Basic_IOS_Skills

Basic_IOS_Skills - CHAPTER 2 Basic Cisco IOS Skills This...

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CHAPTER 2-1 Cisco 800 Series Routers Software Configuration Guide 78-5372-03 2 Basic Cisco IOS Skills This chapter describes what you need to know before you begin configuring your router with Cisco IOS software (the software that runs your router). Note Cisco recommends that inexperienced network administrators use the Cisco 800 Fast Step application to configure their routers. This chapter contains the following sections: Configuring the Router from a PC Understanding Command Modes Getting Help Enable Secret and Enable Passwords Entering Global Configuration Mode Using Commands Saving Configuration Changes Using Debug Commands Where to Go Next Understanding these concepts saves you time when you are configuring your router. If you have never used IOS software or need a refresher, take a few minutes to read this chapter before you proceed to the next chapter. If you are already familiar with IOS software, you can proceed to the configuration chapter that is appropriate for your network.
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Chapter 2 Basic Cisco IOS Skills Configuring the Router from a PC 2-2 Cisco 800 Series Routers Software Configuration Guide 78-5372-03 Configuring the Router from a PC If you are configuring your router from a PC (not a dumb terminal), you need a type of communications software called terminal emulation software. The PC uses this software to send commands to your router. Table 2-1 lists some common names for this software, based on the type of PC you are using. You can use the terminal emulation software to change settings for the type of device that is connected to the PC, in this case a router. Configure the software to the following settings so that your PC can communicate with your router: 9600 baud 8 data bits No parity 1 stop bit No flow control You can now configure your router using your PC. Table 2-1 Terminal Emulation Software PC Operating System Software Windows 95, Windows 98, Windows NT HyperTerm (included with Windows software) Windows 3.1 Terminal (included with Windows software) Macintosh ProComm, VersaTerm
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2-3 Cisco 800 Series Routers Software Configuration Guide 78-5372-03 Chapter 2 Basic Cisco IOS Skills Understanding Command Modes Understanding Command Modes This section describes the IOS command mode structure. Each command mode supports specific IOS commands. For example, the interface type number command is used only from global configuration mode. The following IOS command modes are arranged hierarchically. When you begin a router session, you are in user EXEC mode. User EXEC Privileged EXEC Global configuration From global configuration mode, you can access the following modes: Interface configuration Router configuration Line configuration Table 2-2 lists the command modes that are used in this guide, how to access each mode, the prompt you see in that mode, and how to exit to a previous mode or enter the next mode.
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Chapter 2 Basic Cisco IOS Skills Understanding Command Modes
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Basic_IOS_Skills - CHAPTER 2 Basic Cisco IOS Skills This...

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