Actiontec electronic R7000M user manual Is my Modem a firewall?

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Chapter 6 Troubleshooting and FAQs

Everything appears to be setup properly with the Modem, but I can’t con- nect to the Internet. What should I do?

If the Modem is not dialing out, it may need to be power cycled. To do this, unplug the power cord from the Modem. Leave it unplugged for about 30 sec- onds, then plug it back in. The Modem should now be able to dial out.

How many computers can be connected through the Actiontec Dual PC Modem?

The Modem is capable of 252 connections, but we recommended to have no more than 5 connections. As the number of connections increases, the available speed for each computer decreases. Keep in mind that a dial-up connection has a very limited amount of bandwidth.

Is my Modem a firewall?

Yes. The Modem provides its security through the use of a NAT firewall, which acts as a physical barrier between your network and the Internet.

What is NAT and how does it protect my network?

NAT (Network Address Translation) is a level of security which masks the pri- vate IP addresses of the computers on your network with a single public IP address. With NAT, the private IP address of any computer on your network is never transmitted over the Internet.

Which Virtual Private Networking (VPN) protocols are supported?

The Modem does not support VPN.

Can I use Internet firewall or security programs with my network?

Because the Modem uses NAT firewall security, it is not necessary to use any other program (BlackIce Defender, Norton Internet Security, or ZoneAlarm, for example) for security. The use of third party firewall or Internet security soft- ware is not recommended, as certain programs will create problems on a private network.

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Contents Dual PC Modem Table of Contents Limited Warranty File and Printer SharingGlossary Package Contents Introduction1Minimum System Requirements Modem Features Power LightFront Panel Modem LightReset Switch Power PortRear Panel PortTechnical Support Line PortPhone Port Actiontec Electronics, IncSetting Up Modem Connecting the First ComputerPage Setting Up the Modem Page Setting Up the Modem Page Setting Up the Modem Page Configuring the Modem Page Connecting a Second Computer Page Setting Up the Modem Page Basic Setup Basic SetupDOD & Disconnect After Idle… Dial X To Reach an Outside LineDial X To Disable Call Waiting Page Custom Setup Custom SetupDhcp Server Configuration LAN IP AddressDhcp Server Setting the IP Address Range Save ConfigurationBeginning IP Address Ending IP AddressStatus DiagnoseRestore Default Settings Utilities5Upgrade Firmware Active User ListTroubleshooting Frequently Asked Questions TroubleshootingSlow Speed/Dropped Connections Windows 98, 98SE, and MeWindows 2000 and XP Placing the My Network Place Icon on the DesktopFrequently Asked Questions Is the Modem flash-upgradeable? How do I do it?What connection speeds does the Modem support? Does the Modem function as a cable or DSL modem?What is the valid IP range I can use for my home network? How do I find out what IP address my computer is using?What is NAT and how does it protect my network? Is my Modem a firewall?No. The Modem does not support MOH Setting Up Static IP Address Windows 98 and 98 SEPage Do not include the periods they are automatically entered Enter the following numbers in the Subnet mask text box Windows Me Page Do not include the periods they are automatically entered Enter the following numbers in the Subnet mask text box Windows Page Appendix a Setting Up Static IP Address Do not include the periods they are automatically entered 192.168.0.1 Windows XP Appendix a Setting Up Static IP Address Page 198.162.0.4 Page Specifications B LED IndicatorsGeneral Environmental Non-Windows C System Setup ClassicPage Appendix C Non-Windows System Setup Page File and Printer Sharing Windows 98 and MeFile Sharing Page Appendix D File and Printer Sharing Page Appendix D File and Printer Sharing Page Appendix D File and Printer Sharing Printer Sharing Windows Macintosh Glossary ISP Internet Service Provider MAC Media Access Control AddressEthernet Network FirewallWeca Wireless Ethernet Compatibility Alliance Wlan Wireless Local Area NetworkRouter TCP/IP Transmission Control Protocol/Internet ProtocolPage Regulatory Compliance Notices ModificationsClass B Equipment Page Limited Warranty Actiontec Electronics, Inc North Mary Avenue Sunnyvale, CA Limited Warranty