To link IP cameras to computers without using a Network Video Recorder (NVR) or the internet, you can set up a direct connection between the cameras and the computer using a local network. Here's a general guide on how you can achieve this:

Requirements:

i. IP Cameras: Make sure your IP cameras are connected to the same local network as your computer.

2. Router: You need a router to establish a local network. Connect both your computer and IP cameras to the router using Ethernet cables.

3. Ethernet Cables: Use Ethernet cables to connect the IP cameras and the computer to the router.

4. Power Supplies: Ensure that your IP cameras are powered on.

 Steps:

 1. Connect Cameras to the Router:

Ø Plug in the Ethernet cables from each IP camera into the available LAN ports on the router.

Ø If your IP cameras support Power over Ethernet (PoE), you can use a PoE switch or injector to provide power and network connectivity with a single cable.

 2. Connect Computer to the Router:

Connect your computer to the router using an Ethernet cable.

 3. Assign Static IP Addresses:

  Access your router's settings through a web browser. The router's IP address is typically something like 192.168.1.1. Refer to your router's manual for specific instructions.

Ø Within the router settings, assign static IP addresses to each IP camera. This ensures that the IP addresses of the cameras remain constant.

Ø Note the IP addresses assigned to each camera.

 4. Configure Camera Software on the Computer:

Ø Download and install the camera management software provided by the camera manufacturer. This software is usually available on the manufacturer's website.

 

Ø Open the camera management software and add cameras using the static IP addresses assigned in Step 3.

 5. View Camera Feeds:

   Once the cameras are added to the software, you should be able to view the camera feeds directly on your computer.

 Notes:

Ø This setup is suitable for a small-scale local surveillance system.

Ø Make sure that your computer's firewall allows communication with the cameras.

Ø If you want to access camera feeds remotely, you may need to set up port forwarding on your router. However, for local viewing without internet access, this is not necessary.

Remember that the exact steps may vary depending on the brand and model of your IP cameras and router. Refer to the user manuals for specific instructions tailored to your equipment.