A beginner guide to setting up a Synology router | create multiple isolated WiFi networks


In this video, we’ll show you how to set up multiple separate WiFi networks on a Synology router. Network segmentation is a security measure that allows you to keeps different networks separate. Which in a home network, we use this to keep unauthorised access and data leakage to a minimum. This way, we can protect our sensitive information and keep our home network safe from hackers.

What is network segmentation?

VLAN stands for Virtual Local Area Network, which can be used to divide a physical network into multiple logical networks (VLANs). This then allows each VLAN to function as a separate network, isolating traffic from other VLANs.

The advantage of using VLAN segmentation, is that you can group devices based on their network needs, such as department, function, or security level. This then allows for improved network security, performance, and management.

  • Log into Synology Router Manager (SRM) using your administrators credentials.
  • From within the SRM open Network Center.
  • In the sidebar choose Local Network and click on the Create button.
  • First give your new isolated network a Name.

Note: It is an unwritten convention to include the VLAN ID, as part of the primary IP address to your network. For example if the primary IP address is set to 192.168.0.1, and you are using a VLAN ID of 10. Then you set the primary IP address to your isolated network to: 192.168.20.1

  • Set Local IP address to: 192.168.20.1
  • Leave the other settings on their defaults.
  • Select Next.

Note: As your router will have a number of network ports. You can assign these network ports to your isolated network. However, as we only want to create wireless isolated networks. We will no assign any of our ports to this network.

  • On Assign Ethernet ports, select Next.
  • In Create WiFi, tick Set up WiFi name (SSID) only for this network.
  • After selecting Next you will have a summary of the new isolated network you have created.
  • From the sidebar choose Traffic Control.
  • Now select AdvancedSettings.

Note: You can limit the amount of bandwidth your new isolated network can use. This can be useful to prevent a device on one of your networks, hogging the bandwidth to your internet connection. However you will need to enable Traffic Control on your router.

  • Select OK and OK again to set your bandwidth limits.
  • Under Default Policy locate and tick your new isolated network.
  • Next choose Edit and set the maximum and minimum bandwidth you want your isolated network to have.

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