Configuration Guide
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Contents 6 C H A P T E R Configuring the Switch Stack 5-19 Default Switch Stack Configuration 5-19 Enabling Persistent MAC Address 5-19 Assigning Stack Member Information 5-22 Assigning a Stack Member Number 5-22 Setting the Stack Member Priority Value...Command Switches 6-10 Virtual IP Addresses 6-11 Other Considerations for Cluster Standby Groups 6-11 Automatic Recovery of Cluster Configuration 6-12 IP Addresses 6-13 Hostnames 6-13 Passwords 6-14 SNMP Community Strings 6-14 Switch Clusters and Switch Stacks 6-15 TACACS+ and RADIUS 6-16 LRE Profiles 6-16 Using the CLI to Manage Switch Clusters...
Contents 6 C H A P T E R Configuring the Switch Stack 5-19 Default Switch Stack Configuration 5-19 Enabling Persistent MAC Address 5-19 Assigning Stack Member Information 5-22 Assigning a Stack Member Number 5-22 Setting the Stack Member Priority Value...Command Switches 6-10 Virtual IP Addresses 6-11 Other Considerations for Cluster Standby Groups 6-11 Automatic Recovery of Cluster Configuration 6-12 IP Addresses 6-13 Hostnames 6-13 Passwords 6-14 SNMP Community Strings 6-14 Switch Clusters and Switch Stacks 6-15 TACACS+ and RADIUS 6-16 LRE Profiles 6-16 Using the CLI to Manage Switch Clusters...
Configuration Guide
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... 9-2 Default Password and Privilege Level Configuration 9-2 Setting or Changing a Static Enable Password 9-3 Protecting Enable and Enable Secret Passwords with Encryption 9-3 Disabling Password Recovery 9-5 Setting a Telnet Password for a Terminal Line 9-6 Configuring Username and Password Pairs 9-6 Configuring Multiple Privilege Levels 9-7 Setting the Privilege Level for a Command 9-8 Changing the Default Privilege Level for Lines 9-9 Logging into and Exiting a Privilege Level 9-9 Controlling Switch...
... 9-2 Default Password and Privilege Level Configuration 9-2 Setting or Changing a Static Enable Password 9-3 Protecting Enable and Enable Secret Passwords with Encryption 9-3 Disabling Password Recovery 9-5 Setting a Telnet Password for a Terminal Line 9-6 Configuring Username and Password Pairs 9-6 Configuring Multiple Privilege Levels 9-7 Setting the Privilege Level for a Command 9-8 Changing the Default Privilege Level for Lines 9-9 Logging into and Exiting a Privilege Level 9-9 Controlling Switch...
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...Advertisements 14-3 VTP Version 2 14-4 VTP Pruning 14-4 VTP and Switch Stacks 14-6 Configuring VTP 14-6 Default VTP Configuration 14-7 VTP Configuration Options 14-7 VTP Configuration in Global Configuration Mode 14-7 VTP Configuration in VLAN... Database Configuration Mode 14-8 VTP Configuration Guidelines 14-8 Domain Names 14-8 Passwords 14-8 VTP Version 14-9 Configuration Requirements 14-9 Configuring a VTP Server 14-9 Configuring a VTP Client 14-11... 14-14 Monitoring VTP 14-16 Contents OL-8550-02 Catalyst 3750 Switch Software Configuration Guide xv
...Advertisements 14-3 VTP Version 2 14-4 VTP Pruning 14-4 VTP and Switch Stacks 14-6 Configuring VTP 14-6 Default VTP Configuration 14-7 VTP Configuration Options 14-7 VTP Configuration in Global Configuration Mode 14-7 VTP Configuration in VLAN... Database Configuration Mode 14-8 VTP Configuration Guidelines 14-8 Domain Names 14-8 Passwords 14-8 VTP Version 14-9 Configuration Requirements 14-9 Configuring a VTP Server 14-9 Configuring a VTP Client 14-11... 14-14 Monitoring VTP 14-16 Contents OL-8550-02 Catalyst 3750 Switch Software Configuration Guide xv
Configuration Guide
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43 C H A P T E R Configuring Fallback Bridging 42-3 Default Fallback Bridging Configuration 42-4 Fallback Bridging Configuration Guidelines 42-4 Creating a Bridge ... 42-11 Troubleshooting 43-1 Recovering from a Software Failure 43-2 Recovering from a Lost or Forgotten Password 43-3 Procedure with Password Recovery Enabled 43-4 Procedure with Password Recovery Disabled 43-6 Preventing Switch Stack Problems 43-7 Recovering from a Command Switch Failure 43-8 Replacing...Guidelines 43-16 Displaying the Physical Path 43-17 Contents OL-8550-02 Catalyst 3750 Switch Software Configuration Guide xxxvii
43 C H A P T E R Configuring Fallback Bridging 42-3 Default Fallback Bridging Configuration 42-4 Fallback Bridging Configuration Guidelines 42-4 Creating a Bridge ... 42-11 Troubleshooting 43-1 Recovering from a Software Failure 43-2 Recovering from a Lost or Forgotten Password 43-3 Procedure with Password Recovery Enabled 43-4 Procedure with Password Recovery Disabled 43-6 Preventing Switch Stack Problems 43-7 Recovering from a Command Switch Failure 43-8 Replacing...Guidelines 43-16 Displaying the Physical Path 43-17 Contents OL-8550-02 Catalyst 3750 Switch Software Configuration Guide xxxvii
Configuration Guide
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... can be ordered from anywhere in all Catalyst 3560 and 3750 images; For more information, see the release notes for more information on IPv6 routing, see the getting started guide. • User-defined and Cisco-default Smartports macros for creating custom switch configurations... with basic IP information, contact information, switch and Telnet passwords, and Simple Network Management Protocol (SNMP) information through a web browser. Simplifying and minimizing switch, switch stack, and switch cluster management from Cisco. for this feature and to as Network Assistant) for ...
... can be ordered from anywhere in all Catalyst 3560 and 3750 images; For more information, see the release notes for more information on IPv6 routing, see the getting started guide. • User-defined and Cisco-default Smartports macros for creating custom switch configurations... with basic IP information, contact information, switch and Telnet passwords, and Simple Network Management Protocol (SNMP) information through a web browser. Simplifying and minimizing switch, switch stack, and switch cluster management from Cisco. for this feature and to as Network Assistant) for ...
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...agent is configured and is enabled). Operating mode is enabled. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 1-13 For more information, see Chapter 9, "Configuring...5, "Managing Switch Stacks." • Switch cluster is disabled. Chapter 1 Overview Default Settings After Initial Switch Configuration Note For information about assigning an IP address by using...do not configure the switch at all, the switch operates with Cisco Network Assistant, available on Cisco.com. • No passwords are both enabled. For more information, see Chapter 7, "...
...agent is configured and is enabled). Operating mode is enabled. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 1-13 For more information, see Chapter 9, "Configuring...5, "Managing Switch Stacks." • Switch cluster is disabled. Chapter 1 Overview Default Settings After Initial Switch Configuration Note For information about assigning an IP address by using...do not configure the switch at all, the switch operates with Cisco Network Assistant, available on Cisco.com. • No passwords are both enabled. For more information, see Chapter 7, "...
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... Command Modes, page 2-1 • Understanding the Help System, page 2-3 • Understanding Abbreviated Commands, page 2-4 • Understanding no and default Forms of Commands, page 2-4 • Understanding CLI Error Messages, page 2-5 • Using Configuration Logging, page 2-5 • Using Command ...-Line Interface This chapter describes the Cisco IOS command-line interface (CLI) and how to use it to enter privileged EXEC mode. The commands available to all commands, you must enter a password to configure your Catalyst 3750 switch. From global configuration mode, you...
... Command Modes, page 2-1 • Understanding the Help System, page 2-3 • Understanding Abbreviated Commands, page 2-4 • Understanding no and default Forms of Commands, page 2-4 • Understanding CLI Error Messages, page 2-5 • Using Configuration Logging, page 2-5 • Using Command ...-Line Interface This chapter describes the Cisco IOS command-line interface (CLI) and how to use it to enter privileged EXEC mode. The commands available to all commands, you must enter a password to configure your Catalyst 3750 switch. From global configuration mode, you...
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...page 3-16 Note Information in this release and the Cisco IOS IP Command Reference, Volume 1 of automatic and manual methods. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 3-1 CH A P T E R 3 Assigning the Switch IP Address and Default Gateway This chapter describes how to create the initial ... IP Version 6 (IPv6) forwarding on the switch and setting up the initial switch configuration (IP address, subnet mask, default gateway, secret and Telnet passwords, and so forth). If you need to follow the procedures in this chapter, see Chapter 36, "Configuring IPv6 Unicast ...
...page 3-16 Note Information in this release and the Cisco IOS IP Command Reference, Volume 1 of automatic and manual methods. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 3-1 CH A P T E R 3 Assigning the Switch IP Address and Default Gateway This chapter describes how to create the initial ... IP Version 6 (IPv6) forwarding on the switch and setting up the initial switch configuration (IP address, subnet mask, default gateway, secret and Telnet passwords, and so forth). If you need to follow the procedures in this chapter, see Chapter 36, "Configuring IPv6 Unicast ...
Configuration Guide
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... flash file system before the operating system is loaded. After the boot loader gives the operating system control of the flash device that makes up the flash file system. • Initializes the flash file system on ...default is 1. • Parity settings default is none. The switch stack is necessary, you can assign switch information, make sure you want to match these activities: • Performs low-level CPU initialization. Before you can also configure a hostname and an enable secret password. For more information, see the hardware installation guide. Catalyst 3750...
... flash file system before the operating system is loaded. After the boot loader gives the operating system control of the flash device that makes up the flash file system. • Initializes the flash file system on ...default is 1. • Parity settings default is none. The switch stack is necessary, you can assign switch information, make sure you want to match these activities: • Performs low-level CPU initialization. Before you can also configure a hostname and an enable secret password. For more information, see the hardware installation guide. Catalyst 3750...
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... and a DHCP server. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 3-3 Table 3-1 Default Switch Information Feature IP address and subnet mask Default gateway Enable secret password Hostname Telnet password Cluster command switch functionality Cluster name Default Setting No IP address or subnet mask are...internetworking devices. Disabled. Note If you remove them from a DHCP server to a device and a mechanism for centralized control and automatic assignment of IP information after the server is automatically configured at startup with the same IP address in your...
... and a DHCP server. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 3-3 Table 3-1 Default Switch Information Feature IP address and subnet mask Default gateway Enable secret password Hostname Telnet password Cluster command switch functionality Cluster name Default Setting No IP address or subnet mask are...internetworking devices. Disabled. Note If you remove them from a DHCP server to a device and a mechanism for centralized control and automatic assignment of IP information after the server is automatically configured at startup with the same IP address in your...
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...will be lost the next time you reload the system. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 3-11 Building configuration... Chapter 3 Assigning the Switch IP Address and Default Gateway Checking and Saving the Running Configuration ! end To store the configuration...file, see Appendix C, "Working with the Cisco IOS File System, Configuration Files, and Software Images." enable secret 5 $1$ej9.$DMUvAUnZOAmvmgqBEzIxE0 ! . . interface VLAN1 ip address 172.20.137.50 255.255.255.0 no service password-encryption ! interface gigabitethernet6/0/1 no switchport ip ...
...will be lost the next time you reload the system. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 3-11 Building configuration... Chapter 3 Assigning the Switch IP Address and Default Gateway Checking and Saving the Running Configuration ! end To store the configuration...file, see Appendix C, "Working with the Cisco IOS File System, Configuration Files, and Software Images." enable secret 5 $1$ej9.$DMUvAUnZOAmvmgqBEzIxE0 ! . . interface VLAN1 ip address 172.20.137.50 255.255.255.0 no service password-encryption ! interface gigabitethernet6/0/1 no switchport ip ...
Configuration Guide
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...is enabled if you enter the IP information by default. If the cluster command switch is available only on the cluster command switch and propagates them to the cluster member switch. Note The Catalyst 1900 and Catalyst 2820 CLI is at privilege level 15. The ...privilege level as usual. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 6-17 For more information about the Catalyst 1900 and Catalyst 2820 switches, refer to the installation and configuration guides for the password to access the menu console. The Cisco IOS commands then operate as on page ...
...is enabled if you enter the IP information by default. If the cluster command switch is available only on the cluster command switch and propagates them to the cluster member switch. Note The Catalyst 1900 and Catalyst 2820 CLI is at privilege level 15. The ...privilege level as usual. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 6-17 For more information about the Catalyst 1900 and Catalyst 2820 switches, refer to the installation and configuration guides for the password to access the menu console. The Cisco IOS commands then operate as on page ...
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... 9-7 Default Password and Privilege Level Configuration Table 9-1 shows the default password and privilege level configuration. No password is written to a network or network device. For more information, see the Cisco IOS Security Command Reference, Release 12.2. Multiple networking devices can enter after they have logged into a network device. The password is encrypted before it is defined. Catalyst 3750 Switch...
... 9-7 Default Password and Privilege Level Configuration Table 9-1 shows the default password and privilege level configuration. No password is written to a network or network device. For more information, see the Cisco IOS Security Command Reference, Release 12.2. Multiple networking devices can enter after they have logged into a network device. The password is encrypted before it is defined. Catalyst 3750 Switch...
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...particularly for passwords that cross the network or that you use either the enable password or enable secret global configuration commands. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 9-3 Beginning in effect simultaneously. By default, no enable password global configuration...password is , you can simply enter abc?123 at the password prompt. Chapter 9 Configuring Switch-Based Authentication Protecting Access to Privileged EXEC Commands Setting or Changing a Static Enable Password The enable password controls access to access privileged EXEC mode (the default)...
...particularly for passwords that cross the network or that you use either the enable password or enable secret global configuration commands. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide 9-3 Beginning in effect simultaneously. By default, no enable password global configuration...password is , you can simply enter abc?123 at the password prompt. Chapter 9 Configuring Switch-Based Authentication Protecting Access to Privileged EXEC Commands Setting or Changing a Static Enable Password The enable password controls access to access privileged EXEC mode (the default)...
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...password from another switch configuration. To disable password encryption, use the no enable password [level level] or no service password-encryption global configuration command. Catalyst 3750 Switch Software Configuration Guide 9-4 OL-8550-02 Use the privilege level global configuration command to have access at various levels. The default...you copy from being readable in the configuration file. By default, no password is defined. • (Optional) For encryption-type, only type 5, a Cisco proprietary encryption algorithm, is case sensitive, and allows spaces ...
...password from another switch configuration. To disable password encryption, use the no enable password [level level] or no service password-encryption global configuration command. Catalyst 3750 Switch Software Configuration Guide 9-4 OL-8550-02 Use the privilege level global configuration command to have access at various levels. The default...you copy from being readable in the configuration file. By default, no password is defined. • (Optional) For encryption-type, only type 5, a Cisco proprietary encryption algorithm, is case sensitive, and allows spaces ...
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... Commands This example shows how to configure the encrypted password $1$FaD0$Xyti5Rkls3LoyxzS8 for privilege level 2: Switch(config)# enable secret level 2 5 $1$FaD0$Xyti5Rkls3LoyxzS8 Disabling Password Recovery By default, any user. This command produces the boot loader ...Catalyst 3750 Switch Software Configuration Guide 9-5 When the switch is powering on a secure server. This setting is saved in case the end user interrupts the boot process and sets the system back to the switch password by disabling part of the VLAN database file on and then by the boot loader and the Cisco...
... Commands This example shows how to configure the encrypted password $1$FaD0$Xyti5Rkls3LoyxzS8 for privilege level 2: Switch(config)# enable secret level 2 5 $1$FaD0$Xyti5Rkls3LoyxzS8 Disabling Password Recovery By default, any user. This command produces the boot loader ...Catalyst 3750 Switch Software Configuration Guide 9-5 When the switch is powering on a secure server. This setting is saved in case the end user interrupts the boot process and sets the system back to the switch password by disabling part of the VLAN database file on and then by the boot loader and the Cisco...
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... if you have a router to the FTP server. If you do not want to use for your FTP server. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide C-13 This step is required only if you upload a configuration file to the FTP server, it must be... more information, see the documentation for only that copy operation. • When you override the default remote username or password (see the documentation for the FTP download. Appendix C Working with the Cisco IOS File System, Configuration Files, and Software Images Working with Configuration Files If the server has ...
... if you have a router to the FTP server. If you do not want to use for your FTP server. OL-8550-02 Catalyst 3750 Switch Software Configuration Guide C-13 This step is required only if you upload a configuration file to the FTP server, it must be... more information, see the documentation for only that copy operation. • When you override the default remote username or password (see the documentation for the FTP download. Appendix C Working with the Cisco IOS File System, Configuration Files, and Software Images Working with Configuration Files If the server has ...
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...16.101.101: Switch# copy system:running configuration file named switch2-confg to which is required only if you . OL-8550-02 Catalyst 3750 Switch Software Configuration Guide C-15 Write file switch2-confg on the remote system. If the destination file does not exist, RCP creates it... Files By Using RCP The RCP provides another , you must support RCP. This step is connection-oriented. Appendix C Working with the Cisco IOS File System, Configuration Files, and Software Images Working with TFTP. ip ftp password password (Optional) Change the default password.
...16.101.101: Switch# copy system:running configuration file named switch2-confg to which is required only if you . OL-8550-02 Catalyst 3750 Switch Software Configuration Guide C-15 Write file switch2-confg on the remote system. If the destination file does not exist, RCP creates it... Files By Using RCP The RCP provides another , you must support RCP. This step is connection-oriented. Appendix C Working with the Cisco IOS File System, Configuration Files, and Software Images Working with TFTP. ip ftp password password (Optional) Change the default password.
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...server is used during all archive operations. Working with Software Images Appendix C Working with the Cisco IOS File System, Configuration Files, and Software Images Before you begin downloading or uploading an image... between subnets. For more information, see Steps 4, 5, and 6). (Optional) Change the default remote username. (Optional) Change the default password. To keep the current image. Enter global configuration mode. Downloading an Image File By Using... session. Include the username in NVRAM. C-26 Catalyst 3750 Switch Software Configuration Guide OL-8550-02
...server is used during all archive operations. Working with Software Images Appendix C Working with the Cisco IOS File System, Configuration Files, and Software Images Before you begin downloading or uploading an image... between subnets. For more information, see Steps 4, 5, and 6). (Optional) Change the default remote username. (Optional) Change the default password. To keep the current image. Enter global configuration mode. Downloading an Image File By Using... session. Include the username in NVRAM. C-26 Catalyst 3750 Switch Software Configuration Guide OL-8550-02
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...-old-sw keyword), you override the default remote username or password (see Steps 4, 5, and 6). (Optional) Change the default remote username. (Optional) Change the default password. Caution For the download and upload ...web management pages associated with the embedded device manager have been installed with the Cisco IOS File System, Configuration Files, and Software Images If you specify the /leave...can remove it by referring to the "Preparing to an FTP server. C-28 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 The algorithm installs the downloaded image onto...
...-old-sw keyword), you override the default remote username or password (see Steps 4, 5, and 6). (Optional) Change the default remote username. (Optional) Change the default password. Caution For the download and upload ...web management pages associated with the embedded device manager have been installed with the Cisco IOS File System, Configuration Files, and Software Images If you specify the /leave...can remove it by referring to the "Preparing to an FTP server. C-28 Catalyst 3750 Switch Software Configuration Guide OL-8550-02 The algorithm installs the downloaded image onto...