Cisco Packet Tracer PDF

**Cisco Packet Tracer** - Platform for network simulation **\*Parts ng UI\*** **IOS (Internetwork Operating System)** - Multitasking operating system used in most Cisco Routers and Switches - Has Command-Line Interface (CLI) with pre-determined commands **All network equipment depend...

**Cisco Packet Tracer** - Platform for network simulation **\*Parts ng UI\*** **IOS (Internetwork Operating System)** - Multitasking operating system used in most Cisco Routers and Switches - Has Command-Line Interface (CLI) with pre-determined commands **All network equipment depends on Operating System** - End users - Switches - Routers - Wireless Access Point - Firewalls **Shell** - User interface, to request specific tasks for the computer - Tasks made through CLI and GUI **Kernel** - Handles communication between the hardware and software - Manages hardware resources, are used to meet Software Requirements **Hardware** - Physical computer components **Types of Cisco Devices (Memory)** - ROM (Read Only Memory) - Can't be altered, responsible for booting - RAM (Random Access Memory) - Running configuration, loses content on restart - Flash Memory - For IOS images, storing, and other files - NVRAM (Non-Volatile Random Access Memory) - Stores start up configuration files, retains content on restart **Common to Accesses on IOS** **Console Access** - Used to configure newly acquired devices - Don't have IP, can't be accessed through network **Telnet Access** - Common way to access a network device - Terminal Emulation Program, allows IOS device remote configuration **SSH (Secured Shell)** - Remote access similar to Telnet - Public-key cybertrophy security **Connect Devices** - Device LEDS - Cisco 1941 LEDS **IOS Access Methods** - Console - Auxiliary - Virtual Terminal (Telnet/SSH) **Terminal Emulation Programs** - Available for connecting network devices - PuTTy - Tera Term - Secure CRT (Computer Remote Terminal) **\ ** **IOS Mode of Operation** **Primary Modes:**