DrayTek Weekly Update 10 September 2025

DrayTek Weekly Update 10 September 2025

The new DrayTek DrayOS 5 routers have removed SSL, L2TP and PPTP encryptions from their VPN offering.

However, we now have IPsec, WireGuard and OpenVPN encryptions. IPsec has three different types: IKEv1/IKEv2, EAP, and Xauth. These last two modes require certificates to be created and exported to the client site, but the IKEv1/v2 use only a PSK (pre-shared key), which is very easy to set up for Teleworkers who use remote dial-out VPN.

This short video demonstrates how to create an IPsec Tunnel using a Pre Shared Key on a Vigor2136 using the SmartVPN client.

Click here to watch the video.

 

How to configure an OpenVPN tunnel on a DrayTek 2136 with SmartVPN client


This video demonstrates how to configure an OpenVPN tunnel on a DrayTek Vigor2136 with SmartVPN client in Windows.

This video provides a brief overview of the DrayTek Vigor167 modem/router.

Note, the Vigor167 is configured in bridging mode by default, meaning the DHCP server is not enabled. To log into it to make any changes, you will first need to set a static IP address on your PC, for example, 192.168.1.40, Subnet Mask 255.255.255.0. For more information on how to do this, see the video - Configuring the DrayTek Vigor167 for Bridge Mode

Click here to watch the video.

LAN to LAN IPsec VPN between DrayOS 4 and DrayOS 5




This video demonstrates how to set up LAN-to-LAN IPsec VPN tunnels between DrayOS 4 and DrayOS 5 routers.

Click here to watch the video.

Latest Knowledge Base Articles

This article includes a short video on how Draytek implements the Zero Trust Network architecture in its Dray OS 5 routers, such as the Vigour 2136 and the C510.

Click here to view this article.

 

This article describes how to configure a routed subnet in a DrayOS 5 router. The Vigor2136ax router is used in the example.

Click here to read this article.

 

This article describes the DMZ function in DrayOS 5 routers, such as the Vigor2136 and C510 series.

Click here to read this article.

 

This article describes the Port Knocking Feature that is now available in the latest firmware for higher-end routers.  It includes a short video based on the application note: https://www.draytek.com/support/knowledge-base/11621

Click here to read this article.

 

Latest Firmware

Improvements

          -  Improved Web GUI Security

          -  Comply with EN 18031 cybersecurity requirements

          -  Improve the Wi-Fi Driver Security (CVE-2025-20681~20684 CVE-2025-20688~20692).

          -  Add an option to enable/disable the force password change when using the ".def" file.

          -  Fixed: LTE PPP mode did not work with EM060k-EA.

          -  Fixed: Router rebooted when provisioned by ACS with an XML file that included specific VPN settings.

Click here to download the firmware.

 

Improvements

          -  Improve WebGUI security

         -  Fixed: High memory usage for the Max Connection number of 150K

          -  Fixed: Unexpected router reboots related to IPv6 WAN2 port link down/up, and DPDK Anti-Dos support

For a complete list of improvements, refer to the release notes in the download link.

Firmware version 4.4.3.6 stable release is also available for download at the download link.

Click here to download the firmware.

 

Vigor3912 V4.4.5.1 (Mainline Release)

Improvements

         -  Improve WebGUI security

          -  Fixed: High memory usage for the Max Connection number of 150K

          -  Fixed: Unexpected router reboots related to IPv6 WAN2 port link down/up, and DPDK Anti-Dos support

For a complete list of improvements, refer to the release notes in the download link.

Firmware version 4.4.3.6 stable release is also available for download at the download link.

Click here to download the firmware.

 

DrayTek HQ often sends notifications of system updates or outages, security notifications, and firmware releases.

Click here  for the latest news from DrayTek HQ

 

To subscribe to our regular news updates, click “Subscribe” on this page or log into your i-helpdesk account and enable the “Subscribe” option.

 


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