NET102_WEEK-NO7_CISCO-IOS-SOFTWARE-PART-1-Copy.pptx

WEEK 7 CISCO IOS SOFTWARE PART 1 NET102 – NETWORKING 2  At the end of the module, you should be able to: Explain how the Command Line Interface is used in the CISCO router and switch. Discuss the purpose of t...

WEEK 7 CISCO IOS SOFTWARE PART 1 NET102 – NETWORKING 2  At the end of the module, you should be able to: Explain how the Command Line Interface is used in the CISCO router and switch. Discuss the purpose of the types of switch-port Demonstrate Cisco router interfaces Demonstrate how to erase and back up the router Discuss show command in Cisco Command Line Interface 2 NET102 – NETWORKING 2 Introduction to Cisco Device Configuration One of the main reasons that Cisco is number one in the enterprise networking marketplace is its Internetwork Operating System (IOS). The IOS provides a function similar to that provided by Microsoft Windows XP or Linux: it controls and manages the hardware on which it is running. Advantages of the IOS: Features Connectivity Scalability Reliability Security 3 NET102 – NETWORKING 2 Advantages of the IOS: Features - The IOS includes a wide array of features for protocols and functions that provide connectivity, scalability, reliability, and security solutions for networks of any size. Connectivity - The IOS supports a variety of data link layer technologies for LAN and WAN environments, including copper and fiber wiring as well as wireless support. Scalability - The IOS supports both fixed and modular chassis platforms, enabling you to purchase the appropriate hardware to meet your needs, yet still allowing you to leverage the same IOS CLI to reduce management costs. 4 NET102 – NETWORKING 2  WEEK 7 CISCO IOS SOFTWARE PART 1 Advantages of the IOS: Reliability - To ensure that your critical resources are always reachable, Cisco has developed many products and IOS features to provide chassis and network redundancy. Security - With the IOS, you can strictly control access to your network and networking devices in accordance with your internal security policies. 5 NET102 – NETWORKING 2 Router and Switch Connectors Cisco’s routers and switches support two types of external connections: Ports (referred to as lines) -Physical port - Console (con) port - Auxiliary (aux) port Interfaces - Out-of-band - In-band CONSOLE AUXILIARY 6 NET102 – NETWORKING 2 Console Connection The console port is used to establish an out-of-band connection in order to access the CLI to manage your Cisco device locally. Once you have placed a basic configuration on your Cisco device (assigning it IP addressing information, for instance), you can then come in via one of its interfaces to manage your product inband. Some methods of in-band management include telnet, a web browser, Simple Network Management Protocol (SNMP), and CiscoWorks and Cisco Managed Services Solutions. 7 NET102 – NETWORKING 2 Console Connector Assuming that your Cisco device has an RJ-45 console port, you will need to use two components to manage your Cisco device from your PC: An RJ-45 rollover cable An RJ-45–to–DB-9 or RJ-45–to–DB-25 terminal adapter: determined by the number of pins that your COM port has on your PC If your router has a DB-25 console port, you’ll also need a DB-25–to–RJ-45 modem adapter, which is plugged into the console port of the router. 8 NET102 – NETWORKING 2 Console Connector An RJ-45 rollover cable RJ45 Network Cable Serial Cable Rj45 to DB9 and RS232 to USB (2 in 1) CAT5 Ethernet Adapter LAN Console Cable 9 NET102 – NETWORKING 2 CLI Access Modes User EXEC Mode Provides basic access to the IOS with limited command availability (basically simple monitoring and troubleshooting commands) IOS> Privilege EXEC Mode Provides high-level management access to the IOS, including all commands available at User EXEC mode IOS> enable IOS# 10 NET102 – NETWORKING 2 CLI Access Modes User EXEC Mode User Mode is the Read Only Mode which allows us to view certain configurations of a Cisco device. We cannot make or save any changes to a Cisco device in User Mode. 11 NET102 – NETWORKING 2 CLI Access Modes Privilege EXEC Mode Privilege Mode is the Read/Write Mode which allows us to perform certain actions on s Cisco device. In Privilege Mode, we can save or delete a Cisco device’s configuration. We can also perform certain settings such as setting buffer size or setting clock but we cannot configure the device. 12 NET102 – NETWORKING 2 13