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SMC Networks Router SMCWBR14T User Manual

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Page 101

ADVANCED SETTINGS
4-53
Address Mapping
Network Address Translation (NAT) allows IP addresses used in a private 
local network to be mapped to one or more addresses used in the public, 
global Internet. This feature limits the number of public IP addresses 
required from the ISP and also maintains the privacy and security of the 
local network. We allow one public IP address to be mapped to a pool of 
local addresses.
Click Save Settings to proceed, or Cancel to change your settings. 

Page 102

CONFIGURING THE BAR RICADE
4-54
Virtual Server
Using this feature, you can put PCs with public IPs and PCs with private 
IPs in the same LAN area.
If you configure the Barricade as a virtual server, remote users accessing 
services such as web or FTP at your local site via public IP addresses can 
be automatically redirected to local servers configured with private IP 
addresses. In other words, depending on the requested service (TCP/UDP 
port number), the Barricade redirects the external service...

Page 103

ADVANCED SETTINGS
4-55
Special Applications
Some applications, such as Internet gaming, videoconferencing, Internet 
telephony and others, require multiple connections. These applications 
cannot work with Network Address Translation (NAT) enabled. If you 
need to run applications that require multiple connections, use the 
following screen to specify the additional public ports to be opened for 
each application.
Click the List of well known special applications link for more 
information.
Specify the...

Page 104

CONFIGURING THE BAR RICADE
4-56
Popular applications requiring multiple ports are listed in the Popular 
Applications field. From the drop-down list, choose the application and 
then choose a row number to copy this data into.
Note:Choosing a row that already contains data will overwrite the 
current settings.
For a full list of ports and the services that run on them, see 
www.iana.org/assignments/port-numbers 

Page 105

ADVANCED SETTINGS
4-57
NAT Mapping Table
This page displays the current NAPT (Network Address Port Translation) 
address mappings.
The NAT address mappings are listed 20 lines per page, click the control 
buttons to move forwards and backwards. As the NAT mapping is 
dynamic, a Refresh button is provided to refresh the NAT Mapping Table 
with the most updated values.
The content of the NAT Mapping Table is described as follows:
• Protocol - protocol of the flow.
• Local IP - local (LAN) host’s IP address...

Page 106

CONFIGURING THE BAR RICADE
4-58
Maintenance
Use the Maintenance menu to back up the current settings, to restore 
previously saved settings, or to restore the factory default settings.
Configuration Tools
Check Backup Wireless Router Configuration and click NEXT to save 
your Barricade’s configuration to a file named config.bin on your PC.
You can then check the Restore from saved Configuration file 
(SMCWBR14T_backup.bin) radio button and click NEXT to restore 
the saved backup configuration file.
To...

Page 107

MAINTENANCE
4-59
Firmware Upgrade
Use this screen to update the firmware to the latest version.
Go to www.smc.com to find the latest firmware. Download the firmware 
to your hard drive first. Click Browse... to locate the saved file. After 
locating the new firmware file, click BEGIN UPGRADE. Follow the 
instructions to complete the upgrade. After restarting, check the Status 
page to make sure the device is running the new code. 

Page 108

CONFIGURING THE BAR RICADE
4-60
Reset
Perform a reset from this screen.
 
To perform a system reset, click the Reboot Wireless Router button in 
the screen above. The configurations that you have set previously will not 
be changed back to the factory default settings.
Note:You may also use the blue Reset button on the rear panel of the 
Barricade to perform a reset. Push for one second to perform a 
reboot. All of your settings will remain upon restarting. Push for 
six seconds to return the Barricade...

Page 109

SYSTEM
4-61
System
This section includes all the basic configuration tools for the Barricade, 
such as time settings, password settings, and remote management.
Time Settings
Set the time zone and time server for the Barricade. This information is 
used for log entries and client access control.
Check Enable Automatic Time Server Maintenance to automatically 
maintain the Barricade’s system time by synchronizing with a public time 
server over the Internet. Then configure two different time servers by...

Page 110

CONFIGURING THE BAR RICADE
4-62
Password Settings
Use this page to restrict access based on a password. For security you 
should assign one before exposing the Barricade to the Internet.
Passwords can contain from 3 to12 alphanumeric characters and are case 
sensitive.
Note:If your password is lost, or you cannot gain access to the user 
interface, press the Reset button (colored blue) on the rear panel 
(holding it down for at least six seconds) to restore the factory 
defaults. The default password is...
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