| Feature | UDP Listener | DTLS Listener | WireGuard Listener |
|---|---|---|---|
| Transport | Plain UDP | DTLS 1.2 or DTLS 1.3 | WireGuard tunnel |
| Encryption | Application responsibility | TLS-style authenticated encryption | WireGuard authenticated encryption |
| Client authentication | Client Restrictions | Certificate handshake or configured PSK identity | Registered peer key or open-peer policy |
| Payload delivered to Destinations | UDP payload | Decrypted application data | WireGuard payload; optionally decapsulated |
| Typical fit | Simple or already-encrypted protocols | Applications with native DTLS support | VPN clients and IP tunneling |
Serverless DTLS
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