Lab for CCNA / CCNP studies packet tracer lab 1.6.1
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Added: Mar 29, 2016
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Slide Content
03/27/2016
Rafat Khandaker
Cisco Academy Packet Tracer lab 1.6.1
Design network
Objectives :
• Design and document an addressing scheme based on requirements
. • Select appropriate equipment and cable the devices.
• Apply a basic configuration to the devices.
• Verify full connectivity between all devices in the topology.
• Identify layer 2 and layer 3 addresses used to switch packets.
Task 1: Design and document an addressing scheme.
Step 1: Design an addressing scheme. Based on the network requirements shown in the topology, design
an appropriate addressing scheme.
• Starting with the largest LAN, determine the size of each subnet you will need for the given host
requirement.
In this network, I plan on using the private IP space to it's maximum efficiency. I noticed we
Have a total of 120 pc hosts with 3 Router interface with 3 switches, creating a total of 123+3 (potential)
IP addresses.
Plan for B1 : 80 hosts are needed using class C subnet.
2^6 < 80 < 2^7 where last octet 2^7 = 128
We can give B1 7 bits for host, leaving 1 bit for subnet. mask = 255.255.255.128
Leaving us with host address space ( 192.168.1.1 - 192.168.1.126 )
Subnet (192.168.1.0) with Broadcast (192.168.1.127)
Plan for B2
20 hosts needed. 2^4 < 20 < 2^5
5 host bits with 3 subnet bits. mask = 255.255.255.224
Hosts ' cannot be "last octet" = ( 1-127 ) 192.168.1.128 = new subnet for B2
Hosts :128 +32 = 160 host address range ( 192.168.1.129 - 192.168.1.160 )
Subnet (128) with broadcast at (159)
Plan for HQ
40 hosts need 2^6 = 64
At-least 6 bits are needed for host address, leaving 2 bits for subnet
Mask = 255.255.255.192
Host address cannot occupy previous designs for B1 and B2
( 192.168.1.0 to 192.168.1.160 )
Start address has to be multiple of 64 = 192.168.1.192
Host address range ( 192.168.1.193 - 192.168.1.254 )
Broadcast address = 192.168.1.255
Note that Address space 160 – 192 are not in use ( Reserve serial interfaces )
• After the addresses have been determined for all the LAN subnets, assign the first available address
space to the WAN link between B1 and HQ.assign address space to the WAN link between HQ and B2.
Serial interface HQ = s2/0 192.168.1.165 ; s3/0 192.168.1.169 255.255.255.252
*I did not use the first available ip address which was .. 161.. In last octet.. * note
B1= 192.168.1.173 255.255.255.252
B2= 192.168.1.177 255.255.255.252
Step 2:
Document the addressing scheme. • Use the blank spaces on the topology to record the network
addresses in dotted-decimal/slash format. • Use the table provided in the printed instructions to
document the IP addresses, subnet masks and default gateway addresses. For the LANs, assign the first
IP address to the router interface. Assign the last IP address to the PC For the WAN links, assign the first
IP address to HQ.
Task 2: Select equipment and cable devices.
Step 1: Select the necessary equipment. Select the remaining devices you will need and add
them to the working space inside Packet Tracer. Use the labels as a guide as to where to place
the devices.
Step 2: Finish cabling the devices. Cable the networks according to the topology taking care that
interfaces match your documentation in Task 1.
Task 3: Apply a basic configuration.
Step 1: Configure the routers. Using your documentation, configure the routers with basic
configurations including addressing. Use cisco as the line passwords and class as the secret
password. Use 64000 as the clock rate.
Step 2: Configure the PCs. Using your documentation, configure the PCs with an IP address,
subnet mask, and default gateway.
Task
Packet Tracer Simulation
( after configuration )
Configuring Router HQ
Simply configure Router HQ with basic hostname, banner, password. Also, configure fast ethernet
interface with ip address I calculated at table. Make sure the interface is in no shutdown mode. We can
see that the link state is green.
This portion of the command line, I configured the serial interfaces for the WAN port and also synced
with the DCE clock rate of 64000, as documented by the lab requirements for part 2. Also made sure to
configure each interface to no shutdown. Last but not least, made sure to copy the running config to
start-up config so the router will boot with the configuration changes.
* also forgot to enable secret class on configuration settings
Copy running-config to startup-config and reload the router
RESULT OF SHOW RUN FROM HQ
Router B1
Notice that the DCE interface did not show message when configuring clock rate. This is most likely
because I connected the B1 router to supply clock rate to Router HQ through the serial interface.
Configure Router B2
After configuring B2, this is the show run status
TROUBLESHOOTING ERRORS
I noticed that the link for s3/0 was not configured properly after I entered no shutdown command for
s2/0 on B2.
Fix
After assigning s3/0 on router HQ with IP address, clock rate and no shutdown . I was able to achieve
connection green.