UDP

VPN over UDP is an option Remote offers for secure, low-latency connections. UDP (User Datagram Protocol) sends data with less overhead and faster than TCP because it does not perform additional acknowledgments and retransmissions. This makes VPN over UDP suitable for applications where fast, real-time communication is important.

When to Choose UDP Instead of TCP

Choose UDP when speed and low latency matter more than maximum error correction. For industrial processes with continuous data streams or applications where fast response times are critical, UDP delivers better performance than TCP. Note that UDP provides less error checking; for applications that require absolute reliability, TCP is often preferable.

Configure a Client to Connect over UDP

To have a client connect over UDP, go to the Portal and then Manage Clients, and follow these steps:

1. Open Manage Clients and choose the relevant client.
2. Click Edit.
3. Select the Connect via UDP option.
4. Save the change to activate the setting immediately.

Practical Tips

After switching, verify that the VPN connection functions as expected: monitor connection times and any retransmissions. Note that some network environments have firewalls or proxies that handle UDP connections differently.