Bulding Network - 22/6/2016

VLSM

Subnet the given network with the following requirements:

192.168.10.0

Building 1:

·         IT – 3 PCs

·         Office – 8 PCs

Building 2:

·         Sales – 10 PCs

Routers-to-Routers – 2TPs

Solution:

SALES – 10 PCs [16-2=14] 4⁴ à S4

OFFICE – 8 PCs [16-2=14] 4⁴ à S4

IT – 3 PCs [8-2=6] 4³ à S5

Router – 2TPs [4-2=2] 4² à S4

Network Address	Host Range	Broadcast Address	Subnet Mask
192.168.10.0	192.168.10.1 - 192.168.10.14	192.168.10.15	255.255.255.240
192.168.10.16	192.168.10.17 - 192.168.10.30	192.168.10.31	255.255.255.240
192.168.10.32	192.168.10.33 - 192.168.10.38	192.168.10.39	255.255.255.248
192.168.10.40	192.168.10.41 - 192.168.10.42	192.168.10.43	255.255.255.252

Router, Network and VLAN Table
Vlan table - Sales, office and It
Network - PCs
Router Table - Building 1 and Building 2 network

Device	Interface	IP Address	Subnet Mask	Default Gateway
Sales	Vlan 1	192.168.10.14	255.255.255.240	192.168.10.1
PC 1	NIC	192.168.10.2	255.255.255.240	192.168.10.1
PC 2	NIC	192.168.10.3	255.255.255.240	192.168.10.1
PC 3	NIC	192.168.10.4	255.255.255.240	192.168.10.1
PC 4	NIC	192.168.10.5	255.255.255.240	192.168.10.1
PC 5	NIC	192.168.10.6	255.255.255.240	192.168.10.1
PC 6	NIC	192.168.10.7	255.255.255.240	192.168.10.1
PC 7	NIC	192.168.10.8	255.255.255.240	192.168.10.1
PC 8	NIC	192.168.10.9	255.255.255.240	192.168.10.1
PC 9	NIC	192.168.10.10	255.255.255.240	192.168.10.1
PC 10	NIC	192.168.10.11	255.255.255.240	192.168.10.1
Office	Vlan 1	192.168.10.30	255.255.255.240	192.168.10.17
PC 1	NIC	192.168.10.18	255.255.255.240	192.168.10.17
PC 2	NIC	192.168.10.19	255.255.255.240	192.168.10.17
PC 3	NIC	192.168.10.20	255.255.255.240	192.168.10.17
PC 4	NIC	192.168.10.21	255.255.255.240	192.168.10.17
PC 5	NIC	192.168.10.22	255.255.255.240	192.168.10.17
PC 6	NIC	192.168.10.23	255.255.255.240	192.168.10.17
PC 7	NIC	192.168.10.24	255.255.255.240	192.168.10.17
PC 8	NIC	192.168.10.25	255.255.255.240	192.168.10.17
IT	Vlan 1	192.168.10.38	255.255.255.248	192.168.10.33
PC 1	NIC	192.168.10.34	255.255.255.248	192.168.10.33
PC 2	NIC	192.168.10.35	255.255.255.248	192.168.10.33
PC 3	NIC	192.168.10.36	255.255.255.248	192.168.10.33
Building 1
IT	Fa0/0	192.168.10.33	255.255.255.248	N/A
Office	Fa1/0	192.168.10.17	255.255.255.240	N/A
	Se2/0	192.168.10.41	255.255.255.252	N/A
Building 2
Sales	Fa0/0	192.168.10.1	255.255.255.240	N/A
	Se2/0	192.168.10.42	255.255.255.252	N/A

*Notes: NIC - Network Interface Card
VLAN IP Address is always the last valid host of the network.
i.e IT Vlan 1 - IP Address is 192.168.10.38, the last valid host.
PC IP Address usually have 'running' address. in range from the  valid host range
For the Router, the IP Address of the fastEthernet is the default gateway of the switch
i.e IT Fa0/0, th eIP Address is 192.168.10.33, which is the dafault gateway for the IT Switch

IP Route Table

Network Name	Network Address	Subnet Mask	First Hop IP
Building 1
Sales	192.168.10.0	255.255.255.240	192.168.10.42
Building 2
Office	192.168.10.16	255.255.255.240	192.168.10.41
IT	192.168.10.32	255.255.255.248	192.168.10.41

For the first hop ip, get the ip address router.
i.e building 1, get serial address (Se2/0) of building 2, vice versa

Building 1

Building 2

Office Switch configuration

Sales Switch configuration

IT Switch configuration

PING
Bldg 1 Router - Bldg 2 Router

Any Office PC - Bldg 1

Any IT PC - Any Office PC

Sales Switch - Bldg 2 Router

TELNET
Any Sales PC - Office Switch

Bldg 1 Router - Sales Switch