HP J3188A manual Bootp Table File Entries, Definitions of the table entry fields

Page 67

Network Addressing

Using BOOTP

BOOTP Table File Entries

An entry in the BOOTP table file /etc/bootptab for an HP Hub-16M would be similar to the following:

hphub16M:\

ht=ether:\

ha=080009123456:\

ip=190.40.101.22:\

sm=255.255.255.0:\

gw=190.40.101.1:\

vm=rfc1048

Definitions of the table entry fields:

hphub16M

is a user-defined symbolic name to help you find the correct section of the

 

bootptab file. If you have multiple hubs that will be using BOOTP to get their

 

IP configuration, you should use a unique symbolic name for each hub.

ht

is the “hardware type” tag. For the HP 10Base-T hubs, set this to ether (for

 

Ethernet). This tag must precede the ha tag.

ha

is the “hardware address” tag. Use the hub’s 12-digit MAC address.

ip

is the IP address to be assigned to the hub. Enter the address in the dotted-

 

decimal format as shown in the example on the previous page.

sm

is the subnet mask of the subnet in which the hub is installed.

gw

is the IP address of the default router (or gateway) that allows the hub to

 

communicate with systems that are not on the local network segment. If there

 

is no default router, do no include this tag.

vm

is a required entry that specifies the BOOTP report format. For the HP 10Base-

 

T hubs, you must set this parameter to rfc1048.

 

 

Notes for the bootptab file:

Blank lines and lines beginning with the pound sign (#) are ignored.

Make sure you include a colon (:) and a backslash (\) as a continuation indication at the end of each line except the last one. Each record is a single line. The colon (:) separates fields in the record. The backslash (\) indicates the current record continues on the next line as if there were no carriage return and linefeed characters.

Spaces are not allowed between the characters on a line.

Names, such as hphub16M must begin with a letter and can only contain letters, numbers, periods, or hyphens.

Network Addressing

D-5

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Contents HP J3188A Page HP 10Base-T Hub-16M J3188A Installation and Reference GuidePublication Number Iii HP 10Base-T Hub-16M J3188AFront of the Hub Back of the HubNetwork Connections FeaturesContents Cables and Connectors Vii Security InformationPage Installing the Hub Verify the hub operates correctly Installing and Configuring Your HubVerify included parts Connect the external transceiverTime Cord connected directly to the hub for proper operationPattern LEDRack or Cabinet Mounting Mount the hubTable Mounting Connect the hub to your network Connecting Hubs Together Connecting Devices to the HubTwisted-Pair Cascade Connections ThinLAN Connections InstallingOhm terminator Interpreting LED Status Connecting the Hub-16M to a Fiber-Optic BackboneInterpreting Hub Status LEDs Following table provides LED port information Interpreting Port Status LEDsPage Troubleshooting Approaches TroubleshootingTroubleshooting Using a Checklist to Diagnose the Hub Using a Checklist to Diagnose the HubProblem Solution LED Operation Hub will automatically recover after Troubleshooting LED OperationDiagnostic Tips Power CollTesting the Hub Only Hub Maintenance TasksClearing a Password for the Ascii Console Running Connectivity Tests Troubleshooting Hub Maintenance TasksObtaining Firmware Enhancements Managing the Hub Setting up the Ascii ConsoleRemotely, Using Telnet Directly, Using a Serial Cable and a TerminalManaging the Hub Starting the Console Remotely, Using a Modem and a TerminalSyntax Conventions on Help Screen Console Command ReferenceCommands are described in the rest of the chapter Example HE ST This displays help for the Status commandDefault Description BAckupRange CDpstatusCOunters Counter Name Definition Valid RangeWhen to Use IPconfig IPconfigDIsconnect Following table explains the IP parameters Configuring for Network ManagementUsing Novell NetWare IPX Using IPMAnagers SHow Parameter Default Value DefinitionManager Address IP or IPX Receive Alarms? CommandTo end your editing Table entry with ID 1 would now be a blank line Displays the other devices that are using CDP protocolMEssageinterval NEighborCommunity name PAsswordClear a password PIngPOrt port ON/OFF REsetRObustness SEcure portSHowCLear Security Configuration Parameter DefinitionsManaging the Hub Configuring Security on All Twisted-Pair Ports Configuring Security on a Single PortEavesdrop Prevention, must be set to on Address Selection Authorized Clearing Security Violation Indicators Showing the Security ConfigurationSTatus SPeed new speedStatus Information What It Means To send Network links, see the , TroubleshootingTEstlink 16M will respond with the correct packetPage Recommended Cables Cables and ConnectorsFollowing table shows PC connections to the RS-232 port Following table shows network connections to the hub Cables and ConnectorsCable Function Cable Type HP Product Number Twisted-Pair Cable for Hub-to-Computer Network Connection Twisted-Pair Cable/Connector Pin-OutsPins 1 and 2 must be a twisted pair Pins 3 and 6 must be a twisted pairMinimum pin-out will function correctly RS-232 Connector and Cable Pin-OutsInstaller for assistance with your cabling requirements Cable pin-out described belowMinimum Cable Pinout for Ascii Console Connection SignalRS-232 Modem Cable Twisted-Pair Straight-Through Cable Twisted-Pair Cable Pin AssignmentsHub End MDI-X Environmental SpecificationsPhysical ElectricalSpecifications ConnectorsElectromagnetic US Robotics Courier V.FC/V.34 Modem ConfigurationMegahertz XJ2288 Pcmcia card modem Intel 14.4EX Practical Peripherals PM288MT IISupra FAX Communication Between the Hub Network Management Station Network AddressingGlobally Assigned IP Network Addresses IPX Addressing for Novell NetWareIP Addresses for IP and Non-IP Networks IPX Addressing NotesCountry Device IP ConfigurationCompany Name/Address Bootp Process Using BootpDefinitions of the table entry fields Bootp Table File EntriesPage How Backup Links Work Backup LinksLimitations Backup LinksAdditional Notes Hub to a Server Examples of Backup LinksHow the Backup Function Works Hub to a SwitchHub can monitor only one link T e G g e s t i o nConfiguration/Installation Sequence Configuring a Backup LinkIndications of Backup Link Activation Identifying the Backup LinkReactivating the Primary Link Page Understanding Network Security Security InformationSecurity Information How Intruder Prevention WorksHow Eavesdrop Prevention Works Authorized MAC addressAssigning the Authorized MAC address Setting Inbound Security with Intruder Prevention Send Alarm Auto Port DisableSetting Outbound Security with Eavesdrop Prevention Security Information Page Mounting Precautions Safety and Regulatory StatementsEquipment and should be easily accessible Power PrecautionsTemperature might exceed 45C 113F Settings to configureGrounding Safety InformationTible de causer des dommages à léquipement Informations concernant la sécuritéHinweise zur Sicherheit Considerazioni sulla sicurezza Consideraciones sobre seguridad Safety Information Japanese Canada Regulatory StatementsFCC Class a Statement for U.S.A. Only European CommunityDeclaration of Conformity Index IndexDiagnosing with the LEDs … 2-2 diagnostic tests Late collision … 3-13 mounting the hub … LED description … Verifying hub operation … Page J3188-90001