Solving Startup Problems | Nortel Networks 14.2 guide

Appendix B Troubleshooting Network Boot Problems

Use the information in this appendix to resolve problems directly related to startup and connectivity with remote routers.

	Topic	Page

	Solving Startup Problems	B-1

	Identifying Remote Connectivity Problems	B-8

	Resolving Connectivity Problems	B-10

	Maintaining the Router Software	B-17

	Hints and Notes	B-19

Note: For other troubleshooting information, see Troubleshooting Routers.

Solving Startup Problems

This section helps you to isolate and solve the most common router startup problems. Proceed to the appropriate section:

•Router Fails to Get IP Address (page B-2)

•Router Fails to Netboot (page B-3)

•Router Fails to Perform Directed Netboot (page B-5)

•Router Netboots, but Fails to Load Applications (page B-5)

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Nortel Networks 14.2 manual Appendix B Troubleshooting Network Boot Problems, Solving Startup Problems

Contents

Configuring Remote Access for AN and Passport ARN Routers Statement of Conditions Copyright 1999 Nortel NetworksTrademarks Restricted Rights Legend Iii Nortel Networks NA Inc. Software License Agreement 308614-14.20 Rev Contents Chapter Setting Up a Unix Boot Server Chapter Managing ANH Repeater Ports Appendix C Using the Quick-Start Local Boot Procedure Figures Page Tables Page Before You Begin Preface Example Enter show ip alerts routes Text ConventionsBold text Ping Italic text Acronyms Ccitt Hard-Copy Technical Manuals Technical Solutions Center Telephone How to Get Help Chapter Understanding Tools and Options Network Configuration and Management Tools Startup Files Router Startup Procedure Router Startup Files Startup Options Pcmcia Summary of Startup Options for AN/ANH and ARN Routers Netboot Process Boot Process Configuring Remote Access for AN and Passport ARN Routers Calculating an IP Address Direct Access PVC or Standard PPP AN/ANH/ARN Key Obtaining the Kernel and Configuration Files Obtaining the Configuration File Obtaining the Kernel File Establishing an IP Network Interface Local Boot Process Selecting the Initial Startup Option Preparing for the Initial Startup Local Boot EZ-Install Netboot Providing a Tailored Configuration File Netboot Selecting the Routine Startup OptionRecommendations Directed Netboot Steps for Completing Startup Options Local Boot EZ-Install Netboot Directed Netboot Local Boot Chapter Setting Up a Unix Boot Server To Configure This Startup Option Complete These SectionsTopic Copying BootPD on Sun Workstations Setting Up a BootP ServerSetting Up BootP Sockets Configuring BootPD Log in to the Unix workstation as root Setting Up BootPD to RunSetting Up BootPD to Respond to AN/ANH and ARN Routers Enter the following command cp /usr/wf/bin/bootpd /etc Save the bootptab file changes Editing the bootptab FileCp /usr/wf/config/bootptab /etc Required or Tag Optional Value Example BootPD Tags for a Router Host Name Required Tag Or Optional Value Example BootPD Tags for a Kernel File Name Sample bootptab File Verifying Consistent BootP Service T130=0x0004\ T129=/rte3/cfg/ANChic.cfg\ tc=general Providing Tftp Access to All Directories Setting Up a Tftp ServerSetting Up Tftpd Providing Tftp Access to All Directories Restricting Tftp Access to Specified Directories Restricting Tftp Access to Specified DirectoriesLn -s . usr Ln -s . tftpboot Tftpuseridgroupno.//bin/false Setting Up Static Routes to Next-Hop RoutersAdding a Tftp User for an HP 9000 Workstation Editing the /etc/inetd.conf File Netstat -r Verifying the RoutesLoading the Changes into Memory Log in as root Kill -1 What to Do NextPage Configuring Netboot Services with Site Manager Creating Configuration Files Preparing Configuration and Image Files Base Module Site Manager Module Name Configuration Manager Module Names for AN and ANHARN Base Module Configurations Module Name Mnemonic Connector Type Adapter Module Site Manager Module Name ARN Expansion Module ConfigurationsARN Adapter Module Configurations Expansion Module Site Manager Module Name Preparing an Image Enabling Netboot or Directed Netboot Site Manager Procedure You do this System respondsChoose Protocols Choose Global Protocols Configuring Netboot Services with Site Manager Choose Interfaces Adding a Netboot or Directed Netboot Interface Configuring a Netboot or Directed Netboot Interface Enabling Router Interfaces Setting Up Routing Paths for Netboot Enabling BootP Relay in a Sample Network Creating BootP Relay Agent Forwarding Tables Choose Edit CircuitChoose Protocols Input IP Address Output IP Address Choose Relay Agent Interface Table Creating the BootP Client Interface Table IP Address Dlci Number Page For This Startup Configuration Complete These Sections Chapter Configuring Netboot Client Services Using Netboot Configuration Commands Bconfig image config local network TFTPhost TFTPpathname Setting the Boot ConfigurationUsing the bconfig Command Format Bconfig -d image config Bconfig image network bconfig config network Examples of Using the bconfig Command Setting the Netboot Interface Configuration Configuring a Serial Interface for Network BootingFr -annexd -lmi -annexa-intclk Ifconfig Command Options for a Serial Interface Ifconfig Command Options for an Ethernet Interface Configuring an Ethernet Interface for Network Booting Ifconfig Command Options for an ARN Token Ring Interface Configuring an ARN Token Ring Interface for Network Booting Examples of Using the ifconfig Command Enabling and Disabling Interfaces with the ifconfig Command Getcfg Verifying Your Configuration What to Do Next Page Chapter Managing ANH Repeater Ports Choose Port Status Tools Choose Configuration ManagerChoose Setup Repeater Enabling and Disabling ANH Repeater Ports Port ANH Port Status Window Port ANH Port Status Window Selftest Testing and Resetting ANH Repeater PortsReset Choose Group ParametersPage Appendix a Site Manager Parameters Netboot and Directed Netboot Parameters Parameter Boot Image From NetworkParameter Boot Config From Network Parameter Boot Server Address Parameter Boot Image PathnameParameter Boot Config Pathname Parameter Slot Netboot Interface ParametersParameter Connector Parameter Connector IP Address Parameter Connector Subnet Mask Parameter Connector Next HopParameter Connector Protocol Mask Parameter Connector State BootP Relay Agent Interface Parameters Parameter Input IP AddressParameter Output IP Address BootP Client Interface Address Parameters Parameter IP AddressParameter Dlci Number Parameter Reset Repeater Port Group ParametersParameter Selftest Page Solving Startup Problems Appendix B Troubleshooting Network Boot Problems Upstream Router Not Receiving BootP Requests Upstream Router Not Sending BootP ResponsesRouter Fails to Get IP Address Router Fails to Netboot Router Not Sending BootP Responses BootP Server Not Sending BootP ResponsesSee Verifying the BootP Server Setup on page B-14 Router Netboots, but Fails to Load Applications Router Fails to Perform Directed Netboot Get wfDrivers.*.0 Set wfDrivers.wfTMS380Load.0 2147483648commit Get wfSyncEntry.*.1.connectorGet wfCSMACDEntry.*.1.connector Get wfTokenRingEntry.*.1.connector Identifying Remote Connectivity Problems Displaying Statistics and Error MessagesDisplaying Messages from the Router Console Guidelines for Using a LAN Protocol Analyzer Guidelines for Using Packet Capture Displaying Parameter Settings Resolving Connectivity Problems Troubleshooting Network Boot Problems Compare the bootptab file with the bootpd.dmp file Debugging the BootP Server Message Explanation Table B-1 BootP Messages Bootptab file for an ARN should contain these entries Verifying the BootP Server Setup Netstat -rn grep -i -n IPaddress Displaying the BootP Server IP Routes Select the following path Get wfBootpRelayIntfEntry.*.IPaddressDisplaying the Number of Packets Forwarded and Dropped Quick Get Instructions Upgrading the Software Image Maintaining the Router Software Restoring a Local File System Hints and Notes Setup Hints Implementation Notes Appendix C Using the Quick-Start Local Boot Procedure What Is Quick-Start? Using the WorksheetsConfiguring Remote Access for AN and Passport ARN Routers Using the Quick-Start Local Boot Procedure Fill out the Global Information worksheet completelyFill out one Wide Area Protocol worksheet Global Information Worksheet Global Information WorksheetPrompt Options Your Response Using the Quick-Start Local Boot Procedure RIP Worksheet Router Protocol Worksheets Nbma Ospf Worksheet Enter a router priority value. The lower Wide Area Protocol Worksheets DCE PPP Worksheet Frame Relay Worksheet See Configuring PPP Services for Using the Quick-Start Local Boot Procedure Smds Worksheet Running the Quick-Start ScriptRequested Information Options Your Response Follow the script online Restart the router by entering bootEnter dir to check the contents of the flash memory card Enter Manager to log Task Action Details Save the configuration file To cancel the test, type q Index Symbols Index-2 Index-3 Index-4 Index-5 Index-6 Index-7