BOSON Classroom Labs for CCNA

1、窗体顶端窗体底端boson classroom labs for ccnastudent lab guide table of contentsintroduction3lab 1 basic router configuration9lab 2 advanced router configuration14lab 3 - cdp17lab 4 telnet18lab 5 - tftp20lab 6 - rip22lab 7 igrp24lab 8 eigrp26lab 9 - ospf28lab 10 catalyst 1900 switch configuration30lab 11 vl

2、ans and trunking (catalyst 1900 switches)33lab 12 - catalyst 2950 switch configuration35lab 13 vlans and trunking (catalyst 2950 switches)38lab 14 ip access-lists40lab 15 - nat/pat42lab 16 - ppp & chap45lab 17 isdn bri-bri using legacy ddr46lab 18 isdn bri-bri using dialer profiles48lab 19 isdn

3、pri using dialer profiles50lab 20 frame relay52appendix a - ipx lab55appendix b: answers to questions57appendix c: lab configurations64introductionboson netsim: overviewthe ccna labs contained in this lab guide are based on the boson netsim. this pc-based product simulates a wide variety of cisco ro

4、uters as well as the catalyst 1900, 2950, and 5000 switches. the netsim supports multiple routing protocols, including rip, igrp, eigrp, and single-area ospf. it supports different lan/wan protocols, including ppp/chap, isdn, and frame relay. the exercises in this lab guide only require the netsim t

5、hey do not require access to any external router or switch hardware. it should be noted that the netsim supports many, but not all of the ios commands available on a real router or switch. all the commands referenced in this lab guide are supported through the simulator.getting startedto invoke the

6、netsim, double-click on the boson netsim icon on your pc screen. if there is not an icon on the pc screen, you can start the netsim by pressing start -> boson netsim -> boson netsim. you will be presented with a screen that has buttons at the top representing each router, switch, or pc that yo

7、u will be configuring. press one of the buttons to configure a device. some of the devices are hidden (switch 3, switch 4, pc1, and pc2) and can be accessed by pressing the more devices button. there is also a button that can be pressed to show the network topology that the labs are based on. lab to

8、pologythe lab topology is shown in the diagram on the next page (it can also be viewed by selecting the topology button at the top of the netsim screen). you will have:4 x cisco 2500 routersoeach router has one ethernet and two serial interfacesoone of the 2500s, router1, has an isdn bri interface1

9、x cisco 2600 router (identified as router2)ohas one ethernet interfaceohas both an isdn bri and a pri interface2 x catalyst 1912 switchesoeach switch has twelve 10baset and two fast ethernet ports2 x catalyst 2950 switchesoeach switch has twelve 10/100 ethernet ports2 x pcsthe lan/wan interfaces and

10、 subnet numbers are indicated on the diagram. specific interface ip addresses are included in a table on page 6. lab topology ip addressesthe ip addresses and subnet masks used in all the labs are shown in the table below.deviceinterfaceip addressmaskrouter1e0s0255.2

11、55.255.0s1bri0router2f0/0bri0/0s0/0 (isdn pri)router3s0s1e0router4e0s0

12、router5s0switch1-9switch2- 00switch3-9switch4-00pc1-pc2-lab scenariosthere are 20 labs contained in this lab guide. they include:lab 1 - ba

13、sic router configurationlab 2 - advanced router configurationlab 3 - cdplab 4 - telnetlab 5 - tftplab 6 - riplab 7 - igrplab 8 - eigrplab 9 - ospflab 10 catalyst 1900 switch configurationlab 11 - vlans & trunking (catalyst 1900)lab 12 - catalyst 2950 switch configurationlab 13 - vlans and trunki

14、ng (catalyst 2950)lab 14 - ip access listslab 15 - nat/patlab 16 - ppp & chaplab 17 - isdn bri-bri using legacy ddrlab 18 - isdn bri-bri using dialer profileslab 19 - isdn pri using dialer profiles lab 20 - frame relay there is also an optional ipx lab contained in appendix a of this lab guide.

15、these labs build upon each other so the best approach is to follow the labs sequentially. you will also be asked questions at various points during the lab. answers to these questions are contained in appendix b at the back of this lab guide. appendix c also contains the completed configurations for

16、 selected labs. saving/restoring configuration files you can save your work and exit at any point. first, make sure you have selected the appropriate router/switch/pc button at the top of the netsim screen. the next step is to press file -> save device config from the top of the screen. you will

17、then be prompted for a file name. each individual device configuration must be saved separately. at a minimum, you should plan to save all configurations each time you power off your pc. to restore a configuration file, make sure you have pressed the appropriate router/switch/pc button. the next ste

18、p is to press file -> load device config (overwrite) at the top of the screen and to select the correct saved configuration file. the configuration will then be loaded. note: this process can take 15-20 seconds to complete and you will see configuration commands flash across the screen. be patien

19、t! lab 1 basic router configuration1.in this lab, you will get practice with basic configuration and show commands on the cisco router.2.select router1 from the tool bar. press enter to get to the user prompt router>3.the greater-than symbol ( >) in the prompt indicates you are in user mode. t

20、ype ? to see a list of commands that can be entered in user mode. router> ?4.type enable to get into privileged mode. the pound sign (#) indicates you are now in privileged mode.router> enablerouter#5.type ? to see a list of commands that can be entered in privileged mode. notice that there ar

21、e more commands available in privileged mode than are available in user mode. configure and reload are two such commands that can only be issued in privileged mode.router# ?6.exit privileged mode by typing disable.router# disablerouter>7.re-enter privileged mode and type configure terminal to get

22、 into configuration moderouter> enablerouter# configure terminalrouter(config)#8.configure a hostname of router1 (without the quote marks). notice how the prompt changes.router(config)# hostname router1router1(config)#9.in global configuration mode on router1, type enable ?. this will show valid

23、parameters that can be entered with the enable command. configure an enable password of ccnalab that will not be encrypted when viewing the router configuration file and an enable password of cisco that will be encrypted.a.question: when both encrypted and unencrypted enable passwords are configured

24、, which one is used?router1(config)# enable ?router1(config)# enable password ccnalabrouter1(config)# enable secret cisco10.configure an ip address for the ethernet0 interface on router1 (refer to the table on page 6 for all ip addresses and masks). activate the interface it is currently in shutdown

25、 mode. you should see a message that the interface has now come up. practice using the tab key type int and then the tab key (no spaces). you should see the word interface spelled out. router1(config)# int<tab>router1(config)# interface ethernet0router1(config-if)# ip address 255.25

26、5.255.0router1(config-if)# no shutdown11.configure an ip address for router1s serial0 interface (refer to the table for ip addresses and masks) and activate the interface. practice using abbreviated commands for both interface serial0 and no shutdown.router1(config-if)# int s0router1(config-if)# ip

27、address router1(config-if)# no shut12.exit configuration mode by keying ctrl-z . this will bring you back to the privileged mode prompt. you could also accomplish the same thing by keying exit twice. the exit command moves you back one level (from interface-configuration mode

28、 - global configuration mode - privileged mode prompt).router1(config-if)# ctrl-zrouter1# 13.type logout to exit the command line interfacerouter1# logout14.press the enter key to get back into the user mode prompt and then type enable to get into privileged mode. you will be prompted for the enable

29、 secret password cisco which you previously configured.router1> enablepassword: ciscorouter1#15.display a summary of all interfaces by typing:router1# show ip interface brief16.display detailed information on each interface by typing:router1# show interfaces17.display the active configuration in

30、dram by typing:router1# show running-config18.display the saved configuration in nvram by typing show startup-config.a. question: does anything exist in nvram? if not, why not?router1# show startup-config19. save the running (active) configuration to nvram by typing:router1# copy running-config star

31、tup-config20.now display the contents of nvram again. this time, you should see the active configuration saved in nvram.router1# show startup-config21.issue the show version command and answer these questions:a.question: what ios release is running on router1?b.question: what are the contents of the

32、 configuration register?router1# show version22.issue the command to show which layer 3 protocols are currently running on the router.a.question: which protocols are currently running on the router?router1# show protocols23.select router2 from the toolbar on top. press enter and get into user mode.

33、from there go into privileged mode.router> enablerouter# configure terminalrouter(config)# 24.configure a hostname of router2 and configure an enable secret password of cisco for router2.router(config)# hostname router2router2(config)# enable secret cisco25.configure an ip address for fast ethern

34、et 0/0 on router2 and activate the interface (see the diagram above for ip addresses and masks). router2 is 2600 modular router and must be configured using slot/port notation.router2(config)# interface fa 0/0router2(config-if)# ip address router2(config-if)# no shut26.displa

35、y the summary status of all interfaces. remember to get out of configuration mode first before issuing any show commands.a.question: what status should interface e0/0 show if it is fully activated? b.question: what status would e0/0 show if it was in shutdown mode?router2(config-if)# ctrl-zrouter2#

36、show ip interface brief27.try to ping router1s ethernet address () from router2.a.question: were you successful? if not, what commands should you use for trouble-shooting?router2# ping lab 2 advanced router configuration1.in this lab you will practice using some advanced configu

37、ration and show commands on the cisco router. please remember your lab 1 commands needed to switch between router modes (i.e. exit, end, disable)2.on router1, configure a console password of boson. the console user must enter this password before gaining access to the user mode prompt.router1(config

38、)# line console 0router1(config-line)# loginrouter1(config-line)# password boson3.configure a banner that says” welcome to router1 - authorized users only”.router1(config)# banner motd # welcome to router1 - authorized users only #4.test the banner and console password by logging out of the router a

39、nd logging back in. get into enable mode after successfully logging into the console.router1# logoutenterpassword: bosonrouter1> enablepassword: ciscorouter1#5.configure a password of cisco on router2 that will enable remote users to telnet into it:router2(config)# line vty 0 4router2(config)# lo

40、ginrouter2(config-line)# password cisco6.on router1, associate a name of router2 with the remote ip address . this will allow you to ping router2s name rather than having to remember its ip address.router1(config)# ip host router2 7.verify that the name is in router1s host table

41、with the show hosts command.router1# show hosts8.ping router2 and verify that the pings succeed.router1# ping router29.display the contents of flash memory on router2.a. question: what is the name of the ios image in flash and how large is it?router2# show flash10.display the history table on router

42、1. this shows the last 10 commands that were entered on the router. you can recall commands by entering ctrl-p or by hitting the up arrow key.router1# show historyrouter1# ctrl-p (to see previously entered commands)11.on router1, do a show interfaces on serial 0. note on the third line of the output

43、 that the bandwidth is assumed to be 1544kb. this is because the router assumes all serial links are t1s unless you configure otherwise. configure router1s s0 link to have a bandwidth of 64kb and then reenter the show interfaces command.router1# show interfaces serial 0router1(config)# interface ser

44、ial 0router1(config-if)# bandwidth 64router1(config-if)# clock rate 64000router1(config-if)# ctrl-zrouter1# show interfaces serial 012.on router1, add a description to interface serial 0 that says “serial link to router2”. this description will appear whenever you issue a show interfaces command for

45、 serial 0.router1(config)# interface serial 0router1(config-if)# description serial link to router2router1(config-if)# exitrouter1(config)# exitrouter1# show interfaces serial 013.configure router3 and router4:configure hostnamesconfigure an enable secret password of ciscoassign ip addresses and sub

46、net masks to serial & ethernet interfaces (see table on page 6)remember to set the clock rate on the router 3 serial 1 interface.activate serial and ethernet interfacesverify router3 can ping router1verify router3 can ping router4 save the configurations to nvram lab 3 - cdp1.in this lab, you wi

47、ll practice using cisco discovery protocol (cdp) commands to view information about directly connected neighbors.2.on router1, display summary information for router1s cdp neighbors. you should see one-line entries for both router2 and router3.router1# sh cdp neighbors 3.on router1, display detailed

48、 information about cdp neighbors. you can do this with either the show cdp neighbors detail or show cdp entry * commands.router1# show cdp neighbors detailrouter1# show cdp entry *4.on router1, display the interfaces where cdp is active. a.question: what is the cdp advertisement interval? b.question

49、: what is the holdtime interval and what does it signify?router1# show cdp interface5.on router1, change the cdp advertisement interval to 50 sec. and the holdtime interval to 170 sec. issue the show cdp interface command to verify the new timers are set correctly.router1(config)# cdp timer 50router

50、1(config)# cdp holdtime 170router1(config)# exitrouter1# sh cdp interface lab 4 telnet1.in this lab, you will practice telneting from one router to another. you will suspend telnet sessions using the ctrl-shift-6 x sequence and display active telnet sessions using the show sessions and show users co

51、mmands.2.from router1, telnet to router2 (). once into router2, issue the show users command. this command shows which remote users are telneted into this local router. you should see router1s ip address () as the user telneted into router2.router1# telnet router2>ro

52、uter2# show users3.suspend your telnet session to router2 by pressing ctrl-shift-6 and x. you should return to router1 without breaking the active telnet session. issue the show sessions command on router1. this command shows what active, but suspended, sessions you have to other routers.router2# ct

53、rl-shift-6 xrouter1# router1# show sessions4.now telnet from router1 to router3. suspend the session and return to router1. issue the show sessions command. you should now see two suspended sessions: one to router2 () and one to router3 ().router1# telnet router3>rou

54、ter3> ctrl-shift-6 xrouter1#router1# show sessions5.disconnect the two suspended sessions on router1. the number used in the disconnect command comes from the left-most column in the show sessions output. issue show sessions to see if the suspended telnet sessions have disappeared.router1# discon

55、nect 1router1# disconnect 2router1# show sessions lab 5 - tftp1.in this lab, you are going to configure pc1 as a tftp-server. you will then backup and restore router4s configuration to the tftp-server.2.under the netsim, select pc1 from the other devices drop-down menu. configure pc1 to have an ip address of with a mask of and a default-gateway of . use the winipcfg utility on the pc t