![]() ![]() You can do some of this directly with WireGuard by not setting up tunnels between devices that should not communicate or by using the operating system firewall to control traffic flow. ![]() With the Team and Business plans, Tailscale adds an ACL layer on top of WireGuard, so that you can further control network traffic. Our client code is open source, so you can confirm that yourself. It is important to note that a device’s private key never leaves the device and thus Tailscale cannot decrypt network traffic. Using Tailscale introduces a dependency on Tailscale’s security. Tailscale and WireGuard offer identical point-to-point traffic encryption. (Tailscale traffic between two devices on the same LAN does not leave that LAN.) Security There is no need to modify firewalls or routers any devices that can reach the internet can reach each other. When NAT traversal fails, Tailscale relays encrypted traffic, so that devices can always talk to each other, albeit with higher latency in that case. Tailscale takes care of on-demand NAT traversal so that devices can talk to each other directly in most circumstances, without manual configuration. Establishing a connection or re-establishing a broken connection requires updating configuration files. WireGuard can detect and adapt to changing IP addresses as long as a connection remains open and both ends do not change addresses simultaneously. But in some cases to ensure that your devices can communicate, you may need to open a hole in your firewall or configure port forwarding on your router. WireGuard has a persistent keepalive option, which can keep the tunnel open through NAT devices. It does not ensure that those devices can connect that is up to you. WireGuard ensures that all traffic flowing between two devices is secure. This can be particularly useful if some of the devices belong to non-technical users. Tailscale manages key distribution and all configurations for you. To connect devices using Tailscale, you install and log in to Tailscale on each device. Every pair of devices requires a configuration entry, so the total number of configuration entries grows quadratically in the number of devices if they are fully connected to each other. It’s straightforward, particularly for a VPN. The configuration includes information about the device (port to listen on, private IP address, private key) and information about the peer device (public key, endpoint where the peer device can be reached, private IPs associated with the peer device). To connect two devices, you install WireGuard on each device, generate keys for each device, and then write a text configuration for each device. WireGuard is typically configured using the wg-quick tool. configuring and running WireGuard directly. You might decide to use WireGuard directly, without Tailscale. We designed Tailscale to make it easier to use WireGuard to secure your network connections. ![]() Tailscale is built on top of WireGuard we think very highly of it. ![]() Should I use Tailscale or WireGuard® to secure my network? The answer is yes! ![]()
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