🧠 What is a VPN (in simple words)?
Imagine you have 10 stores in different cities. You want them to work like one big office, where:
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They can share files
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Access the same system (like billing or inventory)
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Keep everything private and secure
A VPN (Virtual Private Network) is like a secret tunnel over the internet. It connects your stores to each other securely, even though they are far apart.
🏗️ Step-by-Step: How to Connect All Stores with VPN
Let’s say:
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HQ = Main Office
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Store A = One of your stores
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You want to connect Store A to HQ first
🔧 Step 1: What You Need
Item | Explanation |
---|---|
🌐 Internet | At each location (HQ and each store) |
📟 VPN Router | A special device that makes VPN connection |
🧭 Static IP Address | A fixed IP address from your internet provider (makes setup easier) |
🔐 Pre-shared Key | A secret password used to connect stores securely |
Example VPN Router Brands:
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TP-Link (easy)
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MikroTik (cheap and powerful)
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Fortinet / Cisco (professional level)
🛠️ Step 2: Choose One Store to Start (e.g., Store A)
We’ll connect Store A to HQ first. Then later you repeat the same steps for other stores.
🖥️ Step 3: Set Up the HQ VPN Router (the “server”)
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Plug the router into internet and turn it on
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Connect your laptop to the router with a cable (or Wi-Fi)
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Open your browser and go to router’s address (usually
192.168.1.1
) -
Login with default username & password (usually written on the router)
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Go to the VPN settings
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Choose Site-to-Site VPN or IPSec VPN
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Fill in:
Field | Example Value |
---|---|
Local Network | 192.168.1.0/24 (your HQ’s internal IP range) |
Remote Network | 192.168.2.0/24 (Store A’s IP range) |
Remote IP Address | Store A’s public IP |
Pre-shared Key | MySecretPassword |
Encryption | AES256 |
Authentication | SHA256 |
✅ Save the settings. VPN is ready on HQ side!
🏪 Step 4: Set Up the Store A VPN Router (the “client”)
Same steps again, but reverse the roles:
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Connect to the Store A router
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Go to VPN settings
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Fill in:
Field | Example Value |
---|---|
Local Network | 192.168.2.0/24 (Store A's internal network) |
Remote Network | 192.168.1.0/24 (HQ’s network) |
Remote IP Address | HQ’s public IP |
Pre-shared Key | MySecretPassword |
Match encryption | AES256 |
Match authentication | SHA256 |
✅ Save settings and connect VPN
✅ Step 5: Test the Connection
From a PC in Store A:
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Open Command Prompt
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Type:
ping 192.168.1.10
(Replace with a computer IP in HQ)
If it replies, your VPN is working!
🧱 Simple Diagram
[Store A Router] <==VPN Tunnel==> [HQ Router]
| |
Devices Devices
(192.168.2.x) (192.168.1.x)
You repeat the same process for Store B, Store C, etc., each with a unique internal IP:
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Store B:
192.168.3.0/24
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Store C:
192.168.4.0/24
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And so on…
🔐 VPN Summary for Beginners
What It Is | Your Store Setup |
---|---|
VPN | A secure tunnel between stores |
VPN Router | Device that builds the tunnel |
IPSec | The technology for secure connection |
Pre-shared Key | The password for security |
Static IP | Helps routers find each other easily |
👇 What You Can Do Next
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Tell me which VPN router brand you’re using or planning to buy.
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I’ll give you exact screenshots/instructions for that model.
Or if you'd like, I can:
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Draw a full network diagram for all 10 stores
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Recommend router models and prices
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Help you set up remote access, CCTV, or POS over VPN
What would you like to do next?
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