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
41 comments
Hello. I can’t resolve the domain. YouTube seems to use DGA domains. Like rr5—-sn-q4fl6n6s.googlevideo.com, rr4—-sn-gvnuxaxjvh-c356.googlevideo.com and (part).googlevideo.com is always different. Is it possible that the router can’t resolve 3rd level domains, etc.? It works in the OpenWRT firmware, but not in yours. What should I do?
I repeat, I can’t get a list of addresses, and I can’t list them in the router config either. Moreover, adding each domain manually also takes a long time.
@danrer,
Dear Customer，
Thank you for contacting Cudy support team.
We will follow this issue immediately.
“I bought a WR3600H, set up a VPN on it, it works, but the problem is that the rules don’t work. Only 3 sites should work through vpn. I did everything according to the instructions. I’ve been communicating with support via email for almost a month now, but their responses are so slow and don’t help solve the problem.”
I bought a WR3600H, set up a VPN on it, it works, but the problem is that the rules don’t work. Only 3 sites should work through vpn. I did everything according to the instructions. I’ve been communicating with support via email for almost a month now, but their responses are so slow and don’t help solve the problem.
@RFP Ngola
Dear Customer,
Thank you for contacting Cudy support team.
I think the reason is about the routing rules. You need to set the routing rule on the LANCOM 1800VAW to access the LAN subnet of the LT700. The destination is 192.168.10.0 255.255.255.0 by default, via IPsec interface.
“Request for Help: LANCOM to Cudy LT700 VPN Connection Issue
Hello everyone,
I have a LANCOM 1800VAW modem with built-in IPsec IKEv2 VPN. I’ve successfully established a VPN connection from LANCOM to Cudy LT700. From the Cudy LT700 side, I can access the LANCOM public network and reach all devices on its internal network.
However, the issue is that from the LANCOM 1800VAW, I cannot access the Cudy LT700 modem or its local network. Due to software limitations, I’m unable to apply advanced configurations on the Cudy modem anymore.
I would really appreciate any assistance or suggestions to help resolve this issue.
Thank you in advance,
Fernando
"
@Jose
Dear Jose,
Thank you for contacting Cudy support team. I need some more information to fix this issue.
1. What do you want to access via the Zerotier? The WEB page of the master or slave router? Or there is a server in the LAN area of the master or slave router?
2. You can try to follow the instruction on the website to set it.
https://www.cudy.com/blogs/faq/how-to-remote-connect-cudy-router-via-zerotier?pos=1&_sid=c45ca1410&ss=r
Most of the time, you need to do two other things:
First, change one of the router’s LAN IP address (default is 192.168.10.1/24) to other subnet, such as 192.168.20.1/24.
Second, set the routing rules on the Zerotier management WEB console.
“Hello, I have two cudy lt400 routers, I need to connect them through zerotier , the máster and slave zero tier router are connected through a 4g chip, I ping the máster zerotier’s IP from another PC from slave router, the ping does not respond. The other way around neither. Please!!”