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Netopia 4753 manual Appendix a Troubleshooting, Conﬁguration Problems

Models: 4753

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Troubleshooting A-1

Appendix A

Troubleshooting

This appendix is intended to help you troubleshoot problems you may encounter while setting up and using the Netopia 4753. It also includes information on how to contact Netopia Technical Support.

Important information on these problems can be found in the event histories kept by the Netopia 4753. These event histories can be accessed in the Statistics & Logs screen.

This section covers the following topics:

■“Conﬁguration Problems” on page A-1

■“How to Reset the Netopia 4753 to Factory Defaults” on page A-3

■“Power Outages” on page A-3

■“Technical Support” on page A-4

Conﬁguration Problems

If you encounter problems during your initial conﬁguration process, review the following suggestions before calling for technical support. There are ﬁve zones to consider when troubleshooting initial conﬁguration:

1.The computer’s connection to the Netopia 4753

2.The Netopia 4753’s connection to the telecommunication line(s)

3.The telecommunication line’s connection to your ISP

4.The ISP’s connection to the Internet

5.The Netopia 4753’s connection to the voice provider

If the connection from the computer to the Netopia 4753 was not successful, verify that the following conditions are in effect:

■The Netopia 4753 is turned on.

■An Ethernet cable connects your PC’s Ethernet card or built-in Ethernet port to the Netopia 4753.

■Telnet is available on your PC or Macintosh. (On a PC, it must be speciﬁed in your system path. You can usually ﬁnd the application as “c:\windows\telnet.exe”.)

■Your PC or Macintosh is properly conﬁgured for TCP/IP.

■Your PC or Macintosh has an IP address.

■Your PC or Macintosh has a subnet mask that matches or is compatible with the Netopia 4753’s subnet mask.

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Netopia 4753 manual Appendix a Troubleshooting, Conﬁguration Problems

Contents

Netopia Shdsl Integrated Access Device Part Number Contents Part II Advanced Configuration Contents Vi Administration Guide Contents Snmp Part III Appendixes Administration Guide Part I Getting Started Administration Guide Chapter Introduction Features and CapabilitiesOverview How to Use This Guide Definition of Terms Chapter Setting Up Internet ServicesEndorsements Deciding on an ISP Account Finding an Internet Service ProviderUnique requirements Pricing and supportSmartIP Setting up a Netopia 4753 account Obtaining an IP addressObtaining Information from the ISP Local LAN IP address information to obtainWithout Network Address Translation Find a Location Chapter Making the Physical ConnectionsWhat You Need Telecommunication Installation Cautions Important Safety instructions10/100 Ethernet port Identify the Connectors and Attach the CablesNetopia 4753 Status Lights Administration Guide Chapter Sharing the Connection Dynamic conﬁguration recommended Conﬁguring TCP/IP on Windows-based ComputersStatic conﬁguration optional Add. Repeat this process for the secondary DNS TCP/IP Conﬁguring TCP/IP on Macintosh ComputersTCP/IP or MacTCP Sharing the Connection Administration Guide Chapter Connecting to Your Local Network Readying Computers on Your Local Network Telephone Extension ports Connecting to an IP and Telephone NetworkAdministration Guide Chapter Console-Based Management Conﬁguring Telnet software Connecting through a Telnet SessionSnmp Simple Network Management Protocol. See Snmp on Connecting a Console Cable to Your Device Mac ANSI, VT-100, or VT-200 PC ANSI-BBSNavigating through the Console Screens Administration Guide Easy Setup Console Screens Chapter Easy SetupAccessing the Easy Setup console screens Screen similar to the following Main Menu appears See Appendix A, Troubleshooting, for more suggestionsLLC Snap Quick Easy Setup Connection PathAdministration Guide DSL Line Conﬁguration Voice Easy Setup Easy Setup Proﬁle IP Easy Setup Easy Setup Security Conﬁguration Previous Screen To Main Menu Introduction Chapter Voice ConfigurationVoice Conﬁguration screen appears Configuring the Voice FeaturesVoice Configuration Voice Gateway Administration Guide Part II Advanced Configuration Administration Guide Chapter WAN and System Configuration Setup ConfigurationWAN Conﬁguration Multiple ATM PVC overview Multiple ATM Permanent Virtual Circuit SupportSetup DSL Line Configuration Multiple ATM PVC configurationSelect Display/Change Circuit and press Return Changing a circuit Administration Guide Choosing Add Circuit displays the Add Circuit screen Adding a circuitSelect VC Trafﬁc Statistics Monitoring multiple virtual circuitsATM VC Statistics screen appears Commit Creating a New Connection ProﬁleDatalink PPP/MP Options Data Compression 0.0 Default Profile Default Proﬁle screen appears WAN Default ProﬁleFor details on setting up IP Parameters see IP Setup on IP Parameters Default Proﬁle screenSystem Conﬁguration Screens ATMP/PPTP Default ProﬁleNavigating through the System Conﬁguration screens System Conﬁguration Features Date and time Network Time Protocol Network protocols setupFilter sets IP address servingMM/DD/YY Console conﬁguration Logging Upgrade feature setSnmp Simple Network Management Protocol SecurityPPP PAP Installing the Syslog clientAdministration Guide Chapter IP Setup IP Setup IP Setup IP subnets For example Static routes Viewing static routes Static Routes screen will appearAdding a static route Modifying a static route Rules of static route installationDeleting a static route Main Menu System Configuration IP Address Serving IP Setup Dhcp NetBios Options Serve Bootp Clients IP Address Pools Administration Guide Dhcp NetBIOS Options NetBios Type More Address Serving Options Select Release BootP Leases and press ReturnConﬁguring the IP Address Server options Scroll UP 192.168.1.112 192.168.1.113 Scroll Down Lease Management 192.168.1.101 Dhcp Dhcp Relay Agent IP Address Serving IP Address Serving Mode Connection Proﬁles Easy-PAT List WAN Configuration Administration Guide Chapter Multiple Network Address Translation FeaturesStatic mapping Following is a general description of these featuresPort Address Translation Server listsWAN Network Complex maps Supported trafﬁc MultiNAT Conﬁguration Easy Setup Proﬁle conﬁgurationServer Lists and Dynamic NAT conﬁguration Select Network Address Translation NAT and press Return NAT rules Network Address Translation screen appearsAdd NAT Public Range screen appears ADD NAT MAP Select Public Range Type is Pat Public Range Start Address is Show/Change NAT Map List screen appears Modifying map listsChange NAT MAP Moving maps Dynamic 206.1.1.252 192.168.1.252 Adding Server Lists ADD NAT Server Port Show/Change NAT Server List screen appears Modifying server listsChange NAT Server Deleting a server IP proﬁle parameters Binding Map Lists and Server Lists+--NAT Map List Name Toggle Address Translation Enabled to Yes IP Parameters WAN Default ProﬁleIP Parameters Default Profile NAT NAT AssociationsNAT Associations +NAT Map List Name-+ MultiNAT Conﬁguration Example Enter your ISP-supplied values as shown below Change NAT Public Range ADD NAT MAP Multiple Network Address Translation Administration Guide Chapter Virtual Private Networks VPNs Transit Internetwork Summary About Pptp TunnelsPptp conﬁguration Configuration Add Connection ProfileChap Administration Guide Conﬁguration About IPsec TunnelsDES Encryption Key Authentication Type Commit Cancel Advanced IP Proﬁle Options Encryption Support Interoperation with other featuresMS-CHAP V2 and 128-bit strong encryption ATMP/PPTP Default Answer Proﬁle QuickView VPN QuickViewWindows Dial-Up Networking for VPNWindows NT Windows Windows ME Atmp conﬁguration About Atmp TunnelsAtmp Tunnel Options Atmp Partner IP Address Allowing VPNs through a Firewall Pptp example on Atmp example on Pptp example Change Input Filter EnabledYes ForwardYes Source IP Address Change Output Filter EnabledYes ForwardYes Source IP Address Atmp example Source Port ID Dest. Port Compare Change Output Filter EnabledYes ForwardYes Source IP Address Suggested Security Measures Chapter SecurityUser Accounts Protecting the conﬁguration screens Protecting the Security Options screenTelnet Access What’s a ﬁlter and what’s a ﬁlter set? About Filters and Filter SetsHow ﬁlter sets work Forward Filter priorityPort numbers How individual ﬁlters workﬁltering rule Parts of a ﬁlterPort number comparisons Internet service TCP port161 Aurp AppleTalk 387 Who 513Transmission Control Protocol Other ﬁlter attributesPutting the parts together Internet Control Message ProtocolFiltering example #1 Filtering example #2 Design guidelinesDisadvantages of ﬁlters Working with IP Filters and Filter Sets An approach to using ﬁltersNaming a new ﬁlter set Adding a ﬁlter setNetopia R-Series Router Input and output ﬁlters-source and destinationAdding ﬁlters to a ﬁlter set ADD this Filter NOW Cancel Deleting ﬁlters Viewing ﬁlter setsViewing ﬁlters Modifying ﬁltersDeleting a ﬁlter set Modifying ﬁlter setsSample IP ﬁlter set TCP Icmp UDP Possible modiﬁcations Firewall Tutorial General ﬁrewall terms Basic protocol types Basic IP packet componentsExample TCP/UDP Ports Firewall Logic UDP Port ServiceFirewall design rules AurpImplied rules Logical and functionEstablished connections Example IP ﬁlter set screen Filter basicsThis is an example of the Netopia IP ﬁlter set screen Example network Example ﬁltersExample Example Example LAN IP Filtersets Advanced Security Options Security Databases Security Radius Client Support Radius client configuration1812 Continue Cancel Radius Server is available to authenticate you Administration Guide Quick View Status Overview Chapter Monitoring ToolsISP General statusStatus lights Current statusEvent Histories Statistics & LogsWAN Event History Device Event History Voice Logs Voice Accounting Log IP Routing Table Served IP Addresses General Statistics Network Interface Physical InterfaceSnmp System InformationCommunity strings Snmp Setup screenSnmp traps Deleting IP trap receivers Setting the IP trap receiversViewing IP trap receivers Modifying IP trap receiversChapter Utilities and Diagnostics Ping Receive return Ping packet Stop Ping Trace RouteTelnet Client Disconnect Telnet Console Session Factory DefaultsUpdating ﬁrmware Transferring Conﬁguration and Firmware Files with TftpDownloading conﬁguration ﬁles Uploading conﬁguration ﬁles Transferring Conﬁguration and Firmware Files with Xmodem Downloading conﬁguration ﬁles Restarting the System Part III Appendixes Administration Guide Conﬁguration Problems Appendix a TroubleshootingNetwork problems Console connection problemsPower Outages How to Reset the Netopia 4753 to Factory DefaultsBefore contacting Netopia How to reach usNetopia Bulletin Board Service 1 Technical SupportProduct information can be found in the following Online product informationFAX-Back Administration Guide Appendix B Understanding IP Addressing What is IP?About IP Addressing Subnets and subnet masks Subnet masks Example Using subnets on a Class C IP internetISP Network Network conﬁgurationDistributing IP Addresses Example Working with a Class C subnetBackground 255.255.255.224 Technical note on subnet masking255.255.255.192 Dhcp address serving Netopia 4753 Dhcp server characteristicsServe dynamic WAN clients Using address servingManually distributing IP addresses MacIP servingUnderstanding IP Addressing B-9 Tips and rules for distributing IP addressesDhcp example Internet Nested IP SubnetsWAN Packet header types BroadcastsAdministration Guide Appendix C Binary Conversion Table Decimal Binary Appendix D Further Reading Administration Guide No August Further Reading D-3Administration Guide Environment Appendix E Technical Specifications and Safety InformationPower requirements DescriptionFCC Part 15 Class B Agency ApprovalsRegulatory notices North AmericaDeclaration for Canadian users Technical Speciﬁcations and Safety Information E-3Telecommunication Installation Cautions Netopia 4753 Speciﬁcations Physical interface Data featuresProtocols Quality of serviceManagement Pots support Voice featuresVoice feature support Hardware speciﬁcationsAdministration Guide Glossary Administration Guide Glossary Remapping See network number remapping Glossary Administration Guide Numerics IndexAccount types 2-2 information to obtain Index-2Index-3 Event history 14-5 statistics Index-4Index-5 Index-6 Limited Warranty and Limitation of Remedies Administration Guide