. The potential
problems are divided into the following categories.
•
Power, Hardware Connections, and LEDs
•
Router Access and Login
•
Internet Access
•
Wireless Internet Access
•
Phone Calls and VoIP
•
UPnP
•
UPnP
29.2 Power, Hardware Connections, and LEDs
The Router does not turn on. None of the LEDs turn on.
1
Make sure the Router is turned on.
2
Make sure you are using the power adaptor or cord included with the Router.
3
Make sure the power adaptor or cord is connected to the Router and plugged in to an appropriate
power source. Make sure the power source is turned on.
4
Turn the Router off and on.
5
If the problem continues, contact the vendor.
One of the LEDs does not behave as expected.
1
Make sure you understand the normal behavior of the LED. See
Section 1.3 on page 10
.
2
Check the hardware connections. See
Section 1.2 on page 9
.
Page 155 / 160
Chapter 29
Troubleshooting
155
3
Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4
Turn the Router off and on.
5
If the problem continues, contact the vendor.
29.3 Router Access and Login
I forgot the IP address for the Router.
1
The default IP address is 192.168.1.1.
2
If you changed the IP address and have forgotten it, you might get the IP address of the Router by
looking up the IP address of the default gateway for your computer. To do this in most Windows
computers, click
Start > Run
, enter
cmd
, and then enter
ipconfig
. The IP address of the
Default
Gateway
might be the IP address of the Router (it depends on the network), so enter this IP address
in your Internet browser.
3
If this does not work, you have to reset the device to its factory defaults. See
Section 1.2 on page 9
.
I forgot the password.
1
The default admin password is
1234
and the default user password is
1234
.
2
If you can’t remember the password, you have to reset the device to its factory defaults. See
Section
1.2 on page 9
.
I cannot see or access the
Login
screen in the web configurator.
1
Make sure you are using the correct IP address.
•
The default IP address is 192.168.1.1.
•
If you changed the IP address (
Section 8.1 on page 60
), use the new IP address.
•
If you changed the IP address and have forgotten it, see the troubleshooting suggestions for
I
forgot the IP address for the Router.
2
Check the hardware connections, and make sure the LEDs are behaving as expected. See
Section 1.2
on page 9
.
3
Make sure your Internet browser does not block pop-up windows and has JavaScript and Java
enabled.
4
Reset the device to its factory defaults, and try to access the Router with the default IP address. See
Section 1.2 on page 9
.

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