QNAP Systems, Inc. - Network Attached Storage (NAS)



How to use and set up your Network & Virtual switch?


Network & Virtual Switch integrates the management of IPv4, IPv6, Wi-Fi* and Thunderbolt in conjunction with a virtual switch. Network & Virtual Switch provides a central location where you can create, configure, and manage network connections, enabling you to connect your computer or device to both local and remote networks. The easy-to-use and intuitive graphical user interface allows you to quickly understand the status of network connections. This article describes the tasks and procedures for administering Network & Virtual Switch.

*This function is only available on certain models.

1. Overview

To access Network & Virtual Switch, log into the NAS as an administrator, and then go to “Control Panel” > “Network”> “Network & Virtual Switch”.

In the “Overview” page, you can view the current network connection status, download/upload speed, and the network topology. As shown in the below diagram, the system’s default gateway is configured on Adapter 1 and connections to the Internet are through this interface. The diagram also shows that Adapter 2 and Adapter 3 are connected to other devices. Virtual switches created by Container Station and Virtualization Station are also displayed here.

More information about the network adapters can be displayed by clicking “More” on the right-hand side.

On the TBS-453A, Adapter 2 has a built-in physical switch and it is displayed as the following:

Click on the adapter to see its location.

You can also obtain bandwidth information of each LAN port on the adapter.

2. Interfaces

It shows the network adapter’s basic settings such as the IP address, NAS server address, Port Trunking, and IPv6 settings. Use virtual switches to bridge network connections so that they can communicate. For example, you can create a bridge between an Internet connection and a network connection to allow other devices to connect to the Internet.

a. Configure a network adapter

To configure a network adapter's settings (for example: IP address and VLAN membership), click “edit” .

Choose to obtain an IP address from a DHCP server or manually enter an IP address.

You can also configure a VLAN ID for the network interface to assign it to a logically segmented network. Because a VLAN is considered a separate logical network, traffic destined for devices belonging to different VLANs must be routed. Creating VLANs may increase security and reliability of your network.

Note: The VLAN ID must be a number between 1 and 4094.

b. Specify a DNS Server

Assign a DNS server or automatically obtain a DNS server address.

C. Configure Port Trunking

Port Trunking allows you to combine multiple LAN interfaces for increased bandwidth, load balance and traffic failover to maintain network connectivity in the event of a network port failure.

Note: Certain Port Trunking modes require corresponding support and proper configuration of connected switches. For example, IEEE 802.3ad must be enabled on switches in order to use IEEE 802.3ad Dynamic Link Aggregation.

1. Click “Add” to start Port Trunking configuration.

2. Select network adapters and the Port Trunking mode.

3. Click “Apply”.

*This function is only available on certain models.
*This function is not be supported by the TBS-453A.

d. Configure IPv6

To enable IPv6, click “IPv6” and check the “Enable IPv6”option.

The system will restart after you enable the IPv6 setting. After the system reboots, the IPV6 page will show the available IPv6 configuration settings. Use this page to configure IPv6 and DNS server settings or enable radvd service, the Router Advertisement Daemon for IPv6.

Note: radvd can only be configured on Adapter 1.

e. Create a Virtual Switch

With the Virtual Switch function, you can create virtual switches or obtain information about virtual switches that you have created in Virtualization Station, Container Station, or Linux Station. There are two virtual switch modes to help you establish network connections according to your environment.

  • Create a Virtual Switch with Private Network Mode

    A private network restricts access to only enable communication between computers that are on the same physical network. This configuration is ideal for communicating or sharing data within a network and Internet connectivity is not a requirement or desirable. For example, you can build an isolated LAN environment for accessing surveillance systems with better data security.

    To create a Virtual Switch to build a private network:

    1. In the “Virtual Switch” tab, click “Add” > “Private Network Mode”.

    2. Select the adapters that you want to add to this private network. Then enter the required parameters such as the IP address range and lease time.

    3. Click “Add”.

The devices connected to these adapters will obtain an IP address. However, they can only communicate with other devices belonging to the same virtual switch.

  • Create a Virtual Switch with Switch Mode

    A virtual switch links your local network with another network or the Internet connection. To create a Virtual Switch that bridges networks:

    1. In the “Virtual Switch” tab, click “Add” > “Switch Mode”.

    2. Select “Uplink” for the adapter that connects to another network or the Internet and “Downlink” for the devices that will connect to the virtual switch.

    3. Click “Add”.

After being set up, devices can be connected to another network or to the Internet through the designated uplink port of the virtual switch.

Note: For both Switch and Private Network Mode, please avoid creating a looped topology. If this happens on your network, every device will lose the ability to communicate on the network.

f. Physical Switch built in TBS-453A

The TBS-453A has an integrated hardware switch in addition to advanced virtual switch functionality. By default, you can simply use the LAN ports as network switch ports. Or you can freely configure designated ports as a secure private network.

  • To connect to the Internet through the physical switch:

    1. Adapter 2 represents the integrated switch and allows you to configure LAN ports 2-1 to 2-4 as network switch ports.

    2. Go to “Network & Virtual Switch” > “Interfaces” > “Physical Switch”.

    3. The default mode is switch mode, connect one of these ports (2-1 to 2-4) to the Internet and use the remaining ports to connect to other devices.

  • To create a private network:

    1. Ensure ports 2-1 to 2-4 are not connected to another network.

    2. Click the “Interfaces” tab and select “Physical Switch”.

    3. Click “Apply”. Now connect to port 2-1 to 2-4 to form a secure local network.

Note: For both Switch and Private Network Mode, please avoid creating a looped topology. If this happens on your network, every device will lose the ability to communicate on the network.

3. Wi-Fi

Plug in a USB Wi-Fi adapter to the NAS to connect it to a wireless network. The NAS will then start listening for wireless networks that are within range. The following are two methods for creating a connection to a wireless network.

a. Make a connection to a wireless network that is visible and in range

Most wireless network access points can be configured to broadcast a Service Set Identifier (SSID) or to not broadcast it. If a wireless access point is broadcasting, then the NAS can discover it. The Wi-Fi list will show all compatible wireless networks that have been discovered, the strength of the signal and whether it is password-protected. To connect to a network that is visible and in range:

1. Select the network to which you want to connect, and then click “Connect” .

2. The system will determine the security requirements, for example, Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA), and other supported encryption methods. You will be prompted to enter a security key if the network requires one.

b. Make a connection to an invisible wireless network

You can still connect to a wireless network access point that is not broadcasting its SSID by manually entering the SSID and security information.

To manually connect to a wireless network, click “Connect to a Wi-Fi network”. Then enter the information needed to complete the connection. You can also build an ad-hoc network, that allows nodes to communicate directly (computer-to-computer) without the need for an AP.

Note: The system only supports one USB wireless adapter at a time.

4. DHCP Server

The DHCP Server function allows you to configure the DHCP server function of the NAS. The NAS can act as a DHCP server for your network. A DHCP server automatically assigns an IP address to each computer or device on your network. To enable the DHCP service on the NAS:

1. Click the “DHCP Server” tab, and then click “Add”.

2. Select the network adapter for the DHCP service and enter the related settings such as the IP address range and client lease time. Then, click “Apply”.

3. The DHCP Server page will display the DHCP Server information.

5. Default Gateway

Use the following instructions to set up a default gateway that allows for contact between the NAS and a remote network (e.g. the Internet) or host.

1. Click “Default gateway”.

2. The system will automatically detect adapters that can reach the Internet and set one to be the pre-determined interface that packets will be sent out from.

3. If you want to manually choose a default gateway, select “Manually choose the system’s default gateway”. Select a secondary interface in the event that the primary interface cannot reach the designated remote network.

Release date: 2016-01-19
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