NETGEAR DG824M - 802.11b Wireless ADSL Modem, Справочное руководство

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Contents vii
Changing the Administrator Login Timeout ..............................................................5-2
Configuring Basic Firewall Services ...............................................................................5-2
Blocking Keywords, Sites, and Services ..................................................................5-3
How to Block Keywords and Sites ...........................................................................5-3
Rules ..............................................................................................................................5-5
Inbound Rules (Port Forwarding) .............................................................................5-7
Inbound Rule Example: A Local Public Web Server ..........................................5-7
Inbound Rule Example: Allowing Videoconferencing ........................................5-9
Considerations for Inbound Rules .....................................................................5-9
Outbound Rules (Service Blocking) .......................................................................5-10
Outbound Rule Example: Blocking Instant Messenger ...................................5-10
Order of Precedence for Rules ..............................................................................5-12
Services ........................................................................................................................5-13
How to Define Services ..........................................................................................5-13
Setting Times and Scheduling Firewall Services ..........................................................5-14
How to Set Your Time Zone ...................................................................................5-14
How to Schedule Firewall Services ........................................................................5-16
Chapter 6
Managing Your Network
Backing Up, Restoring, or Erasing Your Settings ...........................................................6-1
How to Back Up the Configuration to a File .............................................................6-1
How to Restore a Configuration from a File .............................................................6-2
How to Erase the Configuration ...............................................................................6-2
Upgrading the Gateway’s Firmware ...............................................................................6-2
How to Upgrade the Gateway Firmware ..................................................................6-3
Network Management Information .................................................................................6-4
Viewing Gateway Status and Usage Statistics .........................................................6-4
Viewing Attached Devices ........................................................................................6-8
Viewing, Selecting, and Saving Logged Information ................................................6-8
Selecting What Information to Log ..................................................................6-10
Saving Log Files on a Server .......................................................................... 6-11
Examples of log messages .................................................................................... 6-11
Activation and Administration .......................................................................... 6-11
Dropped Packets ............................................................................................. 6-11
Enabling Security Event E-mail Notification .................................................................6-12