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USRobotics NETServer/16, NETServer/8 manual Turn off the output console by typing the following

Models: NETServer/16 NETServer/8

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4.When you are finished viewing debug messages, tell the NETServer not to display messages.

set debug 0x00

5.Turn off the output console by typing the following:

reset console

Administrative Tools 9-5

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USRobotics NETServer/16, NETServer/8 manual Turn off the output console by typing the following

Contents

NETServer/8 NETServer/16 Page Table of Contents Network Dial-in Access Reference Section Administrative ToolsLimited Warranty Warranty and ServiceTechnical Support Service and SupportVii Viii We welcome your suggestions for better documentationOverview Chapter OverviewWhat’s New with Release 3.1? Additional Software EnhancementsAccounting Server Support Netmask TableIP Address Spoofing Accounting ServersIcmp Message Logging Multiple Name ServersRandomized Hosts Radius Accounting and ANI/DNISNew Modem Port Features NETServer Overview IP Modem Sharing How do I get there from here? Security Administrative UtilitiesSystem Administrator Requirements Chapter Basic InstallationBasic Installation TCP/IP Reference Material Accessing the Command Line Getting Started First step for IPX or IP/IPX networks Getting the LAN port up and runningBasic Installation IP Configuration You must also set the Broadcast Address. Type the following Ethernet802.3 ethernet802.2 ethernet802.2II ethernetII IPX ConfigurationFinal Steps Password Recommended Global ConfigurationIP and IPX Default Gateways To set the IP gateway, type the following Save your work Name ServiceBasic Installation How to Setup Applications Chapter Configuration OverviewConfiguration Overview Application Section Where do I go from here?Separate a parameter and its value by a space Command LineCommands are not case sensitive You can abbreviate commandsSave your changes Reset any ports you have changedReboot when necessary How to log out of the command lineQuick Command Overview Global Configuration Overview of configurable tablesHosts Table Netmasks Table Initialization Script ConfigurationNet0 LAN Port Configuration Location TablePacket Filter Table Port Type Port ConfigurationRoutes Table Snmp ConfigurationUser Table Configuration Overview Terminal or Workstation Setup Chapter IP Terminal Server SetupIP Terminal Server Setup NETServer Terminal Server Setup Overview Global Default Port DefaultUser Table Set the port’s security Pass-Thru Login Terminal Server Detailed SetupConfiguring a Port Set the port type to User LoginCreate default user settings for the port Port Default Login Service Optional Friendly Stuff Save sport # Adding a Remote User to the User Table Configure the userAdd the user to the User Table Login Service Configure for dialback use? Example IP Terminal Server Case StudiesNETServer will use ports 6, 7, and 8 for this application Save your work and reset all the ports Example IP Terminal Server Setup Dial-in User Setup Chapter Network Dial In AccessNetwork Dial In Access Prework NETServer Setup for Network Dial-In OverviewConfiguration NETServer Dial-In Detailed Setup Dialback Users on this Port? Save the changes to flash memory Normal or dialback user? Create a new userAdd configuration information for the user This is the user’s IP subnet mask. Use the following command Option can be any one of the following Configure the ports IP Remote Access Case StudyCreate a user table entry for the dialback user Create user table entries for the dial in usersSave your work and reset the ports Connecting to the NETServer IPX Remote Access Create User Table entries for the dial in users Chapter LAN-to-LAN Routing Setup for NETServer Routing OverviewLAN-to-LAN Routing IPX routing LAN-to-LAN Routing NETServer Routing An Introduction to NETServer RoutingLAN-to-LAN Routing How RIP Dynamically Builds the Routing Table Static vs. Dynamic RoutesEstablishing Connections to Remote Gateways How Packets are RoutedRouting Procedure PAP Password Authentication Protocol PAP/CHAP AuthenticationChap Setup for the NETServer Chap Challenge Example Configuring the Port LAN-to-LAN Routing Detailed SetupCreating a Dial-Out Group Create a new location table entry Adding a Remote Device to the Location TableSet Required Location Parameters This is the remote device’s IP address Set location location name netmask netmask Dial Group Number Multiple lines for a single connection Maximum Ports Create a Dial Script Set location Chicago script 1 atds slot#\r Connect Create a User Table Entry Adding the Remote Device to the User TableTell the NETServer about the Remote Device Set user user name protocol ppp slip Set netuser user name compression on off LAN-to-LAN Routing Case Study Add netuser nsb password xyzabc Setting Up NETServer aSetting Up NETServer B Now, save your work and reset the ports Testing the Connection What If I Don’t Want to Use Chap Authentication? Connecting to NETServer a from NETServer BAssign the modem a TCP port number Configure the port as a host deviceChapter Talking to the Modems TCP/IP Modem SharingTurn modem control carrier detect off Save your work and reset the portImplementing Security with Host Device Dial Out Configuring modems as Unix pseudo TTYs Talking to the Modems Assign Text to an Initialization Script Modem Initialization ScriptsHow To Add a New Initialization ScriptDelete an Initialization Script Use an Existing Initialization ScriptDisplaying an Initialization Script Initialization Script Example Default initialization stringSending AT commands to the modems Talking to the Modems Packet Filters Chapter Packet FiltersPacket Filters Packet Filters and the NETServer Types of FiltersInformation Sources Input filters vs. Output filtersAdding Packet Filters Input filters vs. Output filters Rule Type Filter Rule FormatName Permit or Deny Rule NumberOptions TCP/IP packet filtering Destination Address TCP and UDP parameters TCP UDP Standard Port NumbersFTP Packet Filtering Filtering RIP messagesClient opens a control channel FTP Example Type Description Filtering Icmp packetsIPX Rules IPX packet filteringDsthost SAP Rule Options Delete a Packet Filter Editing Packet FiltersEdit a Packet Filter Delete a Packet Filter RuleView the Packet Filter Table View a Packet FilterRoot Access Chapter Administrative ToolsConfiguring the !root account Changing the command promptTelnet Access Port Dial Command Manually Connecting to a Remote SiteNslogin, Rlogin and Telnet Commands Viewing Debug messages Troubleshooting CommandsTurn off the output console by typing the following Ifconfig MTU Ping Ptrace Version TracerouteShow Show commandShow flash Show arpShow netconns Show memoryShow netstat Show sessions Show sapAdministrative Tools Global Configuration Chapter Command ReferenceCommand Reference Get help View the Global Configuration TableSave Changes Connect Message Default HostGlobal user parameters Assigned AddressRandomize Hosts Global routing parameters Default GatewaysIP Address Spoofing Default RouteSystem Name NetBIOS Packet PropagationPAP Authentication Proxy ARPService Name ServiceServer name Domain name DNS Cache Reset Time-outRadius Secret Radius securityPrimary Radius Server Alternate Radius ServerSyslog Accounting Radius AccountingIcmp Logging View the Hosts Table Hosts TableAdd a Host Delete a HostChange a Location’s Parameters Bring Up the List of CommandsLocation Table Add a Location to the Location TableView the Location Table Save Location Table ChangesView a Particular Location Connection Type Location Table ParametersNetmask IP AddressIPX Network Routing ProtocolCompression Maximum Ports Dial GroupHigh Water Mark Idle Time-outPPP Async Map MTUInput Filter Output FilterDial Script Send Reply Reset the Network Interface Card LAN Port Net0 ConfigurationLAN Port Parameters View LAN Port ConfigurationEthernet Status Interface Address Configured Ethernet MediaBroadcast Address IPX Frame Type Set net0 ifilter filter name View the netmask table Netmask TableAdd a netmask Delete a netmaskChange a Port’s Parameters Save Port ConfigurationView the Ports Table To view all of the S-ports, use the following commandIdle Port is idle View an Individual Port Determining a Port’s Type User LoginHost Device Device Service Network Dial In Port Parameters Login MessageLine Hangup Security Pass-Thru Login Login PromptDialback Delay User Login Port ParametersAutolog Name Host Login Service Terminal Type IPX Network Number Hardwired Port ParametersSet s0 netmask netmask NETServer sends RIP information across Stopbits Serial Communications ParametersPort Speed DatabitsModem Control ParityFlow Control Host OverrideAdd a Route to the Routes Table Routes Table ConfigurationChange a Route’s Information Save Routes Table Changes Delete a Routes Table EntryView the IP Routes Table Flag Parameter Viewing the IPX Routes TableIP Parameters IPX Parameters Enabling/Disabling Snmp Snmp TableDelete Snmp Hosts Save the Snmp Table ChangesWrite Community Name Snmp Table ParametersView Snmp Table Read Community NameWrite Hosts Read HostsAdd a User to the User Table User TableView the User Table Change a User’s ParametersDelete a User Save User Table ChangesAccess Filter Login User ParametersDialback Number Set user name service rlogin telnet netdata portmux Command Reference Dialback Network User ParametersIPX connections require the PPP protocol NETServer sends RIP information to the dial Set user filter name ofilter filter name Command Reference 16 port NETServer Hardware Appendix a Technical SpecificationsTypical Input Power Power RequirementsMaximum Output Power Maximum Input PowerExternal Serial Port Console Technical Specifications A-310Base-T Ethernet Network Interface CardIsolated GND SignalTechnical Specifications A-5 10Base-2 BNCTechnical Specifications Technical Specifications A-7 Token Ring⎯STP ConnectorToken Ring Network Interface Card Token Ring⎯UTP Connector Routing Support NETServer Firmware SpecificationsAdministration Technical Specifications A-9Industry Standards Support PPP Specific FeaturesClient Dial-up Support Slip and PPP Client Software Support Technical Specifications A-11Technical Specifications Addressing Schemes B-1 Appendix B Addressing SchemesIPX Addressing Basics IP Addressing BasicsSubnetting Address ClassesAddressing Schemes Addressing Schemes B-3 Mask Binary Subnets HostsReserved Addresses Addressing Schemes B-5 Supernetting Advanced TCP/IPCidr Each Supernet is treated as a single entity Addressing Schemes B-7 Step two Select a range of addresses for each supernet Addressing Schemes B-9 Supernetting and the NETServer Software Download C-1 SDL Using a Direct Connection to a PCWhy Perform an SDL Software Download? Appendix C Software DownloadStarting SDL Make Backup Copies of the NETServer FirmwareSoftware Installation Loading the Software Download SDL ProgramSoftware Download C-3 SDL Command SyntaxFilename Prefixes Optional -d ParameterSoftware Download C-5 Entering SDL ModeUpgrading NETServer Firmware From the Windows Management SoftwareSoftware Download C-7 Upgrading the Modem FirmwareFor the Isdn NETServer, the file names are Software Download C-9 Error MessagesPC SDL program detected unknown command line argu- ments Software Download C-11 Invalid Control Word Software Download C-13 File you are trying to download is not a NETServer file Boot Process D-1 Appendix D Boot ProcessBoot Process Appendix E Syslog Accounting Using SyslogSyslog Accounting E-1 Syslog Accounting Syslog System MessagesSpotting Unused Ports Syslog System Message FormatSyslog Accounting E-3 Syslog System Message ExamplesSomeone has logged in as !root on port S16 Syslog Accounting E-5 Syslog Accounting Obtaining Radius Appendix FSecurity a Centrally Managed User Table Authentication Items Setting Up Radius User Table EntriesResponse Items Radius F-5 Framed-Netmask Radius F-7 User Types Radius F-9 Making NETServer talk to a Radius security server Chap authentication using Radius Acct-Status-Type Acct-Delay-TimeRadius Accounting Radius accounting fieldsAcct-Authentic Accounting ExamplesAcct-Session-Time Radius Index Alphabetical IndexIndex Icmp MTU NIC PPP SAP Slip Index Index