Linksys WRT54GX2 manual Security Tab Firewall, VPN Pass Through, Block WAN Request

Page 32

Wireless-G Broadband Router with SRX200

The Security Tab - Firewall

Use this screen to configure the firewall and VPN pass through settings.

Firewall

Firewall Protection. Enable this feature to employ Stateful Packet Inspection (SPI) for more detailed review of data packets entering your network environment.

Block WAN Request

Block WAN Ping. Enable the Block WAN Ping feature by checking the box beside Block WAN Ping and you can prevent your network from being “pinged,” or detected, by other Internet users. The Block WAN Ping feature also reinforces your network security by hiding your network ports. Both functions of the Block WAN Ping feature make it more difficult for outside users to work their way into your network. This feature is enabled by default.

VPN Pass Through

These settings allow VPN tunnels using PPTP, IPSec, or L2TP protocols to pass through the Router’s firewall.

PPTP Pass through. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow PPTP tunnels to pass through the Router, click Enable.

IPSec Pass through. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec tunnels to pass through the Router, click Enable.

L2TP Pass through. Layer 2 Tunneling Protocol (L2TP) is the method used to enable Point-to-Point sessions via the Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, click Enable.

Change these settings as described here and click the Save Settings button to apply your changes or Cancel Changes to cancel your changes.

Chapter 5: Configuring the Wireless-G Broadband Router

Figure 5-24: Security Tab - Firewall

firewall: a set of related programs located at a network gateway server that protects the resources of a network from users from other networks.

26

The Security Tab - Firewall

Image 32

Contents Wireless- G Word definition How to Use This User GuideCopyright and Trademarks Table of Contents Appendix a Troubleshooting Appendix B Wireless SecurityCommon Problems and Solutions Frequently Asked Questions Appendix C Upgrading Firmware Appendix D Windows HelpRouter’s Side Panel Connect a PC24 Security Tab Firewall Introduction WelcomeWhat’s in this Guide? Wireless-G Broadband Router with SRX200 Planning Your Wireless Network Ad-Hoc versus Infrastructure ModeSsid your wireless network’s name Network TopologyPlanning Your Wireless Network Network Layout Broadband an always-on, fast Internet connection Getting to Know the Wireless-G Broadband Router with SRX200Router’s Ports and Reset Button Wireless Router’s LEDsConnecting the Wireless-G Broadband Router with SRX200 OverviewWall-Mount Option Placement OptionsStand Option Configuring the Wireless-G Broadband Router Isp your internet providerInternet Connection Type Setup Tab Basic SetupInternet Setup Static IP Connection Type Pptp Connection Type Network Setup Optional SettingsRouter IP Packet a unit of data sent over a networkNetwork Address Server Settings Dhcp Time SettingSetup Tab Ddns DdnsSetup Tab MAC Address Clone Mac address the unique address that aSetup Tab Advanced Routing NAT ModeAdvanced Routing Dynamic Routing16 Setup Tab Advanced Routing NAT Mode Routing Table Wireless Tab Basic Wireless Settings Wireless NetworkEncryption encoding data transmitted in a network Wireless Tab Wireless SecurityWireless Security 20 Wireless Tab Wireless Security WEP Wireless Tab Wireless MAC Filter Wireless MAC FilterWireless Tab Advanced Wireless Settings Advanced WirelessWireless-G Broadband Router with SRX200 Security Tab Firewall FirewallVPN Pass Through Block WAN RequestTo create an Internet Access policy Access Restrictions Tab Internet AccessInternet Access Ftp a protocol used to transfer files over a TCP/IP network Url the address of a file located on the InternetPort Range Applications and Gaming Tab Port Range ForwardPort Range Forward Applications and Gaming Tab Port Triggering Applications and Gaming Tab DMZPort Triggering Triggered Range and Forwarded RangeQoS Quality of Service WirelessInternet Access Priority Applications and Gaming Tab QoSSummary Port RangeCancel Changes button Administration Tab Management Router PasswordUPnP MulticastAdministration Tab Log System LogURL Filter Log DoS LogAdministration Tab Diagnostics Ping TestTraceroute Test Ping ParametersAdministration Tab Factory Defaults Administration Tab Firmware UpgradeFactory Defaults Upgrade FirmwareRestore Configuration Administration Tab Config ManagementBackup Configuration Internet Connection Status Tab RouterRouter Information Status Tab Local Network Local NetworkStatus Tab Wireless WirelessSystem Performance Internet/WirelessStatus Tab System Performance Wireless-G Broadband Router with SRX200 Need to set a static IP address on a PC Appendix a TroubleshootingCommon Problems and Solutions For Windows 98SE, Me, 2000, and XP Open a command prompt. For Windows 98SE and Me Application Start and End Protocol IP Address Enabled TCPCan’t get the Internet game, server, or application to work Wireless-G Broadband Router with SRX200 To start over, I need to set the Router to factory default My power LED will not stop flashingNeed to upgrade the firmware My DSL service’s PPPoE is always disconnectingMy wireless-G speed seems to be slow Cannot connect to the InternetFrequently Asked Questions Where is the Router installed on the network?How do I turn on SRX on my router? Is IPSec Pass-Through supported by the Router?Does the Router support ICQ send file? How can I block corrupted FTP downloads?What is DMZ Hosting? What are the advanced features of the Router? What is the Ieee 802.11g standard?What is the Ieee 802.11b standard? Is the Router cross-platform compatible?What Ieee 802.11g features are supported? What Ieee 802.11b features are supported?What is ad-hoc mode? What is infrastructure mode?What is ISM band? What is Spread Spectrum?What is DSSS? What is FHSS? And what are their differences? What is WEP?Have excellent signal strength, but I cannot see my network How do I reset the Router?How do I resolve issues with signal loss? Security Threats Facing Wireless Networks Appendix B Wireless SecuritySecurity Precautions Security Threats Facing Wireless Networks Wireless-G Broadband Router with SRX200 Figure C-1 Upgrade Firmware Appendix C Upgrading FirmwareNetwork Neighborhood/My Network Places Appendix D Windows HelpShared Resources Figure E-1 IP Configuration Screen Windows 98SE or Me InstructionsWindows 2000 or XP Instructions For the Router’s Web-based UtilityAppendix F Glossary Wireless-G Broadband Router with SRX200 Wireless-G Broadband Router with SRX200 Wireless-G Broadband Router with SRX200 Wireless-G Broadband Router with SRX200 Standards Appendix G SpecificationsModel Appendix H Warranty Information Limited WarrantyAppendix I Regulatory Information FCC StatementWireless-G Broadband Router with SRX200 Wireless-G Broadband Router with SRX200 Wireless-G Broadband Router with SRX200 Wireless-G Broadband Router with SRX200 Wireless-G Broadband Router with SRX200 Information section in this Guide Appendix J Contact InformationNeed to contact Linksys?