A VPN client is a terminal device or software used to establish a secure connection between a user and a VPN server.
What is VPN?
VPN (Virtual Private Network) helps you access internet resources remotely, securely, and privately with tunneling technology. The VPN encrypts your personal information and hides your IP address from the public when you use the internet. To the users of the VPN, it will look like the computers were directly connected to each other.
Common Network Topology:
Here we take WR2100 as a demonstration.
Step 1: Open a web browser and go to http://cudy.net or http://192.168.10.1.
For details, please refer to How to log into the web interface of Cudy Router?
Step 2: Click on General Settings->VPN and enable VPN.
Default Rule: Allow all devices or Ban all devices to use VPN.
To specify the device, click on System Status-> Devices->VPN to enable or disable it.
Site-to-Site: Allow the devices in two sites to communicate with each other.
VPN Policy:
Disable: No additional setting.
VPN kill switch: Turn off the Internet connectivity when the VPN connection is lost.
Domain: Specify which domains go through the VPN and which don't
Remote Subnet: Specify what subnets go through the VPN and which don't
Step 3: In the Protocol list, select the one you need and enter the VPN information provided by your VPN provider.
• PPTP VPN
Enter the VPN server address (for example, 113.92.73.163) and the VPN Username and password provided by your VPN provider.
• L2TP VPN
Enter the VPN server address (for example 113.92.73.163), VPN username and password, and pre-shared key provided by your VPN provider.
If your VPN provider also provides you the tunnel IP which binds with the account, you can enable the Use custom tunnel IP option.
• OpenVPN
Click on Browser to import the configuration file provided by your VPN provider.
• WireGuard VPN
Click on Browser to import the configuration file provided by your VPN provider.
The Interface and Peer will synchronize automatically from your VPN Provider's CONF File.
• ZeroTier Slave
Type in the ZeroTier Network ID and Gateway provided by the ZeroTier Master. The Gateway can be found on VPN Status part.
Related Article: How to remote connect Cudy Router via Zerotier?-Cudy Home
138 comentarios
Hi
I tried to run OpenVPN Client on CUDY WR300H.
Unfortunately after uploading configuration file and login/pwd I’m receiving message
“daemon.err openvpn(client)18653: Options error: Unrecognized option or missing or extra parameter(s) in /etc/openvpn/client/client.ovpn:10: gro (2.5.2)”
How I can fix it ?
Dear Adriano, 1. Please use a phone or computer connect to the router, then try to connect to the VPN server on the phone or computer. Check if the device can connect? 2. Please check if the firmware of the router is the latest version, if not, please update and check. 3. If the phone or computer can connect to the VPN server when connected to the router and the firmware is the latest. Please login to the web page of the router, download the Diagnosis bin file in "Diagnostic Tools"->"Diagnosis"->"GO"->"Download", and send the file to me. My email address is samcudy.com.
“Hello,
We bought a LT500D to test if we could use it to connect it to our own VPN server (openvpn) so all devices connected to it would be accessible from our network…
Managed to configure everything, import a openvpn profile specifically created for it… but it doesnt even try to connect to our server and stays all the time saying “not connected”..
Can you help?
Thank you,
Regards,
AP"
Hello,
We bought a LT500D to test if we could use it to connect it to our own VPN server (openvpn) so all devices connected to it would be accessible from our network…
Managed to configure everything, import a openvpn profile specifically created for it… but it doesnt even try to connect to our server and stays all the time saying “not connected”..
Can you help?
Thank you,
Regards,
AP
@Dear Georgios,
You can go to “System Status” -“Devices” -“More Details” page to shutdown the VPN of specific device. Please have a try.
“M3600 V1.0 | FW: 2.3.15-20250829-114714
System Status→ Devices→VPN is not enabling or disabling anything.
VPN is used by all devices every time. In other words filtering is not working. Good Job!!”
M3600 V1.0 | FW: 2.3.15-20250829-114714
System Status→ Devices→VPN is not enabling or disabling anything.
VPN is used by all devices every time. In other words filtering is not working. Good Job!!