NETGEAR DGFV338 manual Troubleshooting a TCP/IP Network Using a Ping Utility

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DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual

Configure your firewall to spoof your PC’s MAC address. This can be done in the Basic Settings menu. Refer to “Manually Configuring your ADSL Connection” on page 2-6or “Manually Configuring your Ethernet Connection” on page 2-8.

If your firewall can obtain an IP address, but your PC is unable to load any Web pages from the Internet:

Your PC may not recognize any DNS server addresses.

A DNS server is a host on the Internet that translates Internet names (such as www addresses) to numeric IP addresses. Typically your ISP will provide the addresses of one or two DNS servers for your use. You may configure your PC manually with DNS addresses, as explained in your operating system documentation.

Your PC may not have the firewall configured as its TCP/IP gateway.

Troubleshooting a TCP/IP Network Using a Ping Utility

Most TCP/IP terminal devices and firewalls contain a ping utility that sends an echo request packet to the designated device. The device then responds with an echo reply. Troubleshooting a TCP/IP network is made very easy by using the Ping utility in your PC or workstation.

Testing the LAN Path to Your Firewall

You can ping the firewall from your PC to verify that the LAN path to your firewall is set up correctly.

To ping the firewall from a PC running Windows 95 or later:

1.From the Windows toolbar, click on the Start button and select Run.

2.In the field provided, type Ping followed by the IP address of the firewall, as in this example: ping 192.168.1.1

3.Click on OK.

You should see a message like this one:

Pinging <IP address> with 32 bytes of data

If the path is working, you see this message:

Reply from < IP address >: bytes=32 time=NN ms TTL=xxx

If the path is not working, you see this message:

Troubleshooting

8-5

v1.0, April 2007

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Contents NETGEAR, Inc Statement of Conditions Placement and Range GuidelinesTechnical Support TrademarksFCC Requirements for Operation in the United States FCC StatementEurope EU Declaration of Conformity Português Bestätigung des Herstellers/Importeurs Certificate of the Manufacturer/ImporterVoluntary Control Council for Interference Vcci Statement Terms Additional CopyrightsViii MD5 DGFV338 Product and Publication DetailsContents Chapter Wireless Configuration Chapter Virtual Private Networking Chapter LAN Configuration Appendix a Default Settings and Technical Specifications Xvi Conventions, Format and Scope About This ManualHow to Print this Manual How to Use This ManualXix Page Chapter Introduction Key Features of the Netgear ProSafe DGFV338Full Routing on Both the Adsl and 10/100 WAN Port Powerful, True Firewall with Content FilteringSecurity Virtual Private Networking VPNAutosensing Ethernet Connections with Auto Uplink Extensive Protocol Support Easy Installation and ManagementSystem Requirements Maintenance and SupportHardware Description Package ContentsNos LEDs Activity Description Object DescriptionsRouter Rear Panel Enter http//192.168.1.1 as the URL Router Login Factory DefaultsPlacement of your Netgear ProSafe DGFV338 Chapter Basic Installation and Configuration Using Adsl Microfilters optional Logging in and Configuring your Internet Connection Configuring Your Internet Connection using Auto Detect V1.0, April Internet Service Connections Manually Configuring your Adsl ConnectionEnter your Internet IP Address Manually Configuring your Ethernet Connection V1.0, April Enter your Internet IP Address V1.0, April V1.0, April V1.0, April Configuring the WAN Mode Use Dedicated WAN port V1.0, April On the Internet Configuring Dynamic DNS If NeededV1.0, April DynDNS Service Screen Traffic Meter Adsl Programming the Traffic MeterParameter Description Traffic Meter ParametersV1.0, April Implementing Wireless Security Chapter Wireless ConfigurationLUHOHVVDWD 6HFXULW\2SWLRQV Understanding Wireless Settings Wireless Access Point Wireless LANsV1.0, April Access Control List Advanced Wireless Router Settings Wireless Advanced OptionsWPA-PSK or WPA2-PSK Pre-Shared Key WEP and WPA/WPA2 Wireless Security Check List FormConfiguring Your Wireless Settings Configuring WEP V1.0, April Configuring WPA-PSK Configuring WPA2-PSK Configuring WPA-PSK and WPA2-PSK Configuring WPA with Radius Configuring WPA2 with Radius Configuring WPA and WPA2 with Radius Restricting Wireless Access by MAC Address V1.0, April V1.0, April Using Rules to Block or Allow Specific Kinds of Traffic Firewall Protection and Content Filtering OverviewAbout Service Based Rules Outbound Rules Service Blocking V1.0, April V1.0, April V1.0, April Outbound Rule Example Blocking Instant Messenger Inbound Rules Port ForwardingV1.0, April V1.0, April V1.0, April V1.0, April Inbound Rule Example a Local Public Web Server Inbound Rule Example One-to-One NAT Mapping V1.0, April Inbound Rule Example Exposed Host Considerations for Inbound Rules Order of Precedence for Rules Customized ServicesV1.0, April Outbound Rules Add Screen Quality of Service QoS PrioritiesWAN Security Checks Attack ChecksManaging Groups and Hosts V1.0, April V1.0, April Groups and Hosts Blocking Internet SitesV1.0, April V1.0, April Enabling Source MAC Filtering Setting up Port Triggering V1.0, April Port triggering Setting a Schedule to Block or Allow Specific Traffic Event Logs and Alerts V1.0, April V1.0, April Security and Administrator Management V1.0, April IP addressing requirements for VPNs in dual WAN port systems Dual WAN Port SystemsSetting up a VPN Connection using the VPN Wizard V1.0, April V1.0, April IKE Policy VPN Tunnel PoliciesIKE Policy Table Managing IKE PoliciesManaging VPN Policies VPN PolicyVPN Policy Table VPN Tunnel Connection StatusCreating a VPN Connection Between FVX538 and DGFV338 Configuring the ProSafe DGFV338V1.0, April V1.0, April V1.0, April V1.0, April Configuring the FVX538 Testing the Connection Configuring the DGFV338Creating a VPN Client Connection VPN Client to DGFV338 V1.0, April Configuring the VPN Client Todgfv Left frame, select Security Policy Todgfv Testing the Connection Certificate Authorities Generate Self Certificate Request, enter the required data Generating a Self Certificate RequestV1.0, April Managing your Certificate Revocation List CRL Uploading a Trusted CertificateUpload Extended Authentication Xauth ConfigurationConfiguring Xauth for VPN Clients V1.0, April User Database Configuration Radius Client Configuration Enter the Primary Radius Server IP address Mode Config Operation Manually Assigning IP Addresses to Remote Users ModeConfigConfiguring the ProSafe DGFV338 V1.0, April V1.0, April Configuring the ProSafe VPN Client for ModeConfig V1.0, April V1.0, April V1.0, April V1.0, April Performance Management Wireless Firewall Features That Reduce TrafficService Blocking Block Sites Wireless Firewall Features That Increase Traffic Source MAC FilteringPort Forwarding V1.0, April Using QoS to Shift the Traffic Mix Port TriggeringVPN Tunnels Administrator and Guest Access Authorization Changing the Passwords and Login Time-outTools for Traffic Management Enabling Remote Management Access Under Allow Remote Management, check the Yes radio box Https//172.21.4.18080 Command Line InterfaceTraffic Limits Reached Event AlertsRouter Status MonitoringRouter Status WAN Ports Internet Traffic V1.0, April Known PCs and Devices LAN Ports and Attached DevicesKnown PCs and Devices table Dhcp LogFirewall Security Port Triggering StatusPort Triggering Status data V1.0, April VPN Tunnels VPN Status Data Using a Snmp ManagerV1.0, April Diagnostics Diagnostics Configuration File Management Settings Backup and Firmware UpgradeBackup and Restore Settings Click default Router Upgrade To upgrade router software Setting the Time ZoneV1.0, April Using the Firewall as a Dhcp server Chapter LAN ConfigurationSecurity and Firewall Protection Configuring the LAN Setup OptionsUsing Address Reservation Configuring Multi Home LAN IPs V1.0, April Gateway IP and DNS server IPs Adding or Editing a Static Route Configuring Static RoutesRouting Information Protocol RIP V1.0, April Static Route Example Enabling Universal Plug and Play UPnPSettings Description UPnP Portmap Table settingsV1.0, April Basic Functions Power LED Not OnTroubleshooting the Web Configuration Interface LEDs Never Turn OffLAN or Internet Port LEDs Not On Troubleshooting the ISP Connection V1.0, April Testing the LAN Path to Your Firewall Troubleshooting a TCP/IP Network Using a Ping UtilityPing -n 10 IP address Testing the Path from Your PC to a Remote DeviceProblems with Date and Time Restoring the Default Configuration and PasswordV1.0, April Table A-1. Default Configuration Settings Default Factory SettingsFeature Default Behavior Table A-2. Technical Specifications Technical SpecificationsSpecification Description Electromagnetic Emissions Appendix B Related Documents V1.0, April Numerics IndexIndex-2 Index-3 Index-4 Index-5 Index-6 Index-7 Index-8
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