SMC Networks Router SMCWBR14T User Manual

							MAKING CONFIGURATION CHANGES
4-23
Static IP
If your Service Provider has assigned a fixed IP address, enter the assigned 
IP address, subnet mask and the gateway address on this screen.
Click Save Settings to proceed, or Cancel to change your settings. 
						

							CONFIGURING THE BAR RICADE
4-24
Wireless
The Barricade can be quickly configured for roaming clients by setting the 
Service Set Identifier (SSID) and channel number. It supports data 
encryption and client filtering.
 
To use the wireless feature, check the Enable check box and click Save 
Settings. After clicking Save Settings, you will be brought directly to the 
wireless settings screen in the Security section. See “Wireless” on page 4-
24 for details on how to configure wireless security. 
						

							MAKING CONFIGURATION CHANGES
4-25
Channel and SSID
Enter your wireless network settings on this screen. You must specify a 
common radio channel and SSID (Service Set ID) to be used by the 
Barricade and all of its wireless clients. Be sure you configure all of its 
clients to the same value. For security purposes, you should change the 
default SSID immediately.
Parameter Description
Wireless Network Name 
(SSID)The Service Set ID (SSID) is the name of your 
wireless network. The SSID must be the same on 
the Barricade and all of its wireless clients.
Broadcast Wireless Network 
NameEnable or disable the broadcasting of the SSID. If 
you disable broadcast of the SSID, only devices 
that have the correct SSID can connect. This 
nullifies the wireless network “discovery” feature 
of some products such as Windows XP. 
(Default: Enable)
Wireless Mode This device supports the following modes; 11g 
only, 11b only, 11b/g mixed mode, Super G-
Dynamic Turbo and Super G-Static Turbo.
Wi-Fi  Channel  Number This device supports the following modes 11g only, 
11b only, 11b/g mixed mode, Super G-Dynamic 
Turbo and Super G-Static Turbo.
Extend Range Extends the range of the Barricade.
(Default: Disable) 
						

							CONFIGURING THE BAR RICADE
4-26
WDS
The Wireless Distribution System (WDS) provides a means to extend the 
range of a Wireless Local Area Network (WLAN). WDS allows the 
Barricade to establish a direct link to other wireless base stations and 
allows clients to roam freely within the area covered by the WDS.
Click Save Settings to proceed, or Cancel to change your settings.
Parameter Description
SSID The Service Set ID (SSID) is the name of your 
wireless network. The SSID must be the same on 
the Barricade and all of its wireless clients.
Channel This device supports the following modes 11g only, 
11b only, 11b/g mixed mode, Super G-Dynamic 
Turbo and Super G-Static Turbo.
MAC  Address The media access control address (MAC address) is 
a unique identifier attached to each wireless base 
station.
Security Displays the security mechanism in use.
Enable WDS Enables the WDS feature. When enabled, up to 4 
WDS links can be set by specifying their Wireless 
MAC addresses in the MAC address table. Make 
sure the same channel is in use on all devices. 
(Default: Disable) 
						

							SECURITY
4-27
Security
The first menu item in the Security section is Firewall. The Barricade 
provides a stateful inspection firewall which is designed to protect against 
Denial of Service (DoS) attacks when activated. Its purpose is to allow a 
private local area network (LAN) to be securely connected to the Internet.
The second menu item is Wireless. This section allows you to configure 
wireless security settings according to your environment and the privacy 
level required.
 
To configure your firewall settings, click Firewall in the left-hand menu. 
						

							CONFIGURING THE BAR RICADE
4-28
Firewall
The Barricade’s firewall inspects packets at the application layer, maintains 
TCP and UDP session information including time-outs and the number of 
active sessions, and provides the ability to detect and prevent certain types 
of network attacks.
Network attacks that deny access to a network device are called Denial-of-
Service (DoS) attacks. DoS attacks are aimed at devices and networks with 
a connection to the Internet. Their goal is not to steal information, but to 
disable a device or network so users no longer have access to network 
resources.
The Barricade protects against the following DoS attacks: IP Spoofing, 
Land Attack, Ping of Death, IP with zero length, Smurf Attack, UDP port 
loopback, Snork Attack, TCP null scan, and TCP SYN flooding. (See page 
4-46 for details.)
The firewall does not significantly affect system performance, so we advise 
leaving it enabled to protect your network.
Enable the firewall feature, and click Save Settings to proceed. 
						

							SECURITY
4-29
Schedule Rule
The first item listed in the Firewall section is Schedule Rule. You may filter 
Internet access for local clients based on rules. Each access control rule 
may be activated at a scheduled time. Define the schedule on the Schedule 
Rule page, and apply the rule on the Access Control page.
You may filter Internet access for local clients based on rules.
Each access control rule may be activated at a scheduled time. First, define 
the schedule on the Schedule Rule page, then apply the rule on the Access 
Control page.
1. To add a new rule, click Add Schedule Rule. Proceed to the following 
page. 
						

							CONFIGURING THE BAR RICADE
4-30
Edit Schedule Rule
2. Define the appropriate settings for a schedule rule (as shown on the 
following screen).
3. Upon completion, click OK to save your schedule rules, and then click 
Save Settings to make your settings to take effect.
Each access control rule may be activated at a scheduled time. First, define 
the schedule on the Schedule Rule page, then apply the rule on the Access 
Control page. 
						

							SECURITY
4-31
Access Control
Used in conjunction with the Schedule Rule screen, the Access Control 
screen allows users to define the outgoing traffic permitted or 
not-permitted. The default is to permit all outgoing traffic.
The Barricade can also limit the access of hosts within the local area 
network (LAN). The MAC Filtering Table allows the Barricade to enter up 
to 32 MAC addresses that are not allowed access to the WAN port.
1. Click Add PC on the Access Control screen.
2. Define the appropriate settings for client PC services (as shown on the 
following screen).
3. Click OK and then click Apply to save your settings.
The following items are displayed on the Access Control screen:
Parameter Description
Enable Filtering Function Enables or disables the filtering function.
Normal Filtering Table 
(up to 10 computers)Displays the IP address (or an IP address range) 
filtering table. 
						

							CONFIGURING THE BAR RICADE
4-32
Access Control Add PC
Define the access control list in this page. The settings in the screen shot 
below will block all email sending and receiving during weekdays (except 
Friday).
 
Define the appropriate settings for client PC services (as shown above). At 
the bottom of this screen, you can set the scheduling function. You can set 
this function to Always Blocking or to whatever schedule you have 
defined in the Schedule Rule screen. Click OK to save your settings. The 
added PC will now appear in the Access Control page.
For the URL/keyword blocking function, you will need to configure the 
URL address or blocked keyword on the Parental Control page first. Click 
Parental Control to add to the list of disallowed URL’s and keywords.
To enable scheduling, you also need to configure the schedule rule first. 
See “Schedule Rule” on page 4-29. Click Schedule Rule to set the times 
for which you wish to enforce the rule.