3Com DUA1770-0AAA04 manual Setting Up Snmp, Default Users, Passwords

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Setting Up SNMP Management 51

Setting Up SNMP

Any network management application running the Simple Network

Management

Management Protocol (SNMP) can manage a Switch if:

 

The correct Management Information Bases (MIBs) are installed on the

 

management workstation.

 

The management workstation is connected to the Switch using a port

 

in VLAN 1 (the Default VLAN). By default, all ports on the Switch are in

 

VLAN 1.

 

You can use the 3Com Network Supervisor application that is provided on

 

the CD-ROM that accompanies your Switch to provide SNMP

 

management for your Switch. If you use 3Com Network Supervisor it

 

automatically loads the correct MIBs and necessary files onto your

 

workstation.

Pre-requisites

Documentation supplied with the SNMP network management

 

application software.

 

To manage your Switch using an SNMP network management

 

application, you need to specify SNMP community strings for the users

 

defined on the Switch. You can do this using the command line interface

 

system management snmp community command — refer to the

 

command line interface section of the “Management Interface Reference

 

Guide” for more information.

 

 

Default Users and

If you intend to manage the Switch using the web interface or the

Passwords

command line interface, or to change the default passwords, you need to

 

log in with a valid user name and password. The Switch has three default

 

user names, and each user name has a different password and level of

 

access. These default users are listed in Table 9.

 

CAUTION: To protect your Switch from unauthorized access, you must

 

change all three default passwords as soon as possible, even if you do not

 

intend to actively manage your Switch

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Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Setting UP for Management PIN-OUTS Page About this Guide Conventions Icon DescriptionConvention Description Related DocumentationDocumentation documentation Directory as a whole to maintain the structure of the files Please include the following information when commentingSuperStack 3 Switch 4900 Series Getting Started Guide 3Com recommends that you copy the Docs/referenceguideIntroducing Introducing the Superstack 3 Switch 4900 Series Hardware Features Switches Switch 4900 front view Switch Front View DetailSwitch 4924 front view Ports cross-over Unit LEDs Power/Self Test LEDColor Indicates Port Status LEDs Module Status LEDsSwitch 4900 rear view Switch RearSwitch 4924 rear view Power SocketDefault Settings Supported by your SwitchSwitch units, it is returned to these defaults Installing the Switch Package Contents Choosing a SuitableSite Have been fitted Flow through the side panels of the SwitchRack-mounting Desk, or attach it to a wallFitting a bracket for rack-mounting Repeat steps 2 and 3 for the other side of the SwitchInterconnecting two Switch 4900 units Sequence Power-upPowering-up SwitchPower System output Options RJ-45 connector is now a grounded portThat contain alignment pins can cause damage to your Switch Your SwitchTransceivers Switch 4950 GbicOperation Approved GbicInserting a Gbic Transceiver into a Switch Fiber SC connector Type 4 Gbic with internal Eeprom fittedSwitch 4950 Gbic Operation Installing the Switch Setting UP for Management Overview Setting UpAutomatic IP Configuration Manual IP ConfigurationSetting UP for Management Pre-requisites Manually Configuring IP InformationConnecting the Workstation to the Switch Configuring the Workstation with IP InformationSetting Up the Switch with IP Information Using Command Line Interface via Telnet Example top-level command line interface menu 19,200 baud Data bits Connecting a workstation to the Switch via the console portSetting Up the Switch with IP Information Configured IP ViewingAutomatically Pre-requisites Viewing IP Information via the Console Port Example top-level command line interface menu Refer to Setting Up Command Line Interface Management on CLI Management via Command LineNetwork Using Telnet Interface ManagementSetting Up Web InterfaceChoosing a Browser Http//xxx.xxx.xxx.xxx Over the NetworkSetting Up Snmp Default UsersPasswords Security Device User Modify operation on the web interface User Default Name Password Access LevelFor Technical Support information, see Appendix D Problem SolvingOn powering-up, the Power/Self Test LED lights yellow Solving ProblemsSolutions below Power LED does not lightFor further information about RMON, refer to Status ProblemsSolving Hardware Fan failure warning message is receivedUnit fails, no Snmp fan failure message is received Error message indicating that the Gbic transceiver is faultyIP Addressing Solving Communication ProblemsHow do you obtain a registered IP Address? Safety Information This must be approved for the country where it is used Important Safety InformationImportant Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX Schko ’information de Sécurité ImportanteAppendix a Safety Information 3CGBIC91 Gbic SX 3CGBIC92 Gbic LX Der Netzstecker muß die Norm CEE 7/7 erfüllen Schuko Wichtige SicherheitsinformationenWichtige Sicherheitsinformationen Appendix a Safety Information PC-AT Serial Cable Null Modem Cable 9-pin to RS-232 25-pinPin to 9-pin Assignments ConnectorsModem Cable RJ-45 PinPin Number 10/100BASE-T 1000BASE-T Appendix B PIN-OUTS Same unless otherwise stated Physical DimensionsSafety Power ConsumptionStandards Supported Power SupplyProtocols Used for Administration Heat DissipationOnline Technical ServicesUsername anonymous From this region, enter the URL Asia, Pacific RimFrom this region, email Europe, Middle East and AfricaEurope, Middle East and Africa Asia, Pacific RimCountry Telephone Number Asia, Pacific Rim Country Telephone Number Latin America Numbers IndexPasswords Regulatory Notices