Cabletron Systems SEHI-24, SEHI-22 Setting the Default Gateway, Using the Port Enable Override

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LOCAL MANAGEMENT

Setting the Default Gateway

The Default Gateway ﬁeld allows you to describe the router through which the SEHI will be forwarding IP packets.

To set the Default Gateway:

1.Use the arrow keys to highlight the Default Gateway field.

2.Enter the gateway’s default mask in this field. The format for this entry is XXX.XXX.XXX.XXX with values for XXX being from 0 to 255.

3.Press the Return key. If your entry is accepted as a valid default gateway, “OK” appears to the right of the field.

4.Use the arrow keys to highlight the SAVE option, then press the Return key or F6. The “SAVED OK” message appears indicating that the changes have been saved to memory.

Using the Port ENABLE Override

To set the Port ENABLE Override:

1.Use the arrow keys to highlight the Port ENABLE Override field.

2.Press the Return key to toggle from the default setting of “OVERRIDE DISABLED” to “OVERRIDE ENABLED”.

3.The adjacent ﬁeld displays “Y/N”. Enter Y to continue enabling all of the ports, or N to discontinue the port enable override. If you answer Y, all existing ports are enabled, and the message “PORT ENABLED” appears.

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Contents 10BASE-T Intelligent Stackable HUB USER’S Guide Printed On Recycled Paper FCC Notice DOC NoticeCabletron SYSTEMS, INC Program License Agreement Cabletron Software Program LicenseExclusion of Warranty Disclaimer of Liability United States Government Restricted RightsTable of Contents Troubleshooting InstallationConnecting to the Network Local ManagementContents Appendix B Twisted Pair Wiring Tables A-1 Using this Manual Chapter IntroductionIntroduction Getting Help Sehi OverviewPolarity Detection and Correction Sehi FeaturesRepeater Functionality Flash EEPROMsLocal Management Reset ButtonLanview LEDs Stackable CapabilitiesIntroduction Optional Features EpimRack Mount or Wall Mount Hardware Daughter Board Upgrade KitRelated Manuals Cable Specifications HubSTACK Interconnect Cable RequirementsImpedance LengthInsertion Loss JitterCrosstalk DelayTemperature NoiseFiber Optic Budget and Propagation Delay Cable Type Attenuation Maximum Cable LengthInstallation REQUIREMENTS/SPECIFICATIONS Cable Type ConnectorsThin-Net Network Requirements for the EPIM-C Module TerminatorsAUI Cable Requirements for the EPIM-A and EPIM-X Modules Network Port SpecificationsAUI Cable SEHI-22 and SEHI-24 Network Port Speciﬁcations SEHI-32 and SEHI-34 Network Port SpeciﬁcationsPin Champ Connector Installation REQUIREMENTS/SPECIFICATIONS Epim Specifications EPIM-TEPIM-F1 and EPIM-F2 Parameter Typical Worst Worst Case Typical Value BudgetEPIM-F3 EPIM-F3Parameter Typical Minimum Maximum Connector Type EPIM-CEPIM-A and EPIM-X AUI Port EPIM-A and EPIM-XCOM Transceiver RequirementsGeneral Delay Times Start of PacketsDelay Times JAM PreambleOutput Min. Load Max. Load Max Power Fault ProtectionPower Supply Requirements JAM OutputSafety PhysicalInstalling the Sehi Unpacking the SehiStacking the Sehi Stacking the Sehi Attaching the Strain Relief Bracket Disconnect SEH and Sehi Interconnect Cables At the OUT PortInstalling the Sehi in the Rack Rack Mounting the SehiWall Mounting the Sehi Free-Standing Installation Shelf or Table-top InstallationInstallation Connecting the Sehi to the Power Source Connecting the Sehi to the Network Connecting to Network Ports, SEHI-22 and SEHI-24EPIM-2 Connecting to Network Ports, SEHI-32 and SEHI-34 Connecting a UTP Segment to an EPIM-T EPIM-T Cross-over SwitchConnecting to the Network Connecting to the Network Connecting to the Network Connecting a Thin-Net Segment to an EPIM-C EPIM-C Connecting an AUI Cable to an EPIM-A EPIM-AConnecting an AUI Cable to an EPIM-X Finishing the Installation On Position Toward Back Epim OFF Position Toward FrontChapter Troubleshooting Installation CHECK-OUTUsing Lanview PWR CPURCV Troubleshooting CLNUsing the Reset Button LNKChapter Local Management Local Management Management Terminal Requirements Console Cable Conﬁguration Management Terminal ConnectionGeneral Setup Management Terminal Setup ParametersMenu Function Selection Display Setup SetupLocal Management Accessing Local Management Sehi Local ManagementFeature Selection Screen Local Management Using the Local Management Screens Community Name Table ScreenAccess Community NameEditing the Community Name Field Conﬁguration Screen IP AddressSetting the IP Address Default GatewayPort Enable Override SubNet MaskSetting the Subnet Mask Setting the Default Gateway Using the Port Enable OverrideExiting the Configuration Screen Trap Table ScreenTraps Configuring the Trap TableSnmp Community Name Trap IP AddressExiting the Trap Table Screen Snmp Tools ScreenSet OID PrependGet Get NextStep WalkRecall-OID CyclesGetting Individual OIDs Getting the Next OIDSetting an OID Viewing Multiple OIDsStepping Through OIDs Walking Through OIDsCycling Through OIDs Exiting the Snmp Tools Screen Device Statistics ScreenAlignment Errors Errors ReceivedCRC Errors Port Admin. StatusUpdate-Freq Enable PortDisable Port Port Seg. StatusUsing the Enable Port Command Selecting the Appropriate Module/PortUsing the Disable Port Command Exiting the Device Statistics ScreenAppendix a Twisted Pair Wiring Tables Twisted Pair Wiring TablesA-2 A-3 A-4 10BASE-T From Punch Down To RJ-45 Into Block Wallplate OfﬁceDrop Device A-6 A-7 SEHI-32/34 Punch Wall Plate Champ Down Block If Required Ethernet DeviceFigure A-1. Punch Down Block A-9 Spanish Power Supply CordGerman French