Netgear N600 Wireless Router User Manual
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Troubleshooting151 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 Test the LAN Path to Your Wireless Modem Router You can ping the router from your computer to verify that the LAN path t\ o your router is set up correctly. To ping the router from a PC running Windows 95 or later: 1. From the Windows task bar, click the Start button, and select Run. 2. In the field provided, type ping followed by the IP address of the router, as in this example: ping 192.168.0.1 3. Click OK. You should see a message like this one: Pinging 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: Request timed out If the path is not functioning correctly, you could have one of the foll\ owing problems: • Wrong physical connections - Make sure that the LAN port LED is on. If the LED is off, follow the ins\ tructions in LAN LED Is Off on page 147. - Check that the corresponding link LEDs are on for your network interface\ card and for the hub ports (if any) that are connected to your workstation \ and router. • Wrong network configuration - Verify that the Ethernet card driver software and TCP/IP software are bo\ th installed and configured on your PC or workstation. - Verify that the IP address for your router and your workstation are corr\ ect and that the addresses are on the same subnet.
Troubleshooting152 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 Test the Path from Your Computer to a Remote Device After you verify that the LAN path works correctly, test the path from y\ our PC to a remote device. In the Windows Run screen, type: ping -n 10 IP address where IP address is the IP address of a remote device such as your ISP’s DNS server. If the path is functioning correctly, replies as described in Test the LAN Path to Your Wireless Modem Router on page 151 display. If you do not receive replies: • Check that your PC has the IP address of your router listed as the defau\ lt wireless modem router. If the IP configuration of your PC is assigned by DHCP, th\ is information is not visible in your PC’s Network Control Panel. Verify that the IP ad\ dress of the router is listed as the default wireless modem router. • Check that the network address of your PC (the portion of the IP addres\ s specified by the netmask) is different from the network address of the remote device. • Check that your cable or ADSL modem is connected and functioning. • If your ISP assigned a host name to your PC, enter that host name as the\ account name in the Basic Settings screen. • Your ISP could be rejecting the Ethernet MAC addresses of all but one of\ your PCs. Many broadband ISPs restrict access by allowing traffic only from the MAC add\ ress of your modem, but some additionally restrict access to the MAC address of a sin\ gle PC connected to that modem. In this case, configure your router to clone or\ spoof the MAC address from the authorized PC. Cannot Log In If you cannot log in to the wireless modem router from a computer on you\ r local network, check the following: • The router is plugged in and it is on. • You are using the correct login information. The login name is admin, and the password is password. Make sure that Caps Lock is off when you enter this information. • If you cannot connect wirelessly, try an Ethernet connection and view th\ e router wireless settings and set up your wireless computer with corresponding wireless s\ ettings. • If you are using an Ethernet-connected computer, check the Ethernet conn\ ection between the computer and the router. The LAN LED for the port you are us\ ing on the router should light up to show your connection. • Your computer’s IP address is on the same subnet as the router. If yo\ u are using the recommended addressing scheme, your computer’s address should be in t\ he range 192.168.0.2 to 192.168.0.254. • If the computer IP address is 169.254.x.x, recent versions of Windows an\ d Mac OS generate and assign an IP address when the computer cannot reach a DHCP \ server. The
Troubleshooting153 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 autogenerated addresses are in the range 169.254.x.x. If your IP address\ is in this range, check the connection from the computer to the router and reboot your com\ puter. • If your router’s IP address was changed and you do not know the curre\ nt IP address, clear the router’s configuration to factory defaults as explained in \ Factory Settings on page 156. This sets the router’s IP address to 192.168.0.1. • Make sure that your browser has Java, JavaScript, or ActiveX enabled. If\ you are using Internet Explorer, click Refresh to be sure that the Java applet is loaded. • Try closing the browser and relaunching it. Changes Not Saved If the router does not save the changes you make in the router interface\ , check the following: • When entering configuration settings, always click the Apply button before moving to another screen or tab, or your changes are lost. • Click the Refresh or Reload button in the web browser. The changes might have occurred, but the old settings might be in the web browser’s cache. Firmware Needs to Be Reloaded When you attempt to connect to the Internet, the browser might display a\ message similar to the following one telling you that you need to reload the router’s fi\ rmware. This means a problem has been detected with the router’s firmware. Figure 61. Reload firmware To reload the firmware: 1. If you already have the firmware file on your PC, go directly to step 2. If you do not have the firmware file on your PC, obtain the firmware from the NETGEAR suppo\ rt site at http://www.netgear.com/support through another working Internet connection. 2. Click Browse. 3. Navigate to the firmware file. 4. Click Upgrade. A progress bar displays. The reload takes about 5 minutes to complete.\ When the firmware recovery is complete, the login screen displays so you\ can log in.
Troubleshooting154 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 Incorrect Date or Time Select Security > Schedule to display the current date and time. The wireless modem router uses the Network Time Protocol (NTP) to obtain the current time from o\ ne of several network time servers on the Internet. Each entry in the log is stamped with the \ date and time of day. Problems with the date and time function can include the following: • Date shown is January 1, 2000. This means the router has not yet success\ fully reached a network time server. Check that your Internet access is configured corre\ ctly. If you have just completed configuring the router, wait at least 5 minutes, and chec\ k the date and time again. • Time is off by one hour. The router does not automatically sense dayligh\ t savings time. In the Schedule screen, select the Adjust for Daylight Savings Time check box.
155 A A. Supplemental Information This appendix includes the factory default settings and technical specif\ ications for the N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700, and instructions for wall-mounting the unit. This appendix contains the following sections:• Factory Settings • Technical Specifications
Supplemental Information156 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 Factory Settings You can return the wireless modem router to its factory settings. On the\ bottom of the wireless modem router, use the end of a paper clip or some other similar\ object to press and hold the Restore Factory Settings button for at least 7 seconds. The wireless modem router resets and returns to the factory settings. Your device will return to the factory configuration settings shown in the following table. Table 22. Factory settings description FeatureDefault Behavior Router Login User Login URL http://www.routerlogin.net or http://www.routerlogin.com User Name (case-sensitive) admin Login Password (case-sensitive) password Internet Connection WAN MAC Address Use default address WAN MTU Size 1492 Port Speed AutoSense Local Network (LAN) Lan IP 192.168.0.1 Subnet Mask 255.255.255.0 RIP Direction None RIP Version Disabled RIP Authentication None DHCP Server Enabled DHCP Starting IP Address 192.168.0.2 DHCP Ending IP Address 192.168.0.254 DMZ Disabled Time Zone GMT Time Zone Adjusted for Daylight Saving Time Disabled SNMP Disabled
Supplemental Information157 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 Firewall Inbound (communications coming in from the Internet) Disabled (except traffic on port 80, the HTTP port) Outbound (communications going out to the Internet) Enabled (all) Source MAC filtering Disabled Wireless Wireless Communication Enabled Wi-Fi Network Name (SSID) 2.4 GHz Wireless Network: NETGEAR 5 GHz Wireless Network: NETGEAR-5G Wireless security Disabled Broadcast SSID Enabled Transmission Speed Auto 1 Country/RegionUnited States (in North America; otherwise, varies by region) RF Channel Auto Operating Mode Up to 145 Mbps Data Rate Best Output Power Full Access Point Enabled Authentication Type Pre-Shared Key Wireless Card Access List All wireless stations allowed 1. Maximum wireless signal rate derived from IEEE Standard 802.11 specif\ ications. Actual throughput will vary. Network conditions and environmental factors, including volume of \ network traffic, building materials and construction, and network overhead, lower actual data throughput rat\ e. Table 22. Factory settings description (Continued) FeatureDefault Behavior
Supplemental Information158 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 Technical Specifications Table 23. Technical specifications description Network Protocol and Standards Compatibility Data and routing protocols: TCP/IP, RIP-1, RIP-2, DHCP, PPPoE or PPPoA, RFC 1483 Bridged or Routed Ethernet, and RFC 1577 Classical IP over ATM Power Adapter North America 120V, 60 Hz, input UK, Australia 240V, 50 Hz, input Europe: 230V, 50 Hz, input All regions (output) 12V AC @ 2.5A output Physical Dimensions 6.80 in. x 5.03 in. x 1.28 in. 172.7 mm x 127.7 mm x 32.5 mm Weight 0.61 lbs 0.275 kg Environmental Operating temperature 0° to 40° C (32º to 104º F) Operating humidity 10% to 90% relative humidity, noncondensing Storage temperature –20° to 70° C (-4º to 158º F) Storage humidity 5 to 95% relative humidity, noncondensing Regulatory Compliance Meets requirements of FCC Part 15 Class B; VCCI Class B; EN 55 022 (CISPR 22), Class B Interface Specifications LAN 10BASE-T or 100BASE-Tx, RJ-45 \ WANADSL, Dual RJ-11, pins 2 and 3 T1.413, G.DMT RJ-45 WAN port (gigabit ethernet)
159 B B. NETGEAR VPN Configuration Case study on how to set up a VPN This appendix is a case study on how to configure a secure IPSec VPN tun\ nel from a NETGEAR DGND3700 to a FVL328. This case study follows the VPN Consortium interop\ erability profile guidelines (found at http://www.vpnc.org/InteropProfiles/Interop-01.html). The following topics are discussed:• Configuration Profile • Wireless Modem Router with FQDN to Gateway B • Configuration Summary (Telecommuter Example) • Set Up Client-to-Gateway VPN (Telecommuter Example) • Monitoring the VPN Tunnel (Telecommuter Example) Configuration Profile The configuration in this appendix follows the addressing and configurat\ ion mechanics defined by the VPN Consortium. Gather necessary information before you b\ egin configuration. Verify that the firmware is up to date, and that you have\ all the addresses and parameters to be set on both sides. Check that there are no firewall res\ trictions. Table 24. Wireless modem router to Gateway B profile summary VPN Consortium ScenarioScenario 1 (Identity Using Preshared Secrets) Type of VPN LAN-to-LAN or gateway-to-gateway (not PC/client-to-gateway) Security scheme: IKE with pre-shared secret/key (not certificate based) IP addressing: NETGEAR-Gateway A Static IP address NETGEAR-Gateway B Static IP address
Gateway AWAN IPInternet 10.506.0/24 (DGND3700) LAN IP 10.5.6.1 14.15.16.17WAN IP 22.23.24.25Gateway B LAN IP 172.23.9.1172.23.9.0/24 NETGEAR VPN Configuration 160 N600 Wireless Dual Band Gigabit ADSL2+ Modem Router DGND3700 Figure 62. VPNC example, network interface addressing Step-by-Step Configuration To configure a VPN tunnel: 1. Use the VPN Wizard to configure Gateway A (DGND3700) for a gateway-to-\ gateway tunnel (see Set Up a Gateway-to-Gateway VPN Configuration on page 101), being certain to use appropriate network addresses for the environment. The LAN addresses used in this example are as follows: UnitWAN IPLAN IPLAN Subnet Mask DGND3700 14.15.16.1710.5.6.1255.255.255.0 FVL328 22.13.24.25172.23.9.1255.255.255.0 a.For the connection name, enter toGW_B. b. For the remote WAN’s IP address, enter 22.23.24.25. c. Enter the following: • IP Address. 172.23.9.1 • Subnet Mask. 255.255.255.0 d. In the Summary screen, click Done. 2. Use the VPN Wizard to configure the Gateway B for a gateway-to-gateway t\ unnel (see Set Up a Gateway-to-Gateway VPN Configuration on page 101), being certain to use appropriate network addresses for the environment. a. For the connection name, enter toGW_A. b. For the remote WAN’s IP address, enter 14.15.16.17. c. Enter the following: • IP Address. 10.5.6.1 • Subnet Mask. 255.255.255.0 d. In the Summary screen, click Done.