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Version: TOS 7

Network Interfaces

A TNAS device may be equipped with one, two, or more network interfaces. You can configure each network interface individually.

Interface Management​

  • Edit: Modify the parameter configuration of the network interface.
  • Obtain network configuration automatically (DHCP): DHCP is a network protocol for managing automatic IP configuration.
  • Configure network manually: Manually set the IP address, subnet mask, DNS server, and default gateway for the network interface.
  • Service Priority: When the TNAS is equipped with two or more network interfaces, or with a USB Wi-Fi adapter, you can set the service priority order of these network interfaces.
Note
  1. If you select "Obtain network configuration automatically (DHCP)", the IP address of TNAS may change every time the device restarts. It is recommended that you use the TNAS PC Desktop App to retrieve the correct IP address after restarting the TNAS device.
  2. When using two or more network interfaces simultaneously, the network interface with service priority 1 must be able to connect to the internet; otherwise, TNAS will fail to access the internet.

PPPoE​

When your Internet Service Provider (ISP) uses PPPoE (Point-to-Point Protocol over Ethernet), you can enable PPPoE in Control Panel > Network > Network Interfaces and fill in the account information, allowing the device to connect directly to the network without needing a router.

Bond​

When the TNAS is configured with two or more network interfaces, you can create a "Bond" for the network interfaces. Bond can combine multiple network interfaces into a single logical network interface, achieving network bandwidth aggregation or network failover.

Note
  • Bandwidth aggregation is mainly applicable to scenarios where multiple devices access the NAS simultaneously.
  • A single device's connection speed typically does not exceed the maximum speed of a single network interface.
  • In modes that support bandwidth aggregation, with dual 5G network ports, the theoretical maximum can reach approximately 10G when multiple devices access simultaneously.
  • Support for different Bond modes depends on whether OVS is enabled.

Bond supports the following four modes:

  • Adaptive Load Balancing
    No switch configuration required. The system automatically distributes traffic based on network load. Supports bandwidth aggregation and network interface failover.
  • IEEE 802.3ad Dynamic Link Aggregation
    Requires the switch to enable the LACP protocol. Supports bandwidth aggregation and provides network interface fault protection.
  • XOR Balance Policy
    Requires the switch to configure static link aggregation. The system distributes network traffic according to fixed rules to ensure data transmission order. Supports bandwidth aggregation.
  • Active/Backup
    No switch configuration required. Only the primary network interface works, while the backup interface is used for failover. Does not support bandwidth aggregation (dual 5G ports still at 5G), only used to improve network connection reliability.

When OVS is enabled, Bond supports the following three modes:

  • Balance-SLB
    No switch configuration required. The system automatically distributes network traffic. Supports bandwidth aggregation and network interface failover.

  • Balance-TCP
    Requires the switch to enable the LACP protocol. The system distributes network traffic based on IP addresses, ports, and other information, supporting bandwidth aggregation.
    Note: If the switch does not have LACP enabled, it may cause NAS network connection interruption, making the system inaccessible.

  • Active/Backup Mode
    No switch configuration required. Only the primary network interface works, while the backup interface is used for failover. Does not support bandwidth aggregation (dual 5G ports still at 5G), only used to improve network connection reliability.

Bond Management:

  • Create: Create a Bond.
  • Delete: Delete an existing Bond.
  • Edit: Modify the parameter configuration of the Bond interface.
Note

When creating or deleting a Bond, the IP address may change. The system will automatically redirect you to the new IP address. If redirection fails, please use the TNAS PC desktop client to log in to TOS again.
After deleting a Bond, the network ports used for the Bond will be released and assigned IP addresses.

Network Bridge​

Network Bridge can combine multiple physical network ports of the NAS into a single logical network, allowing the NAS to act as a virtual switch. Devices connected to different network ports of the NAS are on the same local area network and can communicate directly with the router and access the internet.

Network Bridge Configuration Steps​

  1. Enable Bridge
    Log in to TOS and go to 【Control Panel】 → 【Network】 → 【Interface】, then click "Create Bridge" to enter the creation wizard.

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  In the wizard, check "Enable Network Bridge", select two or more network interfaces to be bridged (e.g., LAN1, LAN2, Thunderbolt interface), and add them to the bridge interface.

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  Click "Confirm" and wait for the system to prompt "Operation successful". After creation, the original network interfaces will disappear and the system will automatically generate a virtual network card starting with BR.

Note

After creating or removing a network bridge, the IP address of the NAS may change. It is recommended that you use the TNAS PC desktop application to re-obtain the correct IP address and log in to TOS again.

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  1. Configure the IP Address of the Bridge Interface
  • By default, the system automatically obtains an IP address via DHCP.
  • You can manually set the IP address, subnet mask, default gateway, and DNS. When configuring manually, the IP address must be set to the same network segment as the router.

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  1. Configure Computer Network
    Use a network cable to connect the computer's RJ45 interface to one of the bridged network ports of the NAS. Change the IP acquisition method of the computer's network interface to DHCP, and the computer will automatically obtain an IP address on the same network segment as the NAS.
    You can also manually configure the computer's IP address, but ensure that the computer and NAS are on the same local area network, and that the subnet mask, default gateway, and DNS server are consistent with those of the NAS.

  2. Verify Access Once the above configuration is complete, the computer will be able to access the internet while maintaining high-speed data transmission with the NAS.

Deleting a Network Bridge​

On the 【Interface】 page, select the bridge interface you want to delete and click "Delete" or "Remove Bridge".

Note

After creating or removing a network bridge, the IP address of the NAS may change. It is recommended that you use the TNAS PC desktop application to re-obtain the correct IP address and log in to TOS again.
Do not connect both bridged network interfaces to the same switch or router, as this may cause a network loop, resulting in a broadcast storm and network outage.

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FAQ​