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Chapter 4.
Network Maintenance
N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Statistics
To view statistics, on the Router Status screen, click
Show Statistics
.
Figure 36.
The following table describes the N300 wireless modem router statistics.
•
To change the polling frequency, enter a time in seconds in the Poll Interval field, and click
Set Interval
.
•
To stop the polling, click
Stop
.
Negotiation
Success or Failed.
Authentication
Success or Failed.
Obtaining IP Address
The IP address assigned to the WAN port by the ADSL Internet Service Provider.
Obtaining Network
Mask
The network mask assigned to the WAN port by the ADSL Internet Service Provider.
Item
Description
System Up Time
The time elapsed since the N300 wireless modem router was last restarted.
Port
The statistics for the WAN (Internet) and LAN (Ethernet) ports. For each port, the screen
displays:
Status
The link status of the port.
TxPkts
The number of packets transmitted on this port since reset or manual clear.
RxPkts
The number of packets received on this port since reset or manual clear.
Collisions
The number of collisions on this port since reset or manual clear.
Tx B/s
The current transmission (outbound) bandwidth used on the WAN and LAN ports.
Rx B/s
The current reception (inbound) bandwidth used on the WAN and LAN ports.
Up Time
The time elapsed since this port acquired the link.
Poll Interval
The intervals at which the statistics are updated in this screen.
Item
Description
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Network Maintenance
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N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Viewing a List of Attached Devices
The Attached Devices table lists all IP devices that the N300 wireless modem router has
discovered on the local network. From the main menu, under Maintenance, select
Attached
Devices
to view the table.
Figure 37.
For each device, the table shows the IP address, NetBIOS host name or device name (if
available), and the Ethernet MAC address. To force the N300 wireless modem router to look
for attached devices, click
Refresh
.
Note:
If the N300 Wireless Modem Router is rebooted, the table data is
lost until the N300 wireless modem router rediscovers the devices.
Managing the Configuration File
The configuration settings of the N300 wireless modem router are stored within the unit in a
configuration file. You can back up (save) this file to your computer, restore it, or reset it to the
factory default settings. From the main menu, select
Maintenance > Backup Settings
.
Figure 38.
The following sections describe the available options.
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Chapter 4.
Network Maintenance
N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Backing Up and Restoring the Configuration
The Restore and Backup options in the Backup Settings screen let you save and retrieve a
file containing your N300 wireless modem router’s configuration settings.
To save your settings, click
Backup
. Your browser extracts the configuration file from the
N300 wireless modem router and prompts you for a location on your computer to store the
file. You can give the file a meaningful name at this time, such as
comcast.cfg.
Tip:
Before saving your configuration file, change the administrator password
to the default,
password
. Then change it again after you have saved the
configuration file. If you forget the password, you will need to reset the
configuration to factory defaults.
To restore your settings from a saved configuration file, enter the full path to the file on your
computer, or click
Browse
to browse to the file. When you have located it, click
Restore
to
send the file to the N300 wireless modem router. The N300 wireless modem router then
reboots automatically.
WARNING!
Do not interrupt the reboot process.
Erasing the Configuration
Under some circumstances (for example, if you move the N300 wireless modem router to a
different network or if you have forgotten the password), you might want to erase the
configuration and restore the factory default settings. After an erase, the N300 wireless
modem router’s user name is
admin
, the password is
password
, the LAN IP address is
192.168.0.1
, and its DHCP server is enabled.
•
To erase the configuration, click the
Erase
button in the Backup Settings screen.
•
To restore the factory default configuration settings when you do not know the login
password or IP address, you must use the
Restore Factory Settings
button on the rear
panel of the N300 wireless modem router (see
Restoring the Factory Configuration
Settings
on page
147).
Running Diagnostic Utilities and Rebooting the Router
The N300 wireless modem router has a diagnostics feature. In the main menu, select
Maintenance > Diagnostics
to display the following screen:
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N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Figure 39.
You can use the Diagnostics screen to perform the following functions from the N300
wireless modem router:
•
Ping an IP address to test connectivity to see if you can reach a remote host.
•
Perform a DNS lookup to test if an Internet name resolves to an IP address to verify that
the DNS server configuration is working.
•
Display the Routing table to identify what other N300 wireless modem routers the N300
wireless modem router is communicating with.
•
Reboot the N300 wireless modem router to enable new network configurations to take
effect or to clear problems with the N300 wireless modem router’s network connection.
Enabling Remote Management Access
The remote management feature allows you to upgrade or check the status of your N300
wireless modem router through the Internet. From the main menu, select
Advanced >
Remote Management
.
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Chapter 4.
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N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2 User Manual
Figure 40.
Note:
Be sure to change the N300 wireless modem router’s default
configuration password to a very secure password. The ideal
password should contain no dictionary words from any language,
and should be a mixture of letters (both uppercase and lowercase),
numbers, and symbols. Your password can be up to 30 characters.
To configure your N300 wireless modem router for remote management:
1.
Select the
Turn Remote Management On
check box.
2.
Under Allow Remote Access By, specify what external IP addresses will be allowed to
access the N300 wireless modem router’s remote management.
Note:
For enhanced security, restrict access to as few external IP
addresses as practical.
•
To allow access from any IP address on the Internet, select
Everyone
.
•
To allow access from a range of IP addresses on the Internet, select
IP Address
Range
.
Enter a beginning and ending IP address to define the allowed range.
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