Lab 2.2.2 Routers – Overview
Estimated time: 20 min.
Objectives:
· Determine the model number of a Cisco router and what physical interfaces (ports) it has.
· Identify the cables attached to the router and what they connect to.
· Check and/or modify HyperTerminal configuration parameters.
· Connect to the router as its console using the PC and HyperTerminal program.
· Determine the IOS version and file name.
· Determine the CPU type, amount of RAM, NVRAM and Flash memory.
Background:
In this lab you will examine a Cisco router to gather information about its physical characteristics and begin to relate Cisco router products to their function. You will determine the model number and features of a specific Cisco router including which interfaces are present and to which cabling and devices they are connected.
A router is basically a dedicated microcomputer that has a Central Processing Unit (CPU), an operating system (Cisco IOS), and RAM and ROM inside. Routers do not have disk drives, keyboards or monitors. One of the ways to configure or program the router is to connect directly to it with a PC or a dumb terminal. The PC provides a monitor and keyboard for the router which is referred to as its "console". The PC becomes the console which allows you to enter commands and communicate directly with the router. In this lab, you will work with a PC workstation using the Windows HyperTerminal (terminal emulation) program to act as a console to the router and you will configure the proper PC serial port settings in order to connect to and communicate with it.
Tools / Preparation:
Prior to starting the lab, the teacher or lab assistant will need to check that a router is available and that a PC workstation is connected as a console with HyperTerminal installed and properly configured to access the router. The router should be exposed with all sides clearly visible so that all physical connections and cables can be inspected. Work in teams of 2 or more. Before beginning this lab you may want to review Chapters 3 and 4 in the Cisco Networking Academy First-Year Companion Guide and Semester 2 On-line Chapter 2.
The following resources will be required:
· Windows PC w/ HyperTerminal installed and configured to access the router
· Cisco Router (16xx or 25xx model)
· Console Cable (Roll-Over) connecting the PC serial port to the router console port
· CAT 5 Ethernet Cable attached to an Ethernet port
· Ethernet hub or switch
· WAN Cable attached to a Serial port
Web Site Resources:
Routing basics
General information on routers
2500 series routers
1600 series routers
Terms and acronyms
IP routing protocol IOS command summary
Notes:
Step 1 - Examine the router.
1. What is the model number?
2. Do you see a console port? (Y/N)
What port is it connected to on the console terminal (PC workstation)?
3. What type of cable is the console cable, and is it a roll-over, cross-connect or
straight-through cable?
Step 2 - Record all of the interfaces (or port connectors) on the router and, any cable attached.
Explanation: If the port has a cable attached, identify the cable type, connector, and the device attached to the other end. (If a port does not have a cable you should be able to identify the connector type that would be used)
5. Fill in the following table.
Router Interface/ Port Identifier / Cable type/ Connector / Device and port to which cable is connected
Step 3 - Review the workstation's 'HyperTerminal' configuration.
Explanation: Click on Start/Programs/Accessories/Communications, and then HyperTerminal. Right Click on the icon that is defined for console access to the Cisco Router and then click Properties. The icon may be named Cisco.ht or something similar. If one does not exist you can create it using the settings shown in the answers to the worksheet. On the Properties screen, click the Phone Number Tab and then click the on the Configure button.
6. Fill in the following table with the information indicated.
Configuration Option / Current Setting(s)COM Port
Bits per second
Data bits
Parity
Stop Bits
Flow control
Step 4 - Display IOS version and other important information related to RAM, NVRAM and Flash memory with the show version command
Task: Connect to the console port on the router and enter the show version command.
Explanation: The router will return information about the IOS and memory.
7. What is the IOS version?
8. What is the name of the system image (IOS) file?
9. From where was the router IOS image booted?
10. What type of processor (CPU) and how much RAM does this router have?
11. How many Ethernet interfaces does this router have?
12. How many Serial interfaces?
13. The router backup configuration file is stored in Non-Volatile Random Access Memory (NVRAM). How much NVRAM does this router have?
14. The router operating system (IOS) is stored in Flash memory. How much flash memory does this router have?
Lab 2.2.2 Routers - Answers
Step 1
1. Examine the router. What is the model number? Cisco 2514 (will vary)
2. Do you see a console port? Yes What port is it connected to on the Console terminal (PC workstation)? 9-pin serial COM1 port with an RJ-45 converter
3. What type of cable is the console cable? Is it a roll-over, cross-connect or straight-through cable? The cable is a roll-over (Pin 1 to pin 8, pin 2 to pin 7 and so on)
Step 2
4. Fill in the following table. (these are examples)
Router Interface/ Port Identifier / Cable type/ Connector / Device and port to which cable is connectedConsole / Roll Over, RJ-45 / PC Serial port com1 (9-Pin)
AUX / None / Used for modem with remote dial in
E0 (AUI0) / CAT 5 Unshielded Twisted Pair (UTP) & 8-pin RJ-45 or DB15 / Ethernet Hub or Switch
BRI0 / Not used, RJ-45 / Basic Rate Interface ISDN
To0 (DB9) / Not used, connector female / Token Ring Interface
S0 (synchronous) / Serial cable DB60 to V.35 / WAN link connection to other router
S1 (synchronous) / Not used / WAN link connection
Step 3
5. Fill in the following table with the information indicated.
Configuration Option / Current Setting(s)COM Port / Direct to COM1
Bits per second / 9600
Data bits / 8
Parity / None
Stop Bits / 2
Flow control / Hardware
Step 4
Display IOS version and other important information related to RAM, NVRAM and Flash memory with the show version command (refer to the "show version" output listed following the questions)
6. What is the IOS version? Version 11.1(5)
7. What is the name of the system image (IOS) file? flash:igs-j-l.111-5
8. From where was the router IOS image booted? Flash memory
9. What type of processor (CPU) and how much RAM does this router have? cisco 2500 (68030) processor (revision N) with 6144K/2048K bytes of memory.
10. How many Ethernet interfaces does this router have? 1 Ethernet/IEEE 802.3 interface
11. How many Serial interfaces? 2 Serial network interfaces
12. The router backup configuration file is stored in Non-Volatile Random Access Memory (NVRAM). How much NVRAM does this router have? 32K bytes of non-volatile configuration memory
13. The router operating system (IOS) is stored in Flash memory. How much flash memory does this router have? 8192K bytes of processor board System flash (Read ONLY)
Results of show version command (Output generated by a Cisco 2501 router)
Cisco Internetwork Operating System Software
IOS (tm) 3000 Software (IGS-J-L), Version 11.1(5), RELEASE SOFTWARE (fc1)
Copyright (c) 1986-1996 by cisco Systems, Inc.
Compiled Mon 05-Aug-96 11:48 by mkamson
Image text-base: 0x0303794C, data-base: 0x00001000
ROM: System Bootstrap, Version 11.0(10c), SOFTWARE
ROM: 3000 Bootstrap Software (IGS-BOOT-R), Version 11.0(10c), RELEASE SOFTWARE (fc1)
Router uptime is 15 minutes
System restarted by power-on
System image file is "flash:igs-j-l.111-5", booted via flash
cisco 2500 (68030) processor (revision N) with 6144K/2048K bytes of memory.
Processor board ID 05645767, with hardware revision 00000000
Bridging software.
SuperLAT software copyright 1990 by Meridian Technology Corp).
X.25 software, Version 2.0, NET2, BFE and GOSIP compliant.
TN3270 Emulation software (copyright 1994 by TGV Inc).
1 Ethernet/IEEE 802.3 interface.
2 Serial network interfaces.
32K bytes of non-volatile configuration memory.
8192K bytes of processor board System flash (Read ONLY)
Configuration register is 0x2102
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