Cisco WRT300N User Manual - Page 35

The Security Tab - Firewall, Internet Filter, Web Filter - reviews

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Wireless-N Broadband Router The Security Tab - Firewall The Firewall screen offers a firewall and filters that block specific Internet data types. Firewall Firewall Protection. A firewall enhances network security and uses Stateful Packet Inspection (SPI) for more detailed review of data packets entering your network. Select Enabled to use a firewall, or Disabled to disable it. Internet Filter Filter Anonymous Internet Requests. When enabled, this feature keeps your network from being "pinged," or detected, by other Internet users. It also hides your network ports. Both make it more difficult for outside users to enter your network. This filter is enabled by default. Select Disabled to allow anonymous Internet requests. 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. Filter Internet NAT Redirection. This feature uses port forwarding to block access to local servers from local networked computers. Select Enabled to filter Internet NAT redirection, or Disabled to disable this feature. Filter IDENT (Port 113). This feature keeps port 113 from being scanned by devices outside of your local network. Select Enabled to filter port 113, or Disabled to disable this feature. Web Filter Proxy. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable access to any WAN proxy servers. To enable proxy filtering, click the checkbox. Java. Java is a programming language for websites. If you deny Java, you run the risk of not having access to Internet sites created using this programming language. To enable Java filtering, click the checkbox. 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 the checkbox. Cookies. A cookie is data stored on your computer and used by Internet sites when you interact with them. To enable cookie filtering, click the checkbox. When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. For more information, click Help. Chapter 5: Configuring the Wireless-N Broadband Router The Security Tab - Firewall Figure 5-24: Security Tab - Firewall 29

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Chapter 5: Configuring the Wireless-N Broadband Router
The Security Tab - Firewall
Wireless-N Broadband Router
The Security Tab - Firewall
The
Firewall
screen offers a firewall and filters that block specific Internet data types.
Firewall
Firewall Protection
. A firewall enhances network security and uses Stateful Packet Inspection (SPI) for more
detailed review of data packets entering your network. Select
Enabled
to use a firewall,
or
Disabled
to disable it.
Internet Filter
Filter Anonymous Internet Requests
. When enabled, this feature keeps your network from being “pinged,” or
detected, by other Internet users. It also hides your network ports. Both make it more difficult for outside users to
enter your network. This filter is enabled by default. Select
Disabled
to allow anonymous Internet requests.
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.
Filter Internet NAT Redirection
. This feature uses port forwarding to block access to local servers from local
networked computers. Select
Enabled
to filter Internet NAT redirection, or
Disabled
to disable this feature.
Filter IDENT (Port 113)
. This feature keeps port 113 from being scanned by devices outside of your local
network. Select
Enabled
to filter port 113, or
Disabled
to disable this feature.
Web Filter
Proxy
. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable
access to any WAN proxy servers. To enable proxy filtering, click the checkbox.
Java
. Java is a programming language for websites. If you deny Java, you run the risk of not having access to
Internet sites created using this programming language. To enable Java filtering, click the checkbox.
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 the checkbox.
Cookies
. A cookie is data stored on your computer and used by Internet sites when you interact with them. To
enable cookie filtering, click the checkbox.
When you have finished making changes to this screen, click the
Save Settings
button to save the changes, or
click the
Cancel Changes
button to undo your changes. For more information, click
Help
.
Figure 5-24: Security Tab - Firewall