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Cisco Systems Dial NMS manual Setting Up an NTP Client

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Setting Up an NTP Client

Task 4—Using Syslog, NTP, and Modem Call Records to Isolate and Troubleshoot Faults

About Modem Call Records

Step 6 Verify that the router is receiving NTP packets from the NTP server by entering the following command:

travis-nas-01>show ntp association

address	ref clock	st	when	poll	reach	delay	offset	disp
*~172.22.255.1	127.127.7.1	8	984	1024	377	60.3	-0.89	0.8

*master (synced), # master (unsynced), + selected, - candidate, ~ configured

travis-nas-01>

The tilde (~) next to the IP address of the NTP server means the NTP service is configured. The asterisk

(*) indicates successful synchronization with the master clock.

Setting Up an NTP Client

To set up an NTP client on a Solaris v2.6 workstation, follow these steps.

Note Additional software is not required to set up NTP on the workstation if it is running Solaris v2.6 (or later).

Step 1 Locate an NTP server that can be reached by the workstation. There are many available NTP servers on the Internet. If your workstation cannot reach the Internet, locate an NTP server within your network.

Note A common practice is to configure an area border router as an NTP server for a particular subnet. The area border router then points to an external NTP server. Other equipment on that subnet uses the loopback 0 IP address on the area border router as an NTP server.

Step 2 Go to the /etc/inet directory and inspect the template file called ntp.client:

onionring:~$ cd /etc/inet
onionring:/etc/inet$ more		ntp.client
# @(#)ntp.client	1.2		96/11/06 SMI
#

#/etc/inet/ntp.client

#An example file that could be copied over to /etc/inet/ntp.conf; it

#provides a configuration for a host that passively waits for a server

#to provide NTP packets on the ntp multicast net.

#

multicastclient 224.0.1.1

Step 3 Copy ntp.client and create the ntp.conf configuration file in the /etc/inet default directory:

onionring:/etc/inet$ cp ntp.client ntp.conf

onionring:/etc/inet$

The NTP daemon reads ntp.conf at startup to locate the NTP server.

Note You must have root-level permissions to edit or copy any files in the /etc/inet/ directory.

Basic Dial NMS Implementation Guide

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Cisco Systems Dial NMS manual Setting Up an NTP Client

Contents

Internetworking Solutions Guide August Corporate Headquarters Basic Dial NMS Implementation GuideCisco Systems, Inc 170 West Tasman Drive San Jose, CA 800 553-NETS Fax 408Basic Dial NMS Implementation Guide Copyright 2000, Cisco Systems, Inc All rights reservedC O N T E N T S Task 3-Using MRTG to Monitor and Graph Traffic Loads Task 5-Setting Up a Web Portal for the Dial NMSTask 1-Enabling SNMP in a Cisco IOS Device Enabling SNMPTask 6-Managing IP Addresses by Using DNS Task 7-Using HP OpenView to Create the SNMP FrameworkTask 8-Using CiscoWorks 2000 Resource Manager Essentials Using CiscoViewContents Basic Dial NMS Implementation Guide Preface PurposeAudience ScopeConventions boldLEEE Related Documentation and Sites Technical References and SupportInternetworking Solutions Guides FreewareCisco Product Documentation Cisco Connection Online Documentation CD-ROM Documentation FeedbackAcknowledgements Overview of Basic SNMP Building Blocks About SNMPWhat are the Basic Components of SNMP? SNMP Technology TAC Page -NetworkManaged devices About Basic SNMP Message Types and Commands About Basic SNMP Message Types and CommandsFigure 1 An SNMP-Managed Network Entity NMSWhat are SNMP MIBs? A managed object has these unique identities What is SNMPv1? SNMPv1 and ASN1 Data TypesSNMPv1 and SMI-Specific Data Types What is SNMPv2? SNMPv1 Protocol OperationsAbout SNMP Management SNMPv2 and SMISMI Information Modules SNMPv2 Protocol OperationsAbout SNMP Security Overview of Basic SNMP Building Blocks About SNMP Security Basic Dial NMS Implementation GuideNetwork Design for a Dial NMS Case Study Introduction to the Case StudyBenefits of a Dial NMS Dial NMS Planning Questionnaire THEnetNetwork Design Questions AnswersNetwork Design Questions and Answers continued THEnetNetwork Design Questions AnswersDial NMS Service Definition show isdn servicedebug ppp error show controller t1show version show runningshow modem version show interface accounting` show access-lists ` show modem operational-status` show modem connect-speeds show modem summaryNetwork Topology Figure 5 Network Topology for One POPFigure 6 Network Topology for the NOC Hardware Requirements Hardware Description for Two POPs and the NOCCapacity-Planning Matrix for the Line and Chassis Requirements 3 monthsSoftware Requirements Dial NMS Software and Management System RequirementsConfiguration Design Parameters POP #1 Implementation and Operation Tasks SupportContact Phone T1 Dial-in NumberNetwork Design for a Dial NMS Case Study Implementation and Operation TasksBasic Dial NMS Implementation Guide Dial MIBs and OIDs Used in the Case Study Dial RelatedSystem Management MIB II / Interfacesshow modem summary show controllers t1call-counters show isdn memory See theshow controllers t1 call-countersshow modem summary show modemshow caller ip show isdn historyshow caller ip show caller ipTask 1-Enabling SNMP in a Cisco IOS Device About Enabling SNMPEnabling SNMP Table 13 SNMP Command DescriptionsEnables traps for unsolicited notifications for configuration Task 1-Enabling SNMP in a Cisco IOS Device About Enabling SNMP Basic Dial NMS Implementation GuideTask 2- Exploring SNMP Capabilities by Using About Using UCD-SNMPUCD-SNMP Installing UCD-SNMP and Downloading Cisco MIBs Exploring SNMP MIBs for Dial Netwo rks1.3.6.1.2.1 location. The Cisco enterprises prefix points to Note Do not forget the space between and /export About SNMP Commander Setting Up SNMP CommanderFigure 8 SNMP Commander Tool Task 2- Exploring SNMP Capabilities by Using UCD-SNMPAbout SNMP Commander Basic Dial NMS Implementation GuideTask 2- Exploring SNMP Capabilities by Using UCD-SNMP About SNMP CommanderBasic Dial NMS Implementation Guide Task 2- Exploring SNMP Capabilities by Using UCD-SNMP About SNMP Commander Basic Dial NMS Implementation GuideTask 3-Using MRTG to Monitor and Graph Traffic Loads About MRTGAbout Selecting Dial OIDs Table 14 Circuit Utilization OIDsVariable Base MIB and OID DescriptionBase MIB and OID DescriptionHow to Inspect and Interpret Data Figure 11 Daily Graph DS0s and PPP Sessions in Use Figure 12 Weekly Graph DS0s and PPP Sessions in UseThe configuration file used to create these graphs is posted at Creating and Editing a Configuration File Interface TypeSyntax Example Example Task 3-Using MRTG to Monitor and Graph Traffic Loads How to Inspect and Interpret DataBasic Dial NMS Implementation Guide Task 3-Using MRTG to Monitor and Graph Traffic Loads How to Inspect and Interpret DataBasic Dial NMS Implementation Guide crontab from any directory Sending MRTG Graphs to a Web Server Page Task 3-Using MRTG to Monitor and Graph Traffic Loads How to Inspect and Interpret Data Basic Dial NMS Implementation GuideAbout Syslog emergencies About NTP About Modem Call RecordsReleases 11.3AA and 12.0T Enabling NTP on a Cisco IOS Device Setting Up an NTP Client The following information appears Troubleshooting the NTP Client Enabling Syslog and Modem Call Records in the Cisco IOS Softwarentpq -p command console errors or logging console warnings Configuring the Syslog Daemon daemon is not running, no ID is returned Inspecting Syslog Messages in t he Log File Figure 18 Syslog Messages that Appear by Using FTP and a Web BrowserUses FTP to view About Modem Call Records Basic Dial NMS Implementation Guide Task 5-Setting Up a Web Portal for the Dial NMS About a Web PortalUtility FunctionBuilding a Device Linker Web Page OOB console access Troubleshooting a Cisco 2511 Console Connection About HTTP Access to the CLI Using HTTP to Access CLI Commandsshow running configuration show isdn serviceshow file systems show ip routeshow caller timeout authenticationauthorization debug ppp authenticationFigure 22 Cisco IOS CLI Commander Task 5-Setting Up a Web Portal for the Dial NMSAbout HTTP Access to the CLI Basic Dial NMS Implementation GuideFigure 23 Output for the Show Caller Command Task 5-Setting Up a Web Portal for the Dial NMSAbout HTTP Access to the CLI Basic Dial NMS Implementation GuideTask 6-Managing IP Addresses by Using DNS About Managing IP AddressesReference Using Cisco Network Registrar CLI Command s Note The NRCMD command mode is not used In the previous example, the zone command Using a Batch File to Make Changes to a DNS Configuration Creating a Primary Forward Zone Creating an IP Tracker Web PageTask 6-Managing IP Addresses by Using DNS About Managing IP Addresses To create an IP tracker web page, follow these stepsFigure 24 IP Tracker Web Page Basic Dial NMS Implementation GuideStep 2 Understand how the CGI scripts function How to Create a Reverse DNS Zone esupport-austin.the.netRefresh 1 hours Retry 30 minutesTask 6-Managing IP Addresses by Using DNS How to Create a Reverse DNS Zone Basic Dial NMS Implementation GuideTask 7-Using HP OpenView to Create the SNMP Framework About HP OpenViewVerifying the SNMP Configuration Connected to native database openviewIn the SNMP Configuration screen, enter the following information Task 7-Using HP OpenView to Create the SNMP Framework Step 4 Click Add and Apply to submit the entriesAbout HP OpenView Basic Dial NMS Implementation GuideAbout SNMP Demand Polls Performing an SNMP Demand PollStep 5 Select Network Connectivity Poll Node Testing SNMP Get Requests Table 31 Important Fields to Inspect In the Polling Results continuedFigure 29 Successful SNMP Test Table 32 Test IP/TCP/SNMP Field DescriptionsTroubleshooting SNMP and a Demand Poll Verifying that SNMP Traps Are ReceivedStep 1 Open the All Events Browser. From the Fault menu, select Events Unmanaging the Dial Ports Creating and Adjustin g Maps About Discovery Filters Select Automatic LayoutChoose Off For This Submap Setting Up and Editing a Discover y Filter TheNetNodeList This is the filter for TheNet nodeslist TheNetNodes TheNetFiltersUsing the HPOV CLI to Enter a Device into the Database Task 7-Using HP OpenView to Create the SNMP Framework About Discovery Filters Basic Dial NMS Implementation GuideTask 8-Using CiscoWorks 2000 Resource Manager Essentials About CiscoWorks 2000 RMECiscoWorks 2000 TAC Support Page -Provides links to CiscoWorks 2000 Documentation Set -A collection ofImporting Devices from HPOV and Popul ating the Databases Step 5 Select Inventory Import from Local NMSChoose Resolve conflicts after importing Choose Cisco devices only Verifying that Device Polling is Turned On Polling the Devices Figure 35 The Status of the DevicesTask 8-Using CiscoWorks 2000 Resource Manager Essentials Figure 36 Devices Listed in the Availability MonitorStep 6 Click Finish About CiscoWorks 2000 RMEBacking up Cisco IOS Configurations Step 2 Select All DevicesUsing CiscoView Step 2 Go to Monitor CiscoViewTask 8-Using CiscoWorks 2000 Resource Manager Essentials Figure 39 Available Modems in the Cisco AS5800 Dial ShelfAbout CiscoWorks 2000 RME Basic Dial NMS Implementation GuideTask 8-Using CiscoWorks 2000 Resource Manager Essentials About CiscoWorks 2000 RME Basic Dial NMS Implementation GuideI N D E Page Page Page Page Index Basic Dial NMS Implementation Guide