Motorola SBG900 - Manual (Page 34)

28 SBG900 User Guide
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Configuration: Basic Gateway TCP/IP Wireless USB
4 Select the most secure firewall policy you can:
5 Click Apply to apply your changes.
If you have the need, you can:
•
View the rules for the High, Medium, or Low predefined policy templates or create a custom policy on the
Firewall > POLICY — advanced Page
• Configure a firewall alert on Firewall > ALERT — basic Page and Firewall > ALERT — email Page
•
View the firewall logs on the Firewall > LOGS Page
For information about how the firewall can affect gaming, see “ Gaming Configuration Guidelines ”.
The predefined policies provide outbound Internet access for computers on the SBG900 LAN. The SBG900
firewall uses
stateful inspection to allow inbound responses when there already is an outbound session running
corresponding to the data flow. For example, if you use a web browser, outbound HTTP connections are permitted
on port 80. Inbound responses from the Internet are allowed because an outbound session is established.
When required, you can configure the SBG900 firewall to allow inbound packets without first establishing an
outbound session. You also need to configure a port forwarding entry on the
Gateway > PORT FORWARDING — config Page or a DMZ client on the Gateway > LAN — nat config Page .
High The safest predefined firewall policy template, providing the highest security. Motorola recommends this
setting.
Medium A predefined firewall policy template providing a common configuration having modest risk.
Low A predefined firewall policy template providing minimum security, with a higher risk of intrusions.
Custom You may need to create a custom firewall policy on the Firewall > POLICY — advanced Page . Do not
create a custom policy unless you have the necessary expertise and the need to do so.
None Disables the firewall. To enable easy network setup, it is the default. After you set up your network, use
High, Medium, or Low to improve your security.
After you edit some fields and click Apply, you are warned that you must reboot for your change to take effect.
Rebooting takes 10 to 15 seconds. After rebooting, you must log-in again.