ccna2 lab inst 3 1 5 en

8/2/2019 CCNA2 Lab Inst 3 1 5 En

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36 - 833 CCNA 2: Routers and Routing Basics v 3.1 - Lab 3.1.5 Copyright 2003, Cisco Systems, Inc.

Lab 3.1.5 Configuring a Serial Interface Instructor Version 2500

Objective

Configure a serial interface on each of two routers so they can communicate.

Background/Preparation

Any router that meets the interface requirements may be used. Possible routers include 800, 1600,1700, 2500, 2600 routers, or a combination. Refer to the chart at the end of the lab to correctlyidentify the interface identifiers to be used based on the equipment in the lab. The configurationoutput used in this lab is produced from 1721 series routers. Any other router used may produceslightly different output. The following steps are intended to be executed on each router unlessspecifically instructed otherwise.

Start a HyperTerminal session as performed in the Establishing a HyperTerminal session lab.

Note: Go to the erase and reload instructions at the end of this lab. Perform those steps on allrouters in this lab assignment before continuing.

Step 1 Basic Router Configuration

a. Configure the router. Connect the routers as shown in the diagram. This lab requires a null serialcable and two rollover or console cables.


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Step 2 Configure the name and passwords for Router 1

a. On Router 1, enter the global configuration mode and configure the hostname as shown in thechart.

b. Configure the console, virtual terminal and enable passwords. If there are any problems, refer tothe Lab 3.1.3 Configuring Router Passwords.

Step 3 Configure serial interface Serial 0

From global configuration mode, configure serial interface Serial 0 on Router GAD. Refer to InterfaceSummary.

GAD(config)#interface serial 0

GAD(config-if)#ip address 192.168.15.1 255.255.255.0

GAD(config-if)#clock rate 56000

GAD(config-if)#no shutdown

GAD(config-if)#exit

GAD(config)#exit

Note: Once the interface configuration mode is entered, note the IP address of the interface.Enter the subnet mask. Enter the clock rate only on the DCE side of the device. The commandno shutdown turns on the interface. The command shutdown turns the interface off.

Step 4 Save the running configuration

Save the running configuration to the startup configuration at the privileged EXEC mode:

GAD#copy running-config startup-config

Note: Save the running configuration for the next time that the router is restarted. The router can

be restarted either by a software reload command or a power shutdown. The running

configuration will be lost if the running configuration is not saved. The router uses the startupconfiguration when the router is started.

Step 5 Display information about Serial interface 0 on GAD

a. Enter the command show interface serial 0 on GAD. Refer to interface chart.

GAD#show interface serial 0

This will show the details of interface serial 0.

b. List at least three details discovered by issuing this command.

c. Serial 0 is down. Line protocol is down.

d. Internet address is 192.168.15.1/24.

e. Encapsulation HDLC

f. To what OSI layer is the Encapsulation referring? Data Link

g. If the Serial interface was configured, why did the show interface serial 0 say that the

interface is down? The other end of the serial link has not been configured.


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a. On the Birmingham router, enter the global configuration mode. Configure hostname, console,virtual terminal and enable passwords as shown in the previous chart.


From the global configuration mode, configure serial interface Serial 0 on Router BHM. Refer tointerface chart.

BHM(config)#interface serial 0

BHM(config-if)#ip address 192.168.15.2 255.255.255.0

BHM(config-if)#no shutdown

BHM(config-if)#exit

BHM(config)#exit



BHM#copy running-config startup-config

Step 9 Display information about Serial interface 0 on BHM

a. Enter the command show interface serial 0 on BHM. Refer to interface chart.

BHM#show interface serial 0



c. Serial 0 is up, line protocol is up.



f. What is the difference in the Line and Protocol status recorded on GAD earlier? Why?

Both are now listed as up because a carrier signal is detected from the BHM router.

Step 10 Verify that the serial connection is functioning

a. ping the serial interface of the other router.

BHM#ping 192.168.15.1

GAD#ping 192.168.15.2

b. From GAD, ping the BHM router serial interface. Does the ping work? Yes

c. From BHM, ping the GAD router serial interface. Does the pingwork? Yes

d. If the answer is no for either question, troubleshoot the router configurations to find the error.Then ping the interfaces again until the answer to both questions is yes.

Upon completion of the previous steps, logoff by typing exit. Turn the router off. Remove and storethe cables and adapter.


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Erasing and reloading the router

Enter into the privileged EXEC mode by typing enable.

If prompted for a password, enterclass.If class does not work, ask the instructor for assistance.

Router>enable

At the privileged EXEC mode, enter the command erase startup-config.

Router#erase startup-config

The responding line prompt will be:

Erasing the nvram filesystem will remove all files! Continue?

[confirm]

Press Enterto confirm.

The response should be:

Erase of nvram: complete

Now at the privileged EXEC mode, enter the command reload.

Router#reload


System configuration has been modified. Save? [yes/no]:

Type n and then press Enter.


Proceed with reload? [confirm]


In the first line of the response will be:

Reload requested by console.

After the router has reloaded the line prompt will be:

Would you like to enter the initial configuration dialog? [yes/no]:



Press RETURN to get started!

Press Enter.

The router is ready for the assigned lab to be performed.


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Router Interface Summary

RouterModel

EthernetInterface #1


SerialInterface #1

SerialInterface #2

Interface#5

800 (806) Ethernet 0 (E0) Ethernet 1 (E1)

1600 Ethernet 0 (E0) Ethernet 1 (E1) Serial 0 (S0) Serial 1 (S1)

1700 FastEthernet 0 (FA0) FastEthernet 1 (FA1) Serial 0 (S0) Serial 1 (S1)


2600 FastEthernet 0/0(FA0/0)

FastEthernet 0/1 (FA0/1) Serial 0/0 (S0/0) Serial 0/1(S0/1)

In order to find out exactly how the router is configured, look at the interfaces. This will identify the type of routeras well as how many interfaces the router has. There is no way to effectively list all of the combinations ofconfigurations for each router class. What is provided are the identifiers for the possible combinations of interfacesin the device. This interface chart does not include any other type of interface even though a specific router maycontain one. An example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviationthat can be used in IOS command to represent the interface.


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GAD#show running-config

Building configuration...

Current configuration : 567 bytes

!

version 12.1

no service single-slot-reload-enable

service timestamps debug uptime

service timestamps log uptimeno service password-encryption

!

hostname GAD

!

enable secret 5 $1$OgQo$B5wDMtkHcHBxhNvHDkFZm.

enable password cisco

!

!

ip subnet-zero

!

interface Ethernet0

no ip address

shutdown

!interface Serial0

ip address 192.168.15.1 255.255.255.0

no fair-queue

clockrate 56000

!

interface Serial1

no ip address

shutdown

!

ip classless

ip http server

!

!line con 0

password cisco

login

line aux 0

line vty 0 4

password cisco

login

!

end


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GAD#show interfaces Serial 0

Serial0 is up, line protocol is up

Hardware is HD64570

Internet address is 192.168.15.1/24

MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation HDLC, loopback not set

Keepalive set (10 sec)

Last input 00:00:04, output 00:00:02, output hang neverLast clearing of "show interface" counters 00:03:32

Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

Queueing strategy: fifo

Output queue :0/40 (size/max)

5 minute input rate 0 bits/sec, 0 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

9 packets input, 1208 bytes, 0 no buffer

Received 9 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

14 packets output, 2085 bytes, 0 underruns

0 output errors, 0 collisions, 3 interface resets

0 output buffer failures, 0 output buffers swapped out

4 carrier transitions

DCD=up DSR=up DTR=up RTS=up CTS=up

GAD#ping 192.168.15.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.15.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 36/36/36 ms

GAD#show interfaces Ethernet 0

Ethernet0 is administratively down, line protocol is downHardware is Lance, address is 00e0.b055.ff85 (bia 00e0.b055.ff85)



Encapsulation ARPA, loopback not set


ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:03:18, output 00:03:18, output hang never

Last clearing of "show interface" counters never






11 packets input, 6798 bytes, 0 no bufferReceived 11 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 input packets with dribble condition detected



0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier



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BHM#show running-config



!

version 12.1

no service single-slot-reload-enable


service timestamps log uptimeno service password-encryption

!

hostname BHM

!

enable secret 5 $1$HelO$lBy9rBJqS1ecUCCpKQ9R..

enable password cisco

!!

ip subnet-zero

!

interface Ethernet0

no ip address

shutdown

!

interface Serial0no ip address

no fair-queue

!

interface Serial1

ip address 192.168.15.2 255.255.255.0

!

interface BRI0

no ip address

shutdown

!

ip classless

ip http server

!line con 0

password cisco

login

line aux 0

line vty 0 4

password cisco

login

!

end

BHM#show interfaces Serial 1

Serial1 is up, line protocol is upHardware is HD64570









Queueing strategy: weighted fair


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Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/2/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)






90 packets output, 6410 bytes, 0 underruns0 output errors, 0 collisions, 15 interface resets




BHM#ping 192.168.15.1



!!!!!


BHM#show interfaces Ethernet 0

Ethernet0 is administratively down, line protocol is down

Hardware is Lance, address is 0000.0c3b.a008 (bia 0000.0c3b.a008)









Queueing strategy: fifoOutput queue :0/40 (size/max)













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Lab 3.1.5 Configuring a Serial Interface Instructor Version 2600

Objective

Configure a serial interface on each of two routers so they can communicate.

Background/Preparation

Any router that meets the interface requirements may be used. Possible routers include 800, 1600,1700, 2500, 2600 routers, or a combination. Refer to the chart at the end of the lab to correctlyidentify the interface identifiers to be used based on the equipment in the lab. The configurationoutput used in this lab is produced from 1721 series routers. Any other router used may produceslightly different output. The following steps are intended to be executed on each router unlessspecifically instructed otherwise.

Start a HyperTerminal session as performed in the Establishing a HyperTerminal session lab.

Note: Go to the erase and reload instructions at the end of this lab. Perform those steps on allrouters in this lab assignment before continuing.

Step 1 Basic Router Configuration

a. Configure the router. Connect the routers as shown in the diagram. This lab requires a null serialcable and two rollover or console cables.


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a. On Router 1, enter the global configuration mode and configure the hostname as shown in thechart.

b. Configure the console, virtual terminal and enable passwords. If there are any problems, refer tothe Lab 3.1.3 Configuring Router Passwords.


From global configuration mode, configure serial interface Serial 0 on Router GAD. Refer to InterfaceSummary.

GAD(config)#interface serial 0/0

GAD(config-if)#ip address 192.168.15.1 255.255.255.0

GAD(config-if)#clock rate 56000

GAD(config-if)#no shutdown

GAD(config-if)#exit

GAD(config)#exit

Note: Once the interface configuration mode is entered, note the IP address of the interface.Enter the subnet mask. Enter the clock rate only on the DCE side of the device. The commandno shutdown turns on the interface. The command shutdown turns the interface off.



GAD#copy running-config startup-config

Note: Save the running configuration for the next time that the router is restarted. The router can

be restarted either by a software reload command or a power shutdown. The running

configuration will be lost if the running configuration is not saved. The router uses the startupconfiguration when the router is started.

Step 5 Display information about Serial interface 0 on GAD

a. Enter the command show interface serial 0/0 on GAD. Refer to interface chart.

GAD#show interface serial 0/0



c. Serial 0 is down. Line protocol is down.



f. To what OSI layer is the Encapsulation referring? Data Link

g. If the Serial interface was configured, why did the show interface serial 0/0say that the

interface is down? The other end of the serial link has not been configured.


a. On the Birmingham router, enter the global configuration mode. Configure hostname, console,virtual terminal and enable passwords as shown in the previous chart.


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From the global configuration mode, configure serial interface Serial 0 on Router BHM. Refer tointerface chart.

BHM(config)#interface serial 0/0

BHM(config-if)#ip address 192.168.15.2 255.255.255.0

BHM(config-if)#no shutdown

BHM(config-if)#exit

BHM(config)#exit



BHM#copy running-config startup-config

Step 9 Display information about Serial interface 0 on BHM

a. Enter the command show interface serial 0/0 on BHM. Refer to interface chart.

BHM#show interface serial 0/0



c. Serial 0 is up, line protocol is up.



f. What is the difference in the Line and Protocol status recorded on GAD earlier? Why?

Both are now listed as up because a carrier signal is detected from the BHM router,

Step 10 Verify that the serial connection is functioning

a. ping the serial interface of the other router.

BHM#ping 192.168.15.1

GAD#ping 192.168.15.2

b. From GAD, ping the BHM router serial interface. Does the ping work? Yes

c. From BHM, ping the GAD router serial interface. Does the pingwork? Yes

d. If the answer is no for either question, troubleshoot the router configurations to find the error.Then ping the interfaces again until the answer to both questions is yes.

Upon completion of the previous steps, logoff by typing exit. Turn the router off. Remove and storethe cables and adapter.


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Erasing and reloading the router

Enter into the privileged EXEC mode by typing enable.

If prompted for a password, enterclass.If class does not work, ask the instructor for assistance.

Router>enable

At the privileged EXEC mode, enter the command erase startup-config.

Router#erase startup-config


Erasing the nvram filesystem will remove all files! Continue?

[confirm]


The response should be:

Erase of nvram: complete

Now at the privileged EXEC mode, enter the command reload.

Router#reload


System configuration has been modified. Save? [yes/no]:



Proceed with reload? [confirm]


In the first line of the response will be:

Reload requested by console.

After the router has reloaded the line prompt will be:

Would you like to enter the initial configuration dialog? [yes/no]:



Press RETURN to get started!

Press Enter.

The router is ready for the assigned lab to be performed.


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Router Interface Summary

RouterModel



SerialInterface #1

SerialInterface #2

Interface#5

800 (806) Ethernet 0 (E0) Ethernet 1 (E1)


1700 FastEthernet 0 (FA0) FastEthernet 1 (FA1) Serial 0 (S0) Serial 1 (S1)


2600 FastEthernet 0/0(FA0/0)

FastEthernet 0/1 (FA0/1) Serial 0/0 (S0/0) Serial 0/1(S0/1)

In order to find out exactly how the router is configured, look at the interfaces. This will identify the type of routeras well as how many interfaces the router has. There is no way to effectively list all of the combinations ofconfigurations for each router class. What is provided are the identifiers for the possible combinations of interfacesin the device. This interface chart does not include any other type of interface even though a specific router maycontain one. An example of this might be an ISDN BRI interface. The string in parenthesis is the legal abbreviationthat can be used in IOS command to represent the interface.


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GAD#show running-config



!

version 12.2


service timestamps log uptime

no service password-encryption!

hostname GAD

!

enable secret 5 $1$d5a1$W3UB2Z5FI76zkcpgY0nXw1

!

ip subnet-zero

!

call rsvp-sync

!

interface FastEthernet0/0

no ip address

shutdown

duplex auto

speed auto!

interface Serial0/0

ip address 192.168.15.1 255.255.255.0

no fair-queue

clockrate 56000

!


no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/1no ip address

!

ip classless

ip http server

!

dial-peer cor custom

!

line con 0

password cisco

login

line aux 0

line vty 0 4

password cisco

login!

end


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GAD#show interface serial 0/0

Serial0/0 is up, line protocol is up

Hardware is PowerQUICC Serial






Last input 00:00:02, output 00:00:02, output hang neverLast clearing of "show interface" counters 04:32:31














GAD#ping 192.168.15.2



!!!!!


GAD#show interfaces fastEthernet 0/0

FastEthernet0/0 is administratively down, line protocol is downHardware is AmdFE, address is 0007.eb38.15e0 (bia 0007.eb38.15e0)





Auto-duplex, Auto Speed, 100BaseTX/FX


Last input never, output 04:18:23, output hang never






5 minute output rate 0 bits/sec, 0 packets/sec0 packets input, 0 bytes



0 watchdog








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BHM#show running-config



!

version 12.2


service timestamps log uptime

no service password-encryption!

hostname BHM

!

enable secret 5 $1$FEj.$QR8mnIciBNgp6fR6aWpKJ.

!

ip subnet-zero

!

call rsvp-sync

!


no ip address

duplex auto

speed auto

!interface Serial0/1

no ip address

no fair-queue

!


no ip address

duplex auto

speed auto

!

interface Serial0/0

ip address 192.168.15.2 255.255.255.0

!

ip classlessip http server

!

dial-peer cor custom

!

line con 0

password cisco

login

line aux 0

line vty 0 4

password cisco

login

!

end

BHM#show interfaces serial 0/0

Serial0/1 is up, line protocol is up

Hardware is PowerQUICC Serial







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459 833 CCNA 2: Routers and Routing Basics v 3 1 Lab 3 1 5 Copyright 2003 Cisco Systems Inc




Queueing strategy: weighted fair

Output queue: 0/1000/64/0 (size/max total/threshold/drops)

Conversations 0/2/32 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

Available Bandwidth 96 kilobits/sec

5 minute input rate 0 bits/sec, 0 packets/sec5 minute output rate 0 bits/sec, 0 packets/sec









BHM#ping 192.168.15.1

Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 192.168.15.1, timeout is 2 seconds:

!!!!!


BHM#show interfaces fastEthernet 0/0

FastEthernet0/0 is up, line protocol is up

Hardware is AmdFE, address is 0005.3201.94c0 (bia 0005.3201.94c0)




Keepalive set (10 sec)Full-duplex, 100Mb/s, 100BaseTX/FX









2043 packets input, 835659 bytes



0 watchdog

0 input packets with dribble condition detected29047 packets output, 2143110 bytes, 0 underruns





ccna2 lab inst 3 1 5 en

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