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TOPIC: Cisco Lab on Subnetting

Cisco Lab on Subnetting 6 years 3 months ago #35319

  • ninja1990
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I am working on a lab and I am stuck. I am not looking for the answers I am looking to be able to understand where I am making my mistake.
____________________________________________
In this lab, you have been given the network address 192.168.9.0/24 to subnet and provide the IP addressing for the network shown in the Topology Diagram. The network has the following addressing requirements:

• The BRANCH1 LAN 1 will require 10 host IP addresses.
• The BRANCH1 LAN 2 will require 10 host IP addresses.
• The BRANCH2 LAN 1 will require 10 host IP addresses.
• The BRANCH2 LAN 2 will require 10 host IP addresses.
• The HQ LAN will require 20 host IP addresses.
• The link from HQ to BRANCH1 will require an IP address for each end of the link.
• The link from HQ to BRANCH2 will require an IP address for each end of the link.


I chose this as my topology table:
Network Address Host Address Range Broadcast Address
1 192.168.9.0 192.168.9.1 192.168.9.14 192.168.9.15
2 192.168.9.16 192.168.9.17 192.168.9.30 192.168.9.31
3 192.168.9.32 192.168.9.33 192.168.9.46 192.168.9.47
4 192.168.9.48 192.168.9.49 192.168.9.62 192.168.9.63
5 192.168.9.64 192.168.9.65 192.168.9.78 192.168.9.79
6 192.168.9.80 192.168.9.81 192.168.9.94 192.168.9.95
7 192.168.9.96 192.168.9.97 192.168.9.110 192.168.9.111


Next is this
Step 1. Assign addresses to the HQ router.

• Assign the first valid host address in the HQ LAN subnet to the LAN interface.
• Assign the first valid host address in Link from HQ to Branch 1 subnet to the S0/0 interface.
• Assign the first valid host address in Link from HQ to Branch 2 subnet to the S0/1 interface.
Note:Use a clockrate of 64000
Step 2. Assign addresses to the Branch 1 router.

• Assign the first valid host address in the Branch 1 LAN 1 subnet to the Fa0/0 LAN interface.
• Assign the first valid host address in the Branch 1 LAN 2 subnet to the Fa0/1 LAN interface.
• Assign the last valid host address in Link from HQ to Branch 1 subnet to the WAN interface.
Step 3. Assign addresses to the Branch 2 router.

• Assign the first valid host address in the Branch 2 LAN 1 subnet to the Fa0/0 LAN interface.
• Assign the first valid host address in the Branch 2 LAN 2 subnet to the Fa0/1 LAN interface.
• Assign the last valid host address in Link from HQ to Branch 2 subnet to the WAN interface.

I chose these
HQ:
FA0/0:192.168.9.65/28
Ser0/0(B1):192.168.9.81/28
Ser0/1(B2):192.168.9.97/28(Incorrect)

B1:
FA0/0:192.168.9.1/28 (Incorrect)
FA0/1:192.168.9.17/28 (Incorrect)
Ser0/0:192.168.9.94/28

B2:
FA0/0:192.168.9.33/28
FA0/1:192.168.9.49/28 (Incorrect)
Ser0/1:192.168.9.110/28 (Incorrect)

All the subnet masks are correct, so I know my VLSM is correct ( although I do not understand why 16 is used instead of 4 for the WAN links...)
Here is a picture of the lab:


Thanks for reading this enormous mess and for any help.
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Re: Cisco Lab on Subnetting 6 years 3 months ago #35330

  • ninja1990
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Figured it out
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