DSM driver for realtek RTL8152/RTL8153/RTL8156 based USB Ethernet adapters

This is a RTL8152/RTL8153/RTL8156(2.5Gbps or 1.0Gbps) driver package for Synology NASes.

You may also be interested in my another project AQC111U(5Gbps) driver package for Synology NASes.

Supported NAS platform

• DSM 7.x
• apollolake based products
  • DS918+ (confirmed working)
  • DS620slim
  • DS1019+
  • DS718+
  • DS418play
  • DS218+

You can download drivers including other platforms from the release page and determine a proper driver for your model from knowledge base of Synology, but you might encounter some issues with unconfirmed platforms. If you are using such an unconfirmed models, the Compatibility page may be helpful.

I very much appreciate if you report whether it works. If you have any problems, the Troubleshooting page may help.

NOTE: I recommend using front ports to connect devices because some users reported stability issues when they use rear ports.

Supported RTL8156(2.5Gbps) based devices

• ASUSTOR AS-U2.5G (Type-C)
  • NOTE: The included Type A-C conversion adapter is directional. There's a mark on one side of the USB-C connector that must be on the same side as the USB logo on the adapter.
• Plannex USB-LAN2500R (Type-A, Japan only)
• Buffalo LUA-U3-A2G (Type-A, Japan only)
• CLUB 3D CAC-1420 (Type-A,)
• TRENDnet TUC-ET2G (Type-C)
• CableCreation 2.5G Ethernet to USB Adapter (Type-A)
• UGREEN USB C to 2.5G Ethernet Adapter (Type-C)
• biaze KZ13 (Type-A, confirmed working)

See the Compatibility page for the latest information. If you got other products not listed and they do not work, please create a issue with the output of lsusb.

How to install

Preparation

Enable SSH and login your NAS.

Installation

1. Go to "Package Center"
2. Press "Manual Install"
3. Chose a driver package downloaded from the release page.
4. [DSM7] The installation will fail the first time. After that, run the following command from the SSH terminal:
   • sudo install -m 4755 -o root -D /var/packages/r8152/target/r8152/spk_su /opt/sbin/spk_su
5. [DSM7] Retry installation.
   • You don't need above DSM7 specific steps at the next time.
6. Reboot your NAS.
   • This procedure is not usually necessary, but many have reported that a reboot was necessary, so please reboot just in case.

https://www.synology.com/en-us/knowledgebase/SRM/help/SRM/PkgManApp/install_buy

Warning: Do not use Safari for this operation.

How to configure

You can configure the IP addresses and MTU of the added NICs from the DSM UI in the same way as the built-in NICs.

Option: I recommend setting MTU to 9000 and SMB protocol version to v3 for better performance.

Performance test

Environment

• DS918+ (USB-LAN2500R)
• DSM 6.2
• direct connection with PC (AQN-107: discontinued, but almost equivalent to ASUS XG-C100C)
• native iperf3
  • using docker causes high CPU load

Result

Connecting to host 192.168.0.xxx, port 5201
[  4] local 192.168.0.xxx port 50366 connected to 192.168.0.xxx port 5201
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-1.00   sec   266 MBytes  2.23 Gbits/sec
[  4]   1.00-2.00   sec   274 MBytes  2.30 Gbits/sec
[  4]   2.00-3.00   sec   278 MBytes  2.33 Gbits/sec
[  4]   3.00-4.00   sec   278 MBytes  2.33 Gbits/sec
[  4]   4.00-5.00   sec   278 MBytes  2.33 Gbits/sec
[  4]   5.00-6.00   sec   278 MBytes  2.34 Gbits/sec
[  4]   6.00-7.00   sec   274 MBytes  2.30 Gbits/sec
[  4]   7.00-8.00   sec   267 MBytes  2.24 Gbits/sec
[  4]   8.00-9.00   sec   269 MBytes  2.26 Gbits/sec
[  4]   9.00-10.00  sec   271 MBytes  2.27 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bandwidth
[  4]   0.00-10.00  sec  2.67 GBytes  2.29 Gbits/sec                  sender
[  4]   0.00-10.00  sec  2.67 GBytes  2.29 Gbits/sec                  receiver

iperf Done.