Urvish Patel

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Project Overview

XYZ Company is a fast-growing food trading business with global customers. The company planned a new branch in Bonalbo (Eastern Australia), requiring a small but secure and scalable network. The goal was to design a branch office network that operates independently of the HQ, supports multiple departments, and ensures seamless communication across wired and wireless devices.

Network Requirements

  • One Cisco Router (2911) and one Cisco Switch (2960).
  • Three departments:
    • Admin/IT (VLAN 10)
    • Finance/HR (VLAN 20)
    • Customer Service/Reception (VLAN 30)
  • Each department must have its own VLAN & subnet.
  • Each department must have a wireless access point (WPA2-PSK).
  • Devices obtain IP addresses automatically using DHCP.
  • Inter-VLAN routing configured so all departments can communicate.

IP Addressing & Subnetting

Subnetting

  • Base Network: 168.1.0/24
    Borrowed 2 subnet bits → /26
VLAN / Department
Subnet ID
Gateway IP
Broadcast
Host Range

VLAN 10 (Admin/IT)

192.168.1.0

192.168.1.1

192.168.1.63

192.168.1.2 – 62

VLAN 20 (Finance)

192.168.1.64

192.168.1.65

192.168.1.127

192.168.1.66 – 126

VLAN 30 (CS/Reception)

192.168.1.128

192.168.1.129

192.168.1.191

192.168.1.130 – 190

VLAN & Switch Configuration

Switch> enable
Switch# configure terminal

! VLAN assignment
int range fa0/2-4
switchport mode access
switchport access vlan 10

int range fa0/5-7
switchport mode access
switchport access vlan 20

int range fa0/8-10
switchport mode access
switchport access vlan 30

! Trunk port to Router
int fa0/1
switchport mode trunk

do wr

Router-on-a-Stick (Inter-VLAN Routing)

Router> enable
Router# configure terminal

int gig0/0
no shutdown

! VLAN 10 (Admin)
int gig0/0.10
encapsulation dot1Q 10
ip address 192.168.1.1 255.255.255.192

! VLAN 20 (Finance)
int gig0/0.20
encapsulation dot1Q 20
ip address 192.168.1.65 255.255.255.192

! VLAN 30 (CS/Reception)
int gig0/0.30
encapsulation dot1Q 30
ip address 192.168.1.129 255.255.255.192

do wr

DHCP Configuration

service dhcp

ip dhcp pool Admin-Pool
network 192.168.1.0 255.255.255.192
default-router 192.168.1.1
dns-server 192.168.1.1
domain-name Admin.com

ip dhcp pool Finance-Pool
network 192.168.1.64 255.255.255.192
default-router 192.168.1.65
dns-server 192.168.1.65
domain-name Finance.com

ip dhcp pool CS-Pool
network 192.168.1.128 255.255.255.192
default-router 192.168.1.129
dns-server 192.168.1.129
domain-name CS.com

Wireless Configuration

Admin/IT WiFi → SSID: Admin-WIFI, WPA2

Finance/HR WiFi → SSID: Finance-WIFI, WPA2

CS/Reception WiFi → SSID: CS-WIFI, WPA2

Conclusion

This project successfully designed and implemented a scalable SOHO branch office network with VLAN segmentation, inter-VLAN routing, DHCP automation, and wireless access. The setup ensures security, flexibility, and efficient IP management, making it ideal for XYZ Company’s new Bonalbo branch.

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