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Netopia R2020 manual Encryption support

Models: R2020

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Virtual Private Networks 9-7

Ordinarily, Ping is an excellent troubleshooting tool, but it will not be effective in this circumstance. Instead, use another TCP- or UDP-based network service for troubleshooting. Since the Netopia Router is capable of serving Telnet and HTTP, we recommend using these services instead of Ping.

Encryption support

Encryption is a method for altering user data into a form that is unusable by anyone other than the intended recipient. The recipient must have the means to decrypt the data to render it usable to them. The encryption process protects the data by making it difﬁcult for any third party to get at the original data.

Netopia PPTP is fully compatible with Microsoft Point-to-Point Encryption (MPPE) data encryption for user data transfer over the PPTP tunnel. Microsoft Windows NT Server provides MPPE encryption capability only when Microsoft Challenge Handshake Authentication Protocol (MS-CHAP) is enabled. Netopia complies with this feature to allow MPPE only when MS-CHAP is negotiated. MS-CHAP and MPPE are user-selectable options in the PPTP Tunnel Options screen. If either the client or the server side speciﬁes encryption, then encryption becomes mandatory for both.

Netopia’s ATMP implementation supports Data Encryption Standard (DES) data encryption for user data transfer over the ATMP tunnel between two Netopia routers. The encryption option, none or DES, is a selectable option in the ATMP Tunnel Options screen.

Notes:

■Do not set your NT Server to enforce MS-CHAP V2, as the router does not currently support MS-CHAP V2.

■Do not set your NT Server to “Require strong data encryption” in RAS Network Conﬁguration, as the router does not currently support 128-bit encryption.

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Netopia R2020 manual Encryption support

Contents

Netopia¨ R2020 Dual Analog Router Part Number Contents Part II Advanced Configuration Contents Multiple Network Address Translation and IP Setup Aurp Snmp Contents Part III Appendixes Contents User’s Reference Guide Page Small Ofﬁce connection to the Internet Small Ofﬁce connection to the Internet Direct Connection to a Corporate Ofﬁce Telecommuter Conﬁgured to accept incoming dial-up connections Page Part I Getting Started User’s Reference Guide Chapter Introduction Features and capabilitiesOverview How to use this guide Find a location Chapter Making the Physical ConnectionsWhat you need Ethernet Telco Identify the connectors and attach the cablesTelco Line ports Netopia R2020 Dual Analog Router Back Panel PortsMaking the Physical Connections Netopia R2020 LED front panel Netopia R2020 Dual Analog Router Status LightsInstalled and properly conﬁgured. See Chapter Setting up your Router with the SmartStart WizardBefore running SmartStart User’s Reference Guide SmartStart Wizard conﬁguration screens Setting up your Router with the SmartStart WizardEasy or Advanced options screen. You can choose either Easy optionSetting up your Router with the SmartStart Wizard User’s Reference Guide Setting up your Router with the SmartStart Wizard Advanced option Dynamic conﬁguration recommended Conﬁguration tab Static conﬁguration optional Add. Repeat this process for the secondary DNS TCP/IP Conﬁguring TCP/IP on Macintosh computersTCP/IP or MacTCP Dynamic conﬁguration using MacIP optional User’s Reference Guide Readying computers on your local network Chapter Connecting Your Local Area NetworkUser’s Reference Guide 10Base-T Connecting to an Ethernet networkAdding an external modem Connecting to a LocalTalk network Wiring guidelines for PhoneNET cabling Chapter Console-based Management Snmp Simple Network Management Protocol. See Snmp on Connecting through a Telnet sessionConﬁguring Telnet software Connecting a local terminal console cable to your routerNavigating through the console screens Easy Setup console screens Chapter Easy SetupHow to access the Easy Setup console screens Screen similar to the following appears Easy Setup proﬁle Beginning Easy SetupIP Easy Setup Ethernet IP Address 192.168.1.1 Ethernet Subnet Mask Easy Setup Security Part II Advanced Configuration User’s Reference Guide Chapter WAN and System Configuration WAN Creating a new Connection ProﬁleDatalink PPP/MP Options Data Compression IPX Profile Parameters Remote IPX Network Viewing or editing connection proﬁles Change Connection Profile Profile Name System Conﬁguration screens Deleting connection proﬁlesNavigating through the System Conﬁguration screens System Conﬁguration featuresMaximum Packet Size 1500 Channel Usage Dynamic Bandwidth AllocationFilter Sets Firewalls Network Protocols SetupDate and Time IP Address ServingConsole Conﬁguration Snmp Simple Network Management Protocol Upgrade Feature SetSecurity Logging Installing the Syslog clientPPP MP Specifying telephone connections Chapter Managing Data CallsInternal Modem Conﬁguration screen appears Atdt Auxiliary serial port HD-15 female OFFHow the Default Answer Proﬁle works Default Answer Proﬁle for Dial-in ConnectionsCustomizing the default proﬁle PAP Call acceptance scenarios Scheduled connections Adding a scheduled connection Viewing scheduled connectionsADD Scheduled Connection Cancel Set Once-Only Schedule Set Weekly ScheduleModifying a scheduled connection Web-based management pages Connection MeteringDeleting a scheduled connection System Information Activity for your Frame relay DLCIs Accounting for switched interfaces onlyConnection Status Connect/Disconnect Router Budget Configuration Connection Budgets Connection Budget Configuration Budget Statistics WAN Event History Event History pagesDevice Event History Console-based management screens Connection Budget Setup Name Use Connection Profile Connection Budget Statistics Date and time setting Chapter Virtual Private Networks Tr ans it In tern etw ork Summary About Pptp tunnels on About Atmp Tunnels onConfiguration Add Connection Profile Pptp ConfigurationAbout Pptp tunnels Chap Local WAN IP Address 0.0 Remote IP Address Encryption support VPN Default Answer Profile QuickView VPN QuickViewDial-Up Networking for VPN Installing Dial-Up NetworkingCreating a new Dial-Up Networking profile Configuring a Dial-Up Networking profile Virtual Private Networks Windows 95 VPN installation Installing the VPN ClientWindows 98 VPN installation Connecting using Dial-Up Networking About Atmp Tunnels Atmp ConfigurationDES Local WAN IP Address 0.0 Remote IP Address Pptp Example Allowing VPNs though a firewallSelect Display/Change Input Filter Change Output Filter EnabledYes ForwardYes Source IP Address Atmp Example Source Port ID Dest. Port Compare Change Output Filter EnabledYes ForwardYes Source IP Address Chapter Multiple Network Address Translation and IP Setup User’s Reference Guide Supported traffic FeaturesNAT conﬁguration Easy Setup ProfileIP setup 255.255.255.0 NAT rules ADD NAT MAP Add NAT Map mymap Modifying map lists Show/Change NAT Map List screen appears Change NAT Map screen appears Moving mapsAdding server lists ADD NAT Server Modifying server lists Show/Change NAT Server List screen appears Deleting a server IP profile parameters Binding Map Lists and Server Lists+--NAT Map List Name Configuration Default Answer Profile Default Answer ProfileDefault Answer Proﬁle screen appears Associations NAT AssociationsNAT Associations +NAT Map List Name-+ MultiNAT Configuration Example Previous Screen Enter your ISP-supplied values as shown belowChange NAT Public Range ADD NAT MAP Firmware upgrades and NAT IP subnets For example Static routes Viewing static routes Adding a static route Modifying a static route Rules of static route installationDeleting a static route Main Menu System Configuration IP Address Serving Client Default Gateway Dhcp NetBIOS Options NetBios Type To release these addresses, select Lease Management Served IP Addresses screen appearsDhcp Relay Agent MacIP Kip Forwarding Options You have ﬁnished your IP Setup IPX Features Chapter IPX SetupIPX Deﬁnitions Internetwork Packet Exchange IPXIPX address Service Advertising Protocol SAPSocket Routing Information Protocol RIPIPX setup NetBIOSIPX Spooﬁng Default Gateway Address IPX in the answer proﬁle Menu Configuration Default Answer ProfileOff Main Menu Statistics & Logs IPX routing tablesUser’s Reference Guide AppleTalk networks Chapter AppleTalk SetupAppleTalk protocol AT Routing Table Routers and seeding MacIPInstalling AppleTalk Upgrade Feature Set Conﬁguring AppleTalk EtherTalk SetupLocalTalk Setup Viewing Aurp partners Aurp setupAurp Free Trade Zone Modifying an Aurp partner Adding an Aurp partnerReceiving Aurp connections Deleting an Aurp partnerConﬁguring Aurp Options AppleTalk Setup User’s Reference Guide Quick View status overview Chapter Monitoring ToolsGeneral Status Status lights Current StatusGeneral Statistics Statistics & LogsGeneral Statistics WAN Connection Statistics Event HistoriesWAN Event History Current Date Routing Tables IPX routing table IP routing tableAppleTalk routing table IPX Sap Bindery tableServed IP Addresses IP Address Lease Management screen appears Snmp Community strings Snmp Setup screenSnmp traps Viewing IP trap receivers Setting the IP trap receiversModifying IP trap receivers Deleting IP trap receiversUser’s Reference Guide Suggested security measures Chapter SecurityProtecting the Security Options screen User accountsProtecting the conﬁguration screens Dial-in Console Access Telnet access Enable SmartStart/Web ServerAbout ﬁlters and ﬁlter sets What’s a ﬁlter and what’s a ﬁlter set?Filter priority How ﬁlter sets workPacket First filter Match? Yes ﬁlter’s actions How individual ﬁlters workﬁltering rule Parts of a ﬁlter161 Aurp AppleTalk 387 Internet service TCP portWho 513 Port number comparisonsInternet Control Message Protocol Putting the parts togetherTransmission Control Protocol User Datagram ProtocolFiltering example #2 Filtering example #1Disadvantages of ﬁlters Design guidelinesWorking 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 Viewing ﬁlters Viewing ﬁlter setsModifying ﬁlters Deleting ﬁltersDeleting a ﬁlter set Modifying ﬁlter setsSample IP ﬁlter set TCP Icmp UDP Possible modiﬁcations User’s Reference Guide IPX ﬁlters Main Menu System Configuration Filter Sets FirewallsViewing and modifying packet ﬁlters IPX packet ﬁltersAdding a packet ﬁlter Deleting a packet ﬁlter IPX packet ﬁlter setsViewing and modifying packet ﬁlter sets Adding a packet ﬁlter setADD Filter SET NOW Cancel Deleting a packet ﬁlter set IPX SAP ﬁltersViewing and modifying SAP ﬁlters Adding a SAP ﬁlter Deleting a SAP ﬁlter IPX SAP ﬁlter setsViewing and modifying SAP ﬁlter sets Adding a SAP ﬁlter setDeleting a SAP ﬁlter set Firewall tutorial General Firewall TermsBasic Protocol Types Basic IP Packet ComponentsExample TCP/UDP Ports Firewall Logic Firewall design rulesBinary Representation Implied Rules Logical ANDingEstablished Connections Example IP Filter Set Screen Filter BasicsThis is an example of the Netopia IP ﬁlter set screen Example Network Example FiltersExample Example Example Using the SecurID token card Token Security AuthenticationKey Security Authentication Features of the Netopia R2020 Securing network environmentsConﬁguring for security authentication Security authentication componentsEstablishing a dial-on-demand DOD connection call Connecting using security authenticationCurrent Connection Status Establishing a manual connection call Chapter Utilities and Diagnostics Start Ping PingUtilities and Diagnostics Stop Ping TimeTrace Route Telnet client Secure Authentication MonitorDisconnect Telnet Console Session Factory defaultsTransferring conﬁguration and ﬁrmware ﬁles with Tftp Updating ﬁrmware Downloading conﬁguration ﬁles Transferring conﬁguration and ﬁrmware ﬁles with Xmodem Uploading conﬁguration ﬁlesIdle Do you want to send a saved configuration to your Netopia? Restarting the system User’s Reference Guide Part III Appendixes User’s Reference Guide Conﬁguration problems Appendix a TroubleshootingConsole connection problems SmartStart TroubleshootingNetwork problems How to reach us Power outagesTechnical support Before contacting NetopiaOnline product information Netopia Bulletin Board Service 1Product information can be found in the following FAX-BackFinding an Internet service provider Appendix B Setting Up Internet ServicesUnique requirements Setting up a Netopia R2020 accountPricing and support ISP’s Point of presenceLocal LAN IP address information to obtain NAT-disabled Local LAN IP address information to obtain NAT enabledSmartIP Obtaining information from the ISPRemote WAN IP address information to obtain Appendix C 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 maskingConﬁguration Netopia R2020 Dhcp Server CharacteristicsDhcp Address Serving Manually distributing IP addresses Using address servingMacIP Serving Serve dynamic WAN clientsUnderstanding IP Addressing C-9 Tips and rules for distributing IP addressesDhcp example Internet Nested IP subnets0.0 C.1 WAN Packet header types BroadcastsUser’s Reference Guide Appendix D Binary Conversion Table Decimal Binary Appendix E Further Reading User’s Reference Guide Further Reading E-3 User’s Reference Guide Pinouts for Auxiliary Port Modem Cable Appendix F Technical Specifications and Safety InformationDescription Power requirementsEnvironment VDC input AmpsAgency approvals Software and protocolsRegulatory notices Declaration for Canadian users Telecommunication installation cautions Important safety instructionsBattery User’s Reference Guide Outbound data 33.6K 67.2K Inbound data 56K 112K Appendix G About 56K Line AccessUser’s Reference Guide Bps See bits per second GlossaryUser’s Reference Guide Glossary User’s Reference Guide Remapping See network number remapping User’s Reference Guide Glossary User’s Reference Guide Numerics IndexIndex-2 Index-3 Index-4 Index-5 Index-6 Limited Warranty and Limitation of Remedies User’s Reference Guide