Contents
5
Software Configuration Guide—Release IOS XE 3.9.xE and IOS 15.2(5)Ex
Example Configuration 3-7
Configuring the Switch 3-8
Using Configuration Mode to Configure Your Switch 3-9
Verifying the Running Configuration Settings 3-9
Saving the Running Configuration Settings to Your Start-Up File 3-10
Reviewing the Configuration in NVRAM 3-10
Configuring a Default Gateway 3-11
Configuring a Static Route 3-11
Controlling Access to Privileged EXEC Commands 3-13
Setting or Changing a Static enable Password 3-13
Using the enable password and enable secret Commands 3-14
Setting or Changing a Privileged Password 3-14
Controlling Switch Access with TACACS+ 3-15
Understanding TACACS+ 3-15
TACACS+ Operation 3-17
Configuring TACACS+ 3-17
Displaying the TACACS+ Configuration 3-22
Encrypting Passwords 3-22
Configuring Multiple Privilege Levels 3-23
Setting the Privilege Level for a Command 3-23
Changing the Default Privilege Level for Lines 3-23
Logging In to a Privilege Level 3-24
Exiting a Privilege Level 3-24
Displaying the Password, Access Level, and Privilege Level Configuration 3-24
Recovering a Lost Enable Password 3-25
Modifying the Supervisor Engine Startup Configuration 3-25
Understanding the Supervisor Engine Boot Configuration 3-25
Understanding the ROM Monitor 3-26
Configuring the Software Configuration Register 3-26
Modifying the Boot Field and Using the boot Command 3-28
Modifying the Boot Field 3-29
Modifying the Configuration Register Value for Wireless Mode 3-29
Verifying the Configuration Register Setting 3-30
Specifying the Startup System Image 3-31
Flash Memory Features 3-31
Security Precautions 3-32
Configuring Flash Memory 3-32
Controlling Environment Variables 3-32
Replacing and Rolling-Back Configuration 3-33
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