CCNA
SCENARIO for BTEGITIM REMOTE LAB v2.0
1. SCENARIO: ACME COMPANY
Purpose: This lab is designed to help you to deal with simulation question you
will face if you take the CCNA Exam (640-607). It will also improve your
practical skills on the following Cisco Networking Academy Program topics:
- Basic Router configuration
- RIP
Description: Acme Inc.
is a multinational company, whose headquarters are located in Istanbul. The
company demands end-to-end connectivity
between headquarters and the two branch offices, Berlin and Paris.
Objective: Fulfill
the basic configuration tasks on Istanbul, Berlin and Paris Routers. Provide
end-to-end connectivity inside the company’s network using RIP as routing
protocol.
Tasks:
1. Erase initial router configurations
2. Configure Hostname; enable, vty and console
passwords.
3. a. Configure interfaces by assigning them
the appropriate IP Addresses given in the topology
b. Check whether the serial interfaces are DCE or DTE. Set clock rate if
required.
4. (Optional) Use the ping
command to check the connectivity with neighboring router’s serial interface.
5. a. Configure RIP to
provide end-to-end connectivity
b. Check end-to-end connectivity
6. Save your configurations
into router’s NVRAM
2.
TOPOLOGY
3. CONFIGURATION
!!! Important Note for the CCNA Exam: In this lab
you are going to configure three Routers. Typically in the exam you are responsible
for configuring only one router.
Note: Before you
start the lab, make sure that you are familiar with the commands listed below.
|
Basic
Commands |
Line
Commands |
Interface
Commands |
Routing
protocol configuration commands |
Show
Commands |
Debug
Commands |
|
erase
start |
line vty |
interface |
router
rip |
show
controllers |
Debug ip igrp
events |
|
copy run
start |
line
console |
ip
address |
network |
show ip
route |
Debug ip igrp status |
|
reload |
login |
shutdown |
|
|
|
|
enable |
password |
clock
rate |
|
|
|
|
conf t |
|
|
|
|
|
|
hostname |
|
|
|
|
|
|
end |
|
|
|
|
|
|
ping |
|
|
|
|
|
|
telnet |
|
|
|
|
|
Task: Erase
initial router configurations.
Task: Configure
Hostname; enable, vty and console passwords. All passwords will be set to
‘btegitim’
Task a: Configure
interfaces by assigning them the appropriate IP Addresses given in the
topology. In order to save time you can use the table below as a shortcut:
|
BERLIN |
|
|
ISTANBUL |
|
|
PARIS |
|
|
Serial 0 |
192.168.1.2/24 |
|
Serial
0/0 |
192.168.1.1/24 |
|
Serial 0 |
172.16.1.2/16 |
|
Ehernet 0 |
201.1.1.1/24 |
|
Serial
0/1 |
172.16.1.1/16 |
|
Ehernet 0 |
203.1.1.1/24 |
|
|
|
|
Ethernet
0/0 |
202.1.1.1/24 |
|
|
|
Task b: Check whether the serial interfaces are DCE or DTE. It is required to
set the clock rate on DCE interfaces.
Note: Before making any further
configurations, it’s a good idea to check connectivity between routers by
sending icmp echo request (ping) packets to serial interfaces. However, before
any tests can be made you should configure the first three steps on
Task: Use the ping command to check the
connectivity with neighboring router’s serial interface.
Task
a: Configure
RIP to provide end-to-end connectivity
Task
b: Check
end-to-end connectivity. At
Task: Save your configurations into
router’s NVRAM (Repeat this step on each Router)
4. SOLUTIONS
Router#
Router#erase start
Erasing the nvram filesystem will remove all files!
Continue? [confirm]
[OK]
Erase of nvram: complete
Router#reload
System configuration has been modified. Save? [yes/no]:
n
Proceed with reload? [confirm]
System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE
Copyright (c) 1986-1995 by cisco Systems
Router>enable
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname
HD unit 0, idb = 0x9F514, driver structure
at 0xA31C0
buffer size 1524 HD unit 0, V.35 DCE cable
cpb = 0x21, eda = 0x4940, cda = 0x4800
RX ring with 16 entries at 0x214800
00 bd_ptr=0x4800 pak=0x106648 ds=0x21EC68
status=80 pak_size=0
!Output Omitted for simplicity
Enter configuration
commands, one per line. End with CNTL/Z.
%SYS-5-CONFIG_I:
Configured from console by console
HD unit 0, idb =
0x9F514, driver structure at 0xA31C0
buffer size 1524 HD unit 0, V.35 DCE cable, clockrate 64000
cpb = 0x21, eda =
0x4940, cda = 0x4800
RX ring with 16
entries at 0x214800
00 bd_ptr=0x4800
pak=0x106648 ds=0x21EC68 status=80 pak_size=0
!Output Omitted for simplicity
Note: Do not set
clock rate on DTE interfaces.
On
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout
is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip
min/avg/max = 28/30/32 ms
On
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout
is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max
= 28/29/32 ms
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.2, timeout
is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip
min/avg/max = 28/29/32 ms
On
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout
is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip
min/avg/max = 28/29/32 ms
Note: Considering our lab environment,
failure of a ping request indicates most probably a faulty cable or an unset
clock rate value. In real production networks however, there may be other
reasons which influence connectivity like misconfigured access-lists, etc.
On
On
Router 2:
On
Router 3:
Codes: C - connected, S - static, I - IGRP, R - RIP, M
- mobile, B - BGP
D -
EIGRP, EX - EIGRP external, O -
N1 - OSPF
NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF
external type 1, E2 - OSPF external type 2, E - EGP
i -
IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, * - candidate default
U -
per-user static route, o - ODR
Gateway of last resort is not set
C
201.1.1.0/24 is directly connected, Ethernet0
R
203.1.1.0/24 [120/2] via 192.168.1.1,
R 172.16.0.0/16 [120/1] via 192.168.1.1,
R
202.1.1.0/24 [120/1] via 192.168.1.1,
C
192.168.1.0/24 is directly connected, Serial0
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 203.1.1.1, timeout
is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip
min/avg/max = 56/57/60 ms
!!! Important Note for the CCNA Exam: It’s a common mistake to write this
command as:
Your router will accept this command and indicate no error message.
Furthermore, you won’t encounter any problems in connectivity. However look at
the output of show run:
!
router rip
network 172.16.0.0
network
192.168.1.0
network
202.1.1.0
!
172.16 is a B class IP address and the network command is classless, so
the last two octets of the IP address 172.16 will be neglected.
Although this may cause not much trouble in the real world, it will
definitely reduce your score in the CCNA exam.
Solution for Step 6
Destination filename [startup-config]?
Building configuration...
[OK]
5. COMPLETE CONFIGURATIONS
Note: If you can’t fulfill the required
tasks by following the step-by-step instructions, you can upload the
configurations listed below to the appropriate routers and provide
connectivity. To do this:
1.
Copy the configurations
to the clipboard.
2.
Paste the configuration
while the Router is in global config mode.
BERLIN
!
version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname BERLIN
!
enable secret 5 $1$56AM$rhB5dH1DVpK7/UnDPiyTj1
!
ip subnet-zero
!
!
!
interface Ethernet0
ip address
201.1.1.1 255.255.255.0
no ip
directed-broadcast
no shutdown
!
interface Serial0
ip address
192.168.1.2 255.255.255.0
no ip
directed-broadcast
clockrate 64000
no shutdown
!
interface Serial1
no ip address
no ip
directed-broadcast
shutdown
!
interface Ethernet0/0
ip address
201.1.1.1 255.255.255.0
no ip
directed-broadcast
no shutdown
!
interface Serial0/0
ip address
192.168.1.2 255.255.255.0
no ip
directed-broadcast
no ip
mroute-cache
no fair-queue
clockrate 64000