Cisco WUSB54G User Guide - Page 40

The Security Tab - Firewall, Additional Filters, Block WAN Requests

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Wireless-G VPN Broadband Router The Security Tab - Firewall When you click the Security tab, you will see the Firewall screen. The Router's firewall enhances the security of your network. You can also enable a variety of filters to further protect your network. Firewall Firewall Protection. The firewall uses Stateful Packet Inspection (SPI) to check the incoming data transmissions before allowing them to enter your network. To use the Router's firewall, click Enabled. If you do not want firewall protection, click Disabled. Additional Filters Filter Proxy. Use of WAN proxy servers may compromise the Router's security. Denying Filter Proxy will disable access to any WAN proxy servers. To enable proxy filtering, click Enabled. Filter Cookies. A cookie is data stored on your PC and used by Internet sites when you interact with them. To enable cookie filtering, click Enabled. Filter Java Applets. Java is a programming language for websites. If you deny Java Applets, you run the risk of not having access to Internet sites created using this programming language. To enable Java Applet filtering, click Enabled. Filter ActiveX. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having access to Internet sites created using this programming language. To enable ActiveX filtering, click Enabled. Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate computers. Select Enabled to filter multicasting, or Disabled to disable this feature. Block WAN Requests Block Anonymous Internet Requests. This keeps your network from being "pinged" or detected and reinforces your network security by hiding your network ports, so it is more difficult for intruders to work their way into your network. Select Enabled to block anonymous Internet requests, or Disabled to allow anonymous Internet requests. When you have finished making changes to the screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. Help information is shown on the right-hand side of a screen. For additional information, click More. Chapter 6: Configuring the Wireless-G VPN Broadband Router The Security Tab - Firewall Figure 6-20: Security Tab - Firewall spi (stateful packet inspection) firewall: A technology that inspects incoming packets of information before allowing them to enter the network 30

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Chapter 6: Configuring the Wireless-G VPN Broadband Router
The Security Tab - Firewall
Wireless-G VPN Broadband Router
The Security Tab - Firewall
When you click the Security tab, you will see the
Firewall
screen. The Router’s firewall enhances the security of
your network. You can also enable a variety of filters to further protect your network.
Firewall
Firewall Protection
. The firewall uses Stateful Packet Inspection (SPI) to check the incoming data transmissions
before allowing them to enter your network. To use the Router’s firewall, click
Enabled
. If you do not want
firewall protection, click
Disabled
.
Additional Filters
Filter Proxy
. Use of WAN proxy servers may compromise the Router's security. Denying Filter Proxy will disable
access to any WAN proxy servers. To enable proxy filtering, click
Enabled
.
Filter Cookies
. A cookie is data stored on your PC and used by Internet sites when you interact with them. To
enable cookie filtering, click
Enabled
.
Filter Java Applets
. Java is a programming language for websites. If you deny Java Applets, you run the risk of
not having access to Internet sites created using this programming language. To enable Java Applet filtering,
click
Enabled
.
Filter ActiveX
. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not
having access to Internet sites created using this programming language. To enable ActiveX filtering, click
Enabled
.
Filter Multicast
. Multicasting allows for multiple transmissions to specific recipients at the same time. If
multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate
computers. Select
Enabled
to filter multicasting, or
Disabled
to disable this feature.
Block WAN Requests
Block Anonymous Internet Requests
. This keeps your network from being “pinged” or detected and reinforces
your network security by hiding your network ports, so it is more difficult for intruders to work their way into your
network. Select
Enabled
to block anonymous Internet requests, or
Disabled
to allow anonymous Internet
requests.
When you have finished making changes to the screen, click the
Save Settings
button to save the changes, or
click the
Cancel Changes
button to undo your changes. Help information is shown on the right-hand side of a
screen. For additional information, click
More
.
Figure 6-20: Security Tab - Firewall
spi
(stateful packet inspection)
firewall:
A
technology that inspects incoming packets of
information before allowing them to enter the
network