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Cisco WS-C1912-A Hardware Installation Guide - Page 83

Configuring the Enable and Enable Secret Passwords, Restrictions, SUMMARY STEPS

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Chapter 5 Configuring the Router Performing the Initial Configuration on the Router Step 4 Command or Action Verify that the router prompt displays your new hostname. Purpose - Step 5 Example: myrouter(config)# end (Optional) Returns to privileged EXEC mode. Example: myrouter# end Configuring the Enable and Enable Secret Passwords To provide an additional layer of security, particularly for passwords that cross the network or are stored on a TFTP server, you can use either the enable password command or enable secret command. Both commands accomplish the same thing-they allow you to establish an encrypted password that users must enter to access privileged EXEC (enable) mode. We recommend that you use the enable secret command because it uses an improved encryption algorithm. Use the enable password command only if you boot an older image of the Cisco IOS software or if you boot older boot ROMs that do not recognize the enable secret command. For more information, see the "Configuring Passwords and Privileges" chapter in the Cisco IOS Security Configuration Guide. Also see the Cisco IOS Password Encryption Facts tech note and the Improving Security on Cisco Routers tech note. Restrictions If you configure the enable secret command, it takes precedence over the enable password command; the two commands cannot be in effect simultaneously. SUMMARY STEPS 1. enable 2. configure terminal 3. enable password password 4. enable secret password 5. end 6. enable 7. end OL-19084-02 Cisco 1900 Series Hardware Installation 5-9

Section	Page
Cisco 1900 Series Integrated Services Router Hardware Installation	1
Contents	3
Preface	7
Objectives	7
Audience	7
Organization	8
Conventions	8
Related Documentation	15
Searching within Cisco Documents	16
Obtaining Documentation and Submitting a Service Request	16
Overview of the Router	17
Safety Warnings	17
Safety Warnings for Finland, Norway and Sweden	18
Chassis Views	18
Hardware Features	21
Product Serial Number Location	22
Cisco Product Identification Tool	23
Built-In Interfaces	23
Removable, Interchangeable, and Optional Modules	24
Memory	25
LED Indicators	26
Chassis Ventilation	28
Real-Time Clock	28
Chassis Security	28
Wireless LAN Connectivity	28
Baud Reset Button	29
Interface Numbering	29
Specifications	30
Regulatory Compliance	34
Preparing for Router Installation	35
Safety Recommendations	35
General Guidelines	35
Safety with Electricity	36
Preventing Electrostatic Discharge Damage	37
General Site Requirements	37
Power Supply Considerations	38
Site Environment	38
Site Configuration	38
Wireless LAN Considerations	39
Inspecting the Router	39
Installation Checklist	39
Site Log	40
Required Tools and Equipment for Installation and Maintenance	41
Cable Information and Specifications for Cisco 1900 Series Routers	43
Console and Auxiliary Port Considerations	43
About Console and Auxiliary Ports	43
Console Port Connections	43
EIA/TIA-232 Port	44
USB Serial Console	44
Auxiliary Port Connections	45
Preparing to Connect to a Network	45
Ethernet Connections	45
Serial Connections	45
About Serial Connections	46
Configuring Serial Connections	46
Serial DTE or DCE Devices	46
Signaling Standards Supported	46
Transmission Speeds and Distance Limitations	47
Asynchronous/Synchronous Serial Module Baud Rates	47
ISDN BRI Connections	48
CSU/DSU Connections	48
Installing and Connecting the Router	49
About Modules	49
Internal Modules	49
Plug-In Modules	50
Safety Warnings	50
Safety Warnings for Finland, Norway and Sweden	51
Setting Up the Chassis	51
Chassis Airflow Diagram	51
Setting the Chassis on a Desktop	52
Chassis Grounding	52
Wall-Mounting the Chassis	52
Rack-Mounting the Chassis	55
Attaching Rack-Mount Brackets to Cisco 1900 Series Routers	55
Installing the Chassis Ground Connection	57
Connecting WAN and LAN Cables	59
Safety Messages	59
Ports and Cabling	61
Connection Procedures and Precautions	62
Connecting to a Console Terminal or Modem	62
Connecting to the Console Port with Microsoft Windows	62
Connecting to the Console Port with Mac OS X	64
Connecting to the Console Port with Linux	64
Installing the Cisco Microsoft Windows USB Device Driver	65
Installing the Cisco Microsoft Windows XP USB Driver	65
Installing the Cisco Microsoft Windows 2000 USB Driver	65
Installing the Cisco Microsoft Windows Vista USB Driver	66
Uninstalling the Cisco USB Driver	66
Uninstalling the Cisco Microsoft Windows XP and 2000 USB Driver	66
Using the Add Remove Programs Utility	66
Using the Setup.exe Program	67
Uninstalling the Cisco Microsoft Windows Vista USB Driver	67
Connecting to the Auxiliary Port	68
Connecting Power	69
Connecting to AC Power	69
Connecting to DC Power	70
DC Wiring Requirements for Cisco 1900 Series Routers	70
Cisco 1900 Series Router Wiring Procedure for DC Input	71
Configuring the Router	75
Powering up the Router	75
Checklist Before Powering Up the Cisco Router	75
Powering Up the Cisco Router	76
Verifying the Front Panel LED Indications	77
Performing the Initial Configuration on the Router	77
Using the Cisco Setup Command Facility	77
Using Cisco Configuration Professional Express	80
Using the Cisco CLI-Manual Configuration	80
Initial CLI Configuration	81
Configuring the Router Hostname	82
Configuring the Enable and Enable Secret Passwords	83
Configuring the Console Idle Privileged EXEC Timeout	84
Configuring Gigabit Ethernet Interfaces	86
Specifying a Default Route or Gateway of Last Resort	88
Configuring IP Routing and IP Protocols	88
Gateway of Last Resort	89
Configuring Virtual Terminal Lines for Remote Console Access	91
Configuring the Auxiliary Line	92
Verifying Network Connectivity	93
Saving Your Router Configuration	95
Saving Backup Copies of Configuration and System Image	95
Verifying the Initial Configuration	97
Getting Software Licenses for the Router	99
Activating a New Software Package or Feature	99
RMA License Transfer	100