Chapter 11 - Configuring and Testing Your Network

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Chapter 11 - Configuring and Testing Your Network

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Nội dung Text: Chapter 11 - Configuring and Testing Your Network

  1. Chapter 11 - Configuring and Testing Your Network CCNA Exploration 4.0
  2. Overview • Define the role of the Internetwork Operating System (IOS) • Use Cisco CLI commands to perform basic router and switch configuration and verification • Given a network addressing scheme, select, apply, and verify appropriate addressing parameters to a host • Use common utilities to verify network connectivity between hosts • Use common utilities to establish a relative performance baseline for the network H c vi n m ng Bách khoa - Website: www.bkacad.com
  3. Role of Internetwork Operating System (IOS) • Identify several classes of devices that have IOS embedded H c vi n m ng Bách khoa - Website: www.bkacad.com
  4. Role of Internetwork Operating System (IOS) • Basic routing and switching functions • Reliable and secure access to networked resources • Network scalability • Using Cisco Command Line Interface (CLI) to configuration H c vi n m ng Bách khoa - Website: www.bkacad.com
  5. H c vi n m ng Bách khoa - Website: www.bkacad.com
  6. Access Methods • Access Methods – Console – Telnet or SSH – AUX port H c vi n m ng Bách khoa - Website: www.bkacad.com
  7. Access Methods • Use the CLI to access various IOS configuration modes on a device H c vi n m ng Bách khoa - Website: www.bkacad.com
  8. Console • Console – Low speed serial connection to directly connect a computer or terminal to the console port on the router or switch. – Provides out-of-band access to a router • Examples of console use are: – The initial configuration of the network device – Disaster recovery procedures and troubleshooting where remote access is not possible – Password recovery procedures H c vi n m ng Bách khoa - Website: www.bkacad.com
  9. Telnet and SSH • Telnet – Require active networking services on the device. – Run on layer 7 in OSI model • Secure Shell (SSH) protocol – Like telnet but more secure access – Stronger password – Uses encryption when transporting session data – Use can use ssh client on PC name: Putty http://www.chiark.greenend.org.uk/~sgtatham/putty/dow nload.html H c vi n m ng Bách khoa - Website: www.bkacad.com
  10. AUX • Another way to establish a CLI session remotely is via a telephone dialup connection using a modem connected to the router's AUX port • Can used locally, like console port • Console port is also preferred over the auxiliary port for troubleshooting because it displays router startup, debugging, and error messages by default. H c vi n m ng Bách khoa - Website: www.bkacad.com
  11. Role of Internetwork Operating System (IOS) • Define the purpose of startup config. H c vi n m ng Bách khoa - Website: www.bkacad.com
  12. Role of Internetwork Operating System (IOS) • Identify the relationship between IOS and config H c vi n m ng Bách khoa - Website: www.bkacad.com
  13. Configuration files • Contain the Cisco IOS software commands used to customize the functionality of a Cisco device. • Commands are parsed (translated and executed) by the Cisco IOS software when the system is booted (from the startup-config file) or when commands are entered in the CLI while in configuration mode. H c vi n m ng Bách khoa - Website: www.bkacad.com
  14. Types of Configuration Files • The running configuration file – Used during the current operation of the device – Changes to the running configuration will immediately affect the operation of the Cisco device • The startup configuration file – Used as the backup configuration and is loaded when the device is started – The startup configuration file or startup-config file is stored in non-volatile RAM (NVRAM) H c vi n m ng Bách khoa - Website: www.bkacad.com
  15. Role of Internetwork Operating System (IOS) • Recognize that Cisco IOS is modal and describe the implications of modes. H c vi n m ng Bách khoa - Website: www.bkacad.com
  16. Role of Internetwork Operating System (IOS) • Define the different modes and identify the mode prompts in the CLI H c vi n m ng Bách khoa - Website: www.bkacad.com
  17. H c vi n m ng Bách khoa - Website: www.bkacad.com
  18. H c vi n m ng Bách khoa - Website: www.bkacad.com
  19. Role of Internetwork Operating System (IOS) • Identify the basic command structure for IOS commands H c vi n m ng Bách khoa - Website: www.bkacad.com
  20. IOS command Conventions H c vi n m ng Bách khoa - Website: www.bkacad.com
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